angelovcom.net

comment.php (125758B)

---

 <?php
 /**
  * Core Comment API
  *
  * @package WordPress
  * @subpackage Comment
  */
 
 /**
  * Check whether a comment passes internal checks to be allowed to add.
  *
  * If manual comment moderation is set in the administration, then all checks,
  * regardless of their type and substance, will fail and the function will
  * return false.
  *
  * If the number of links exceeds the amount in the administration, then the
  * check fails. If any of the parameter contents contain any disallowed words,
  * then the check fails.
  *
  * If the comment author was approved before, then the comment is automatically
  * approved.
  *
  * If all checks pass, the function will return true.
  *
  * @since 1.2.0
  *
  * @global wpdb $wpdb WordPress database abstraction object.
  *
  * @param string $author       Comment author name.
  * @param string $email        Comment author email.
  * @param string $url          Comment author URL.
  * @param string $comment      Content of the comment.
  * @param string $user_ip      Comment author IP address.
  * @param string $user_agent   Comment author User-Agent.
  * @param string $comment_type Comment type, either user-submitted comment,
  *                             trackback, or pingback.
  * @return bool If all checks pass, true, otherwise false.
  */
 function check_comment( $author, $email, $url, $comment, $user_ip, $user_agent, $comment_type ) {
 	global $wpdb;
 
 	// If manual moderation is enabled, skip all checks and return false.
 	if ( 1 == get_option( 'comment_moderation' ) ) {
 		return false;
 	}
 
 	/** This filter is documented in wp-includes/comment-template.php */
 	$comment = apply_filters( 'comment_text', $comment, null, array() );
 
 	// Check for the number of external links if a max allowed number is set.
 	$max_links = get_option( 'comment_max_links' );
 	if ( $max_links ) {
 		$num_links = preg_match_all( '/<a [^>]*href/i', $comment, $out );
 
 		/**
 		 * Filters the number of links found in a comment.
 		 *
 		 * @since 3.0.0
 		 * @since 4.7.0 Added the `$comment` parameter.
 		 *
 		 * @param int    $num_links The number of links found.
 		 * @param string $url       Comment author's URL. Included in allowed links total.
 		 * @param string $comment   Content of the comment.
 		 */
 		$num_links = apply_filters( 'comment_max_links_url', $num_links, $url, $comment );
 
 		/*
 		 * If the number of links in the comment exceeds the allowed amount,
 		 * fail the check by returning false.
 		 */
 		if ( $num_links >= $max_links ) {
 			return false;
 		}
 	}
 
 	$mod_keys = trim( get_option( 'moderation_keys' ) );
 
 	// If moderation 'keys' (keywords) are set, process them.
 	if ( ! empty( $mod_keys ) ) {
 		$words = explode( "\n", $mod_keys );
 
 		foreach ( (array) $words as $word ) {
 			$word = trim( $word );
 
 			// Skip empty lines.
 			if ( empty( $word ) ) {
 				continue;
 			}
 
 			/*
 			 * Do some escaping magic so that '#' (number of) characters in the spam
 			 * words don't break things:
 			 */
 			$word = preg_quote( $word, '#' );
 
 			/*
 			 * Check the comment fields for moderation keywords. If any are found,
 			 * fail the check for the given field by returning false.
 			 */
 			$pattern = "#$word#i";
 			if ( preg_match( $pattern, $author ) ) {
 				return false;
 			}
 			if ( preg_match( $pattern, $email ) ) {
 				return false;
 			}
 			if ( preg_match( $pattern, $url ) ) {
 				return false;
 			}
 			if ( preg_match( $pattern, $comment ) ) {
 				return false;
 			}
 			if ( preg_match( $pattern, $user_ip ) ) {
 				return false;
 			}
 			if ( preg_match( $pattern, $user_agent ) ) {
 				return false;
 			}
 		}
 	}
 
 	/*
 	 * Check if the option to approve comments by previously-approved authors is enabled.
 	 *
 	 * If it is enabled, check whether the comment author has a previously-approved comment,
 	 * as well as whether there are any moderation keywords (if set) present in the author
 	 * email address. If both checks pass, return true. Otherwise, return false.
 	 */
 	if ( 1 == get_option( 'comment_previously_approved' ) ) {
 		if ( 'trackback' !== $comment_type && 'pingback' !== $comment_type && '' !== $author && '' !== $email ) {
 			$comment_user = get_user_by( 'email', wp_unslash( $email ) );
 			if ( ! empty( $comment_user->ID ) ) {
 				$ok_to_comment = $wpdb->get_var( $wpdb->prepare( "SELECT comment_approved FROM $wpdb->comments WHERE user_id = %d AND comment_approved = '1' LIMIT 1", $comment_user->ID ) );
 			} else {
 				// expected_slashed ($author, $email)
 				$ok_to_comment = $wpdb->get_var( $wpdb->prepare( "SELECT comment_approved FROM $wpdb->comments WHERE comment_author = %s AND comment_author_email = %s and comment_approved = '1' LIMIT 1", $author, $email ) );
 			}
 			if ( ( 1 == $ok_to_comment ) &&
 				( empty( $mod_keys ) || false === strpos( $email, $mod_keys ) ) ) {
 					return true;
 			} else {
 				return false;
 			}
 		} else {
 			return false;
 		}
 	}
 	return true;
 }
 
 /**
  * Retrieve the approved comments for post $post_id.
  *
  * @since 2.0.0
  * @since 4.1.0 Refactored to leverage WP_Comment_Query over a direct query.
  *
  * @param int   $post_id The ID of the post.
  * @param array $args    Optional. See WP_Comment_Query::__construct() for information on accepted arguments.
  * @return int|array The approved comments, or number of comments if `$count`
  *                   argument is true.
  */
 function get_approved_comments( $post_id, $args = array() ) {
 	if ( ! $post_id ) {
 		return array();
 	}
 
 	$defaults    = array(
 		'status'  => 1,
 		'post_id' => $post_id,
 		'order'   => 'ASC',
 	);
 	$parsed_args = wp_parse_args( $args, $defaults );
 
 	$query = new WP_Comment_Query;
 	return $query->query( $parsed_args );
 }
 
 /**
  * Retrieves comment data given a comment ID or comment object.
  *
  * If an object is passed then the comment data will be cached and then returned
  * after being passed through a filter. If the comment is empty, then the global
  * comment variable will be used, if it is set.
  *
  * @since 2.0.0
  *
  * @global WP_Comment $comment Global comment object.
  *
  * @param WP_Comment|string|int $comment Comment to retrieve.
  * @param string                $output  Optional. The required return type. One of OBJECT, ARRAY_A, or ARRAY_N, which
  *                                       correspond to a WP_Comment object, an associative array, or a numeric array,
  *                                       respectively. Default OBJECT.
  * @return WP_Comment|array|null Depends on $output value.
  */
 function get_comment( $comment = null, $output = OBJECT ) {
 	if ( empty( $comment ) && isset( $GLOBALS['comment'] ) ) {
 		$comment = $GLOBALS['comment'];
 	}
 
 	if ( $comment instanceof WP_Comment ) {
 		$_comment = $comment;
 	} elseif ( is_object( $comment ) ) {
 		$_comment = new WP_Comment( $comment );
 	} else {
 		$_comment = WP_Comment::get_instance( $comment );
 	}
 
 	if ( ! $_comment ) {
 		return null;
 	}
 
 	/**
 	 * Fires after a comment is retrieved.
 	 *
 	 * @since 2.3.0
 	 *
 	 * @param WP_Comment $_comment Comment data.
 	 */
 	$_comment = apply_filters( 'get_comment', $_comment );
 
 	if ( OBJECT === $output ) {
 		return $_comment;
 	} elseif ( ARRAY_A === $output ) {
 		return $_comment->to_array();
 	} elseif ( ARRAY_N === $output ) {
 		return array_values( $_comment->to_array() );
 	}
 	return $_comment;
 }
 
 /**
  * Retrieve a list of comments.
  *
  * The comment list can be for the blog as a whole or for an individual post.
  *
  * @since 2.7.0
  *
  * @param string|array $args Optional. Array or string of arguments. See WP_Comment_Query::__construct()
  *                           for information on accepted arguments. Default empty.
  * @return int|array List of comments or number of found comments if `$count` argument is true.
  */
 function get_comments( $args = '' ) {
 	$query = new WP_Comment_Query;
 	return $query->query( $args );
 }
 
 /**
  * Retrieve all of the WordPress supported comment statuses.
  *
  * Comments have a limited set of valid status values, this provides the comment
  * status values and descriptions.
  *
  * @since 2.7.0
  *
  * @return string[] List of comment status labels keyed by status.
  */
 function get_comment_statuses() {
 	$status = array(
 		'hold'    => __( 'Unapproved' ),
 		'approve' => _x( 'Approved', 'comment status' ),
 		'spam'    => _x( 'Spam', 'comment status' ),
 		'trash'   => _x( 'Trash', 'comment status' ),
 	);
 
 	return $status;
 }
 
 /**
  * Gets the default comment status for a post type.
  *
  * @since 4.3.0
  *
  * @param string $post_type    Optional. Post type. Default 'post'.
  * @param string $comment_type Optional. Comment type. Default 'comment'.
  * @return string Expected return value is 'open' or 'closed'.
  */
 function get_default_comment_status( $post_type = 'post', $comment_type = 'comment' ) {
 	switch ( $comment_type ) {
 		case 'pingback':
 		case 'trackback':
 			$supports = 'trackbacks';
 			$option   = 'ping';
 			break;
 		default:
 			$supports = 'comments';
 			$option   = 'comment';
 			break;
 	}
 
 	// Set the status.
 	if ( 'page' === $post_type ) {
 		$status = 'closed';
 	} elseif ( post_type_supports( $post_type, $supports ) ) {
 		$status = get_option( "default_{$option}_status" );
 	} else {
 		$status = 'closed';
 	}
 
 	/**
 	 * Filters the default comment status for the given post type.
 	 *
 	 * @since 4.3.0
 	 *
 	 * @param string $status       Default status for the given post type,
 	 *                             either 'open' or 'closed'.
 	 * @param string $post_type    Post type. Default is `post`.
 	 * @param string $comment_type Type of comment. Default is `comment`.
 	 */
 	return apply_filters( 'get_default_comment_status', $status, $post_type, $comment_type );
 }
 
 /**
  * The date the last comment was modified.
  *
  * @since 1.5.0
  * @since 4.7.0 Replaced caching the modified date in a local static variable
  *              with the Object Cache API.
  *
  * @global wpdb $wpdb WordPress database abstraction object.
  *
  * @param string $timezone Which timezone to use in reference to 'gmt', 'blog', or 'server' locations.
  * @return string|false Last comment modified date on success, false on failure.
  */
 function get_lastcommentmodified( $timezone = 'server' ) {
 	global $wpdb;
 
 	$timezone = strtolower( $timezone );
 	$key      = "lastcommentmodified:$timezone";
 
 	$comment_modified_date = wp_cache_get( $key, 'timeinfo' );
 	if ( false !== $comment_modified_date ) {
 		return $comment_modified_date;
 	}
 
 	switch ( $timezone ) {
 		case 'gmt':
 			$comment_modified_date = $wpdb->get_var( "SELECT comment_date_gmt FROM $wpdb->comments WHERE comment_approved = '1' ORDER BY comment_date_gmt DESC LIMIT 1" );
 			break;
 		case 'blog':
 			$comment_modified_date = $wpdb->get_var( "SELECT comment_date FROM $wpdb->comments WHERE comment_approved = '1' ORDER BY comment_date_gmt DESC LIMIT 1" );
 			break;
 		case 'server':
 			$add_seconds_server = gmdate( 'Z' );
 
 			$comment_modified_date = $wpdb->get_var( $wpdb->prepare( "SELECT DATE_ADD(comment_date_gmt, INTERVAL %s SECOND) FROM $wpdb->comments WHERE comment_approved = '1' ORDER BY comment_date_gmt DESC LIMIT 1", $add_seconds_server ) );
 			break;
 	}
 
 	if ( $comment_modified_date ) {
 		wp_cache_set( $key, $comment_modified_date, 'timeinfo' );
 
 		return $comment_modified_date;
 	}
 
 	return false;
 }
 
 /**
  * Retrieves the total comment counts for the whole site or a single post.
  *
  * Unlike wp_count_comments(), this function always returns the live comment counts without caching.
  *
  * @since 2.0.0
  *
  * @global wpdb $wpdb WordPress database abstraction object.
  *
  * @param int $post_id Optional. Restrict the comment counts to the given post. Default 0, which indicates that
  *                     comment counts for the whole site will be retrieved.
  * @return array() {
  *     The number of comments keyed by their status.
  *
  *     @type int $approved            The number of approved comments.
  *     @type int $awaiting_moderation The number of comments awaiting moderation (a.k.a. pending).
  *     @type int $spam                The number of spam comments.
  *     @type int $trash               The number of trashed comments.
  *     @type int $post-trashed        The number of comments for posts that are in the trash.
  *     @type int $total_comments      The total number of non-trashed comments, including spam.
  *     @type int $all                 The total number of pending or approved comments.
  * }
  */
 function get_comment_count( $post_id = 0 ) {
 	global $wpdb;
 
 	$post_id = (int) $post_id;
 
 	$where = '';
 	if ( $post_id > 0 ) {
 		$where = $wpdb->prepare( 'WHERE comment_post_ID = %d', $post_id );
 	}
 
 	$totals = (array) $wpdb->get_results(
 		"
 		SELECT comment_approved, COUNT( * ) AS total
 		FROM {$wpdb->comments}
 		{$where}
 		GROUP BY comment_approved
 	",
 		ARRAY_A
 	);
 
 	$comment_count = array(
 		'approved'            => 0,
 		'awaiting_moderation' => 0,
 		'spam'                => 0,
 		'trash'               => 0,
 		'post-trashed'        => 0,
 		'total_comments'      => 0,
 		'all'                 => 0,
 	);
 
 	foreach ( $totals as $row ) {
 		switch ( $row['comment_approved'] ) {
 			case 'trash':
 				$comment_count['trash'] = $row['total'];
 				break;
 			case 'post-trashed':
 				$comment_count['post-trashed'] = $row['total'];
 				break;
 			case 'spam':
 				$comment_count['spam']            = $row['total'];
 				$comment_count['total_comments'] += $row['total'];
 				break;
 			case '1':
 				$comment_count['approved']        = $row['total'];
 				$comment_count['total_comments'] += $row['total'];
 				$comment_count['all']            += $row['total'];
 				break;
 			case '0':
 				$comment_count['awaiting_moderation'] = $row['total'];
 				$comment_count['total_comments']     += $row['total'];
 				$comment_count['all']                += $row['total'];
 				break;
 			default:
 				break;
 		}
 	}
 
 	return array_map( 'intval', $comment_count );
 }
 
 //
 // Comment meta functions.
 //
 
 /**
  * Add meta data field to a comment.
  *
  * @since 2.9.0
  *
  * @link https://developer.wordpress.org/reference/functions/add_comment_meta/
  *
  * @param int    $comment_id Comment ID.
  * @param string $meta_key   Metadata name.
  * @param mixed  $meta_value Metadata value. Must be serializable if non-scalar.
  * @param bool   $unique     Optional. Whether the same key should not be added.
  *                           Default false.
  * @return int|false Meta ID on success, false on failure.
  */
 function add_comment_meta( $comment_id, $meta_key, $meta_value, $unique = false ) {
 	return add_metadata( 'comment', $comment_id, $meta_key, $meta_value, $unique );
 }
 
 /**
  * Remove metadata matching criteria from a comment.
  *
  * You can match based on the key, or key and value. Removing based on key and
  * value, will keep from removing duplicate metadata with the same key. It also
  * allows removing all metadata matching key, if needed.
  *
  * @since 2.9.0
  *
  * @link https://developer.wordpress.org/reference/functions/delete_comment_meta/
  *
  * @param int    $comment_id Comment ID.
  * @param string $meta_key   Metadata name.
  * @param mixed  $meta_value Optional. Metadata value. If provided,
  *                           rows will only be removed that match the value.
  *                           Must be serializable if non-scalar. Default empty.
  * @return bool True on success, false on failure.
  */
 function delete_comment_meta( $comment_id, $meta_key, $meta_value = '' ) {
 	return delete_metadata( 'comment', $comment_id, $meta_key, $meta_value );
 }
 
 /**
  * Retrieve comment meta field for a comment.
  *
  * @since 2.9.0
  *
  * @link https://developer.wordpress.org/reference/functions/get_comment_meta/
  *
  * @param int    $comment_id Comment ID.
  * @param string $key        Optional. The meta key to retrieve. By default,
  *                           returns data for all keys.
  * @param bool   $single     Optional. Whether to return a single value.
  *                           This parameter has no effect if `$key` is not specified.
  *                           Default false.
  * @return mixed An array of values if `$single` is false.
  *               The value of meta data field if `$single` is true.
  *               False for an invalid `$comment_id` (non-numeric, zero, or negative value).
  *               An empty string if a valid but non-existing comment ID is passed.
  */
 function get_comment_meta( $comment_id, $key = '', $single = false ) {
 	return get_metadata( 'comment', $comment_id, $key, $single );
 }
 
 /**
  * Update comment meta field based on comment ID.
  *
  * Use the $prev_value parameter to differentiate between meta fields with the
  * same key and comment ID.
  *
  * If the meta field for the comment does not exist, it will be added.
  *
  * @since 2.9.0
  *
  * @link https://developer.wordpress.org/reference/functions/update_comment_meta/
  *
  * @param int    $comment_id Comment ID.
  * @param string $meta_key   Metadata key.
  * @param mixed  $meta_value Metadata value. Must be serializable if non-scalar.
  * @param mixed  $prev_value Optional. Previous value to check before updating.
  *                           If specified, only update existing metadata entries with
  *                           this value. Otherwise, update all entries. Default empty.
  * @return int|bool Meta ID if the key didn't exist, true on successful update,
  *                  false on failure or if the value passed to the function
  *                  is the same as the one that is already in the database.
  */
 function update_comment_meta( $comment_id, $meta_key, $meta_value, $prev_value = '' ) {
 	return update_metadata( 'comment', $comment_id, $meta_key, $meta_value, $prev_value );
 }
 
 /**
  * Queues comments for metadata lazy-loading.
  *
  * @since 4.5.0
  *
  * @param WP_Comment[] $comments Array of comment objects.
  */
 function wp_queue_comments_for_comment_meta_lazyload( $comments ) {
 	// Don't use `wp_list_pluck()` to avoid by-reference manipulation.
 	$comment_ids = array();
 	if ( is_array( $comments ) ) {
 		foreach ( $comments as $comment ) {
 			if ( $comment instanceof WP_Comment ) {
 				$comment_ids[] = $comment->comment_ID;
 			}
 		}
 	}
 
 	if ( $comment_ids ) {
 		$lazyloader = wp_metadata_lazyloader();
 		$lazyloader->queue_objects( 'comment', $comment_ids );
 	}
 }
 
 /**
  * Sets the cookies used to store an unauthenticated commentator's identity. Typically used
  * to recall previous comments by this commentator that are still held in moderation.
  *
  * @since 3.4.0
  * @since 4.9.6 The `$cookies_consent` parameter was added.
  *
  * @param WP_Comment $comment         Comment object.
  * @param WP_User    $user            Comment author's user object. The user may not exist.
  * @param bool       $cookies_consent Optional. Comment author's consent to store cookies. Default true.
  */
 function wp_set_comment_cookies( $comment, $user, $cookies_consent = true ) {
 	// If the user already exists, or the user opted out of cookies, don't set cookies.
 	if ( $user->exists() ) {
 		return;
 	}
 
 	if ( false === $cookies_consent ) {
 		// Remove any existing cookies.
 		$past = time() - YEAR_IN_SECONDS;
 		setcookie( 'comment_author_' . COOKIEHASH, ' ', $past, COOKIEPATH, COOKIE_DOMAIN );
 		setcookie( 'comment_author_email_' . COOKIEHASH, ' ', $past, COOKIEPATH, COOKIE_DOMAIN );
 		setcookie( 'comment_author_url_' . COOKIEHASH, ' ', $past, COOKIEPATH, COOKIE_DOMAIN );
 
 		return;
 	}
 
 	/**
 	 * Filters the lifetime of the comment cookie in seconds.
 	 *
 	 * @since 2.8.0
 	 *
 	 * @param int $seconds Comment cookie lifetime. Default 30000000.
 	 */
 	$comment_cookie_lifetime = time() + apply_filters( 'comment_cookie_lifetime', 30000000 );
 
 	$secure = ( 'https' === parse_url( home_url(), PHP_URL_SCHEME ) );
 
 	setcookie( 'comment_author_' . COOKIEHASH, $comment->comment_author, $comment_cookie_lifetime, COOKIEPATH, COOKIE_DOMAIN, $secure );
 	setcookie( 'comment_author_email_' . COOKIEHASH, $comment->comment_author_email, $comment_cookie_lifetime, COOKIEPATH, COOKIE_DOMAIN, $secure );
 	setcookie( 'comment_author_url_' . COOKIEHASH, esc_url( $comment->comment_author_url ), $comment_cookie_lifetime, COOKIEPATH, COOKIE_DOMAIN, $secure );
 }
 
 /**
  * Sanitizes the cookies sent to the user already.
  *
  * Will only do anything if the cookies have already been created for the user.
  * Mostly used after cookies had been sent to use elsewhere.
  *
  * @since 2.0.4
  */
 function sanitize_comment_cookies() {
 	if ( isset( $_COOKIE[ 'comment_author_' . COOKIEHASH ] ) ) {
 		/**
 		 * Filters the comment author's name cookie before it is set.
 		 *
 		 * When this filter hook is evaluated in wp_filter_comment(),
 		 * the comment author's name string is passed.
 		 *
 		 * @since 1.5.0
 		 *
 		 * @param string $author_cookie The comment author name cookie.
 		 */
 		$comment_author = apply_filters( 'pre_comment_author_name', $_COOKIE[ 'comment_author_' . COOKIEHASH ] );
 		$comment_author = wp_unslash( $comment_author );
 		$comment_author = esc_attr( $comment_author );
 
 		$_COOKIE[ 'comment_author_' . COOKIEHASH ] = $comment_author;
 	}
 
 	if ( isset( $_COOKIE[ 'comment_author_email_' . COOKIEHASH ] ) ) {
 		/**
 		 * Filters the comment author's email cookie before it is set.
 		 *
 		 * When this filter hook is evaluated in wp_filter_comment(),
 		 * the comment author's email string is passed.
 		 *
 		 * @since 1.5.0
 		 *
 		 * @param string $author_email_cookie The comment author email cookie.
 		 */
 		$comment_author_email = apply_filters( 'pre_comment_author_email', $_COOKIE[ 'comment_author_email_' . COOKIEHASH ] );
 		$comment_author_email = wp_unslash( $comment_author_email );
 		$comment_author_email = esc_attr( $comment_author_email );
 
 		$_COOKIE[ 'comment_author_email_' . COOKIEHASH ] = $comment_author_email;
 	}
 
 	if ( isset( $_COOKIE[ 'comment_author_url_' . COOKIEHASH ] ) ) {
 		/**
 		 * Filters the comment author's URL cookie before it is set.
 		 *
 		 * When this filter hook is evaluated in wp_filter_comment(),
 		 * the comment author's URL string is passed.
 		 *
 		 * @since 1.5.0
 		 *
 		 * @param string $author_url_cookie The comment author URL cookie.
 		 */
 		$comment_author_url = apply_filters( 'pre_comment_author_url', $_COOKIE[ 'comment_author_url_' . COOKIEHASH ] );
 		$comment_author_url = wp_unslash( $comment_author_url );
 
 		$_COOKIE[ 'comment_author_url_' . COOKIEHASH ] = $comment_author_url;
 	}
 }
 
 /**
  * Validates whether this comment is allowed to be made.
  *
  * @since 2.0.0
  * @since 4.7.0 The `$avoid_die` parameter was added, allowing the function
  *              to return a WP_Error object instead of dying.
  * @since 5.5.0 The `$avoid_die` parameter was renamed to `$wp_error`.
  *
  * @global wpdb $wpdb WordPress database abstraction object.
  *
  * @param array $commentdata Contains information on the comment.
  * @param bool  $wp_error    When true, a disallowed comment will result in the function
  *                           returning a WP_Error object, rather than executing wp_die().
  *                           Default false.
  * @return int|string|WP_Error Allowed comments return the approval status (0|1|'spam'|'trash').
  *                             If `$wp_error` is true, disallowed comments return a WP_Error.
  */
 function wp_allow_comment( $commentdata, $wp_error = false ) {
 	global $wpdb;
 
 	// Simple duplicate check.
 	// expected_slashed ($comment_post_ID, $comment_author, $comment_author_email, $comment_content)
 	$dupe = $wpdb->prepare(
 		"SELECT comment_ID FROM $wpdb->comments WHERE comment_post_ID = %d AND comment_parent = %s AND comment_approved != 'trash' AND ( comment_author = %s ",
 		wp_unslash( $commentdata['comment_post_ID'] ),
 		wp_unslash( $commentdata['comment_parent'] ),
 		wp_unslash( $commentdata['comment_author'] )
 	);
 	if ( $commentdata['comment_author_email'] ) {
 		$dupe .= $wpdb->prepare(
 			'AND comment_author_email = %s ',
 			wp_unslash( $commentdata['comment_author_email'] )
 		);
 	}
 	$dupe .= $wpdb->prepare(
 		') AND comment_content = %s LIMIT 1',
 		wp_unslash( $commentdata['comment_content'] )
 	);
 
 	$dupe_id = $wpdb->get_var( $dupe );
 
 	/**
 	 * Filters the ID, if any, of the duplicate comment found when creating a new comment.
 	 *
 	 * Return an empty value from this filter to allow what WP considers a duplicate comment.
 	 *
 	 * @since 4.4.0
 	 *
 	 * @param int   $dupe_id     ID of the comment identified as a duplicate.
 	 * @param array $commentdata Data for the comment being created.
 	 */
 	$dupe_id = apply_filters( 'duplicate_comment_id', $dupe_id, $commentdata );
 
 	if ( $dupe_id ) {
 		/**
 		 * Fires immediately after a duplicate comment is detected.
 		 *
 		 * @since 3.0.0
 		 *
 		 * @param array $commentdata Comment data.
 		 */
 		do_action( 'comment_duplicate_trigger', $commentdata );
 
 		/**
 		 * Filters duplicate comment error message.
 		 *
 		 * @since 5.2.0
 		 *
 		 * @param string $comment_duplicate_message Duplicate comment error message.
 		 */
 		$comment_duplicate_message = apply_filters( 'comment_duplicate_message', __( 'Duplicate comment detected; it looks as though you&#8217;ve already said that!' ) );
 
 		if ( $wp_error ) {
 			return new WP_Error( 'comment_duplicate', $comment_duplicate_message, 409 );
 		} else {
 			if ( wp_doing_ajax() ) {
 				die( $comment_duplicate_message );
 			}
 
 			wp_die( $comment_duplicate_message, 409 );
 		}
 	}
 
 	/**
 	 * Fires immediately before a comment is marked approved.
 	 *
 	 * Allows checking for comment flooding.
 	 *
 	 * @since 2.3.0
 	 * @since 4.7.0 The `$avoid_die` parameter was added.
 	 * @since 5.5.0 The `$avoid_die` parameter was renamed to `$wp_error`.
 	 *
 	 * @param string $comment_author_IP    Comment author's IP address.
 	 * @param string $comment_author_email Comment author's email.
 	 * @param string $comment_date_gmt     GMT date the comment was posted.
 	 * @param bool   $wp_error             Whether to return a WP_Error object instead of executing
 	 *                                     wp_die() or die() if a comment flood is occurring.
 	 */
 	do_action(
 		'check_comment_flood',
 		$commentdata['comment_author_IP'],
 		$commentdata['comment_author_email'],
 		$commentdata['comment_date_gmt'],
 		$wp_error
 	);
 
 	/**
 	 * Filters whether a comment is part of a comment flood.
 	 *
 	 * The default check is wp_check_comment_flood(). See check_comment_flood_db().
 	 *
 	 * @since 4.7.0
 	 * @since 5.5.0 The `$avoid_die` parameter was renamed to `$wp_error`.
 	 *
 	 * @param bool   $is_flood             Is a comment flooding occurring? Default false.
 	 * @param string $comment_author_IP    Comment author's IP address.
 	 * @param string $comment_author_email Comment author's email.
 	 * @param string $comment_date_gmt     GMT date the comment was posted.
 	 * @param bool   $wp_error             Whether to return a WP_Error object instead of executing
 	 *                                     wp_die() or die() if a comment flood is occurring.
 	 */
 	$is_flood = apply_filters(
 		'wp_is_comment_flood',
 		false,
 		$commentdata['comment_author_IP'],
 		$commentdata['comment_author_email'],
 		$commentdata['comment_date_gmt'],
 		$wp_error
 	);
 
 	if ( $is_flood ) {
 		/** This filter is documented in wp-includes/comment-template.php */
 		$comment_flood_message = apply_filters( 'comment_flood_message', __( 'You are posting comments too quickly. Slow down.' ) );
 
 		return new WP_Error( 'comment_flood', $comment_flood_message, 429 );
 	}
 
 	if ( ! empty( $commentdata['user_id'] ) ) {
 		$user        = get_userdata( $commentdata['user_id'] );
 		$post_author = $wpdb->get_var(
 			$wpdb->prepare(
 				"SELECT post_author FROM $wpdb->posts WHERE ID = %d LIMIT 1",
 				$commentdata['comment_post_ID']
 			)
 		);
 	}
 
 	if ( isset( $user ) && ( $commentdata['user_id'] == $post_author || $user->has_cap( 'moderate_comments' ) ) ) {
 		// The author and the admins get respect.
 		$approved = 1;
 	} else {
 		// Everyone else's comments will be checked.
 		if ( check_comment(
 			$commentdata['comment_author'],
 			$commentdata['comment_author_email'],
 			$commentdata['comment_author_url'],
 			$commentdata['comment_content'],
 			$commentdata['comment_author_IP'],
 			$commentdata['comment_agent'],
 			$commentdata['comment_type']
 		) ) {
 			$approved = 1;
 		} else {
 			$approved = 0;
 		}
 
 		if ( wp_check_comment_disallowed_list(
 			$commentdata['comment_author'],
 			$commentdata['comment_author_email'],
 			$commentdata['comment_author_url'],
 			$commentdata['comment_content'],
 			$commentdata['comment_author_IP'],
 			$commentdata['comment_agent']
 		) ) {
 			$approved = EMPTY_TRASH_DAYS ? 'trash' : 'spam';
 		}
 	}
 
 	/**
 	 * Filters a comment's approval status before it is set.
 	 *
 	 * @since 2.1.0
 	 * @since 4.9.0 Returning a WP_Error value from the filter will short-circuit comment insertion
 	 *              and allow skipping further processing.
 	 *
 	 * @param int|string|WP_Error $approved    The approval status. Accepts 1, 0, 'spam', 'trash',
 	 *                                         or WP_Error.
 	 * @param array               $commentdata Comment data.
 	 */
 	return apply_filters( 'pre_comment_approved', $approved, $commentdata );
 }
 
 /**
  * Hooks WP's native database-based comment-flood check.
  *
  * This wrapper maintains backward compatibility with plugins that expect to
  * be able to unhook the legacy check_comment_flood_db() function from
  * 'check_comment_flood' using remove_action().
  *
  * @since 2.3.0
  * @since 4.7.0 Converted to be an add_filter() wrapper.
  */
 function check_comment_flood_db() {
 	add_filter( 'wp_is_comment_flood', 'wp_check_comment_flood', 10, 5 );
 }
 
 /**
  * Checks whether comment flooding is occurring.
  *
  * Won't run, if current user can manage options, so to not block
  * administrators.
  *
  * @since 4.7.0
  *
  * @global wpdb $wpdb WordPress database abstraction object.
  *
  * @param bool   $is_flood  Is a comment flooding occurring?
  * @param string $ip        Comment author's IP address.
  * @param string $email     Comment author's email address.
  * @param string $date      MySQL time string.
  * @param bool   $avoid_die When true, a disallowed comment will result in the function
  *                          returning without executing wp_die() or die(). Default false.
  * @return bool Whether comment flooding is occurring.
  */
 function wp_check_comment_flood( $is_flood, $ip, $email, $date, $avoid_die = false ) {
 
 	global $wpdb;
 
 	// Another callback has declared a flood. Trust it.
 	if ( true === $is_flood ) {
 		return $is_flood;
 	}
 
 	// Don't throttle admins or moderators.
 	if ( current_user_can( 'manage_options' ) || current_user_can( 'moderate_comments' ) ) {
 		return false;
 	}
 
 	$hour_ago = gmdate( 'Y-m-d H:i:s', time() - HOUR_IN_SECONDS );
 
 	if ( is_user_logged_in() ) {
 		$user         = get_current_user_id();
 		$check_column = '`user_id`';
 	} else {
 		$user         = $ip;
 		$check_column = '`comment_author_IP`';
 	}
 
 	$sql = $wpdb->prepare(
 		"SELECT `comment_date_gmt` FROM `$wpdb->comments` WHERE `comment_date_gmt` >= %s AND ( $check_column = %s OR `comment_author_email` = %s ) ORDER BY `comment_date_gmt` DESC LIMIT 1",
 		$hour_ago,
 		$user,
 		$email
 	);
 
 	$lasttime = $wpdb->get_var( $sql );
 
 	if ( $lasttime ) {
 		$time_lastcomment = mysql2date( 'U', $lasttime, false );
 		$time_newcomment  = mysql2date( 'U', $date, false );
 
 		/**
 		 * Filters the comment flood status.
 		 *
 		 * @since 2.1.0
 		 *
 		 * @param bool $bool             Whether a comment flood is occurring. Default false.
 		 * @param int  $time_lastcomment Timestamp of when the last comment was posted.
 		 * @param int  $time_newcomment  Timestamp of when the new comment was posted.
 		 */
 		$flood_die = apply_filters( 'comment_flood_filter', false, $time_lastcomment, $time_newcomment );
 
 		if ( $flood_die ) {
 			/**
 			 * Fires before the comment flood message is triggered.
 			 *
 			 * @since 1.5.0
 			 *
 			 * @param int $time_lastcomment Timestamp of when the last comment was posted.
 			 * @param int $time_newcomment  Timestamp of when the new comment was posted.
 			 */
 			do_action( 'comment_flood_trigger', $time_lastcomment, $time_newcomment );
 
 			if ( $avoid_die ) {
 				return true;
 			} else {
 				/**
 				 * Filters the comment flood error message.
 				 *
 				 * @since 5.2.0
 				 *
 				 * @param string $comment_flood_message Comment flood error message.
 				 */
 				$comment_flood_message = apply_filters( 'comment_flood_message', __( 'You are posting comments too quickly. Slow down.' ) );
 
 				if ( wp_doing_ajax() ) {
 					die( $comment_flood_message );
 				}
 
 				wp_die( $comment_flood_message, 429 );
 			}
 		}
 	}
 
 	return false;
 }
 
 /**
  * Separates an array of comments into an array keyed by comment_type.
  *
  * @since 2.7.0
  *
  * @param WP_Comment[] $comments Array of comments
  * @return WP_Comment[] Array of comments keyed by comment_type.
  */
 function separate_comments( &$comments ) {
 	$comments_by_type = array(
 		'comment'   => array(),
 		'trackback' => array(),
 		'pingback'  => array(),
 		'pings'     => array(),
 	);
 
 	$count = count( $comments );
 
 	for ( $i = 0; $i < $count; $i++ ) {
 		$type = $comments[ $i ]->comment_type;
 
 		if ( empty( $type ) ) {
 			$type = 'comment';
 		}
 
 		$comments_by_type[ $type ][] = &$comments[ $i ];
 
 		if ( 'trackback' === $type || 'pingback' === $type ) {
 			$comments_by_type['pings'][] = &$comments[ $i ];
 		}
 	}
 
 	return $comments_by_type;
 }
 
 /**
  * Calculate the total number of comment pages.
  *
  * @since 2.7.0
  *
  * @uses Walker_Comment
  *
  * @global WP_Query $wp_query WordPress Query object.
  *
  * @param WP_Comment[] $comments Optional. Array of WP_Comment objects. Defaults to `$wp_query->comments`.
  * @param int          $per_page Optional. Comments per page.
  * @param bool         $threaded Optional. Control over flat or threaded comments.
  * @return int Number of comment pages.
  */
 function get_comment_pages_count( $comments = null, $per_page = null, $threaded = null ) {
 	global $wp_query;
 
 	if ( null === $comments && null === $per_page && null === $threaded && ! empty( $wp_query->max_num_comment_pages ) ) {
 		return $wp_query->max_num_comment_pages;
 	}
 
 	if ( ( ! $comments || ! is_array( $comments ) ) && ! empty( $wp_query->comments ) ) {
 		$comments = $wp_query->comments;
 	}
 
 	if ( empty( $comments ) ) {
 		return 0;
 	}
 
 	if ( ! get_option( 'page_comments' ) ) {
 		return 1;
 	}
 
 	if ( ! isset( $per_page ) ) {
 		$per_page = (int) get_query_var( 'comments_per_page' );
 	}
 	if ( 0 === $per_page ) {
 		$per_page = (int) get_option( 'comments_per_page' );
 	}
 	if ( 0 === $per_page ) {
 		return 1;
 	}
 
 	if ( ! isset( $threaded ) ) {
 		$threaded = get_option( 'thread_comments' );
 	}
 
 	if ( $threaded ) {
 		$walker = new Walker_Comment;
 		$count  = ceil( $walker->get_number_of_root_elements( $comments ) / $per_page );
 	} else {
 		$count = ceil( count( $comments ) / $per_page );
 	}
 
 	return $count;
 }
 
 /**
  * Calculate what page number a comment will appear on for comment paging.
  *
  * @since 2.7.0
  *
  * @global wpdb $wpdb WordPress database abstraction object.
  *
  * @param int   $comment_ID Comment ID.
  * @param array $args {
  *     Array of optional arguments.
  *
  *     @type string     $type      Limit paginated comments to those matching a given type.
  *                                 Accepts 'comment', 'trackback', 'pingback', 'pings'
  *                                 (trackbacks and pingbacks), or 'all'. Default 'all'.
  *     @type int        $per_page  Per-page count to use when calculating pagination.
  *                                 Defaults to the value of the 'comments_per_page' option.
  *     @type int|string $max_depth If greater than 1, comment page will be determined
  *                                 for the top-level parent `$comment_ID`.
  *                                 Defaults to the value of the 'thread_comments_depth' option.
  * } *
  * @return int|null Comment page number or null on error.
  */
 function get_page_of_comment( $comment_ID, $args = array() ) {
 	global $wpdb;
 
 	$page = null;
 
 	$comment = get_comment( $comment_ID );
 	if ( ! $comment ) {
 		return;
 	}
 
 	$defaults      = array(
 		'type'      => 'all',
 		'page'      => '',
 		'per_page'  => '',
 		'max_depth' => '',
 	);
 	$args          = wp_parse_args( $args, $defaults );
 	$original_args = $args;
 
 	// Order of precedence: 1. `$args['per_page']`, 2. 'comments_per_page' query_var, 3. 'comments_per_page' option.
 	if ( get_option( 'page_comments' ) ) {
 		if ( '' === $args['per_page'] ) {
 			$args['per_page'] = get_query_var( 'comments_per_page' );
 		}
 
 		if ( '' === $args['per_page'] ) {
 			$args['per_page'] = get_option( 'comments_per_page' );
 		}
 	}
 
 	if ( empty( $args['per_page'] ) ) {
 		$args['per_page'] = 0;
 		$args['page']     = 0;
 	}
 
 	if ( $args['per_page'] < 1 ) {
 		$page = 1;
 	}
 
 	if ( null === $page ) {
 		if ( '' === $args['max_depth'] ) {
 			if ( get_option( 'thread_comments' ) ) {
 				$args['max_depth'] = get_option( 'thread_comments_depth' );
 			} else {
 				$args['max_depth'] = -1;
 			}
 		}
 
 		// Find this comment's top-level parent if threading is enabled.
 		if ( $args['max_depth'] > 1 && 0 != $comment->comment_parent ) {
 			return get_page_of_comment( $comment->comment_parent, $args );
 		}
 
 		$comment_args = array(
 			'type'       => $args['type'],
 			'post_id'    => $comment->comment_post_ID,
 			'fields'     => 'ids',
 			'count'      => true,
 			'status'     => 'approve',
 			'parent'     => 0,
 			'date_query' => array(
 				array(
 					'column' => "$wpdb->comments.comment_date_gmt",
 					'before' => $comment->comment_date_gmt,
 				),
 			),
 		);
 
 		if ( is_user_logged_in() ) {
 			$comment_args['include_unapproved'] = array( get_current_user_id() );
 		} else {
 			$unapproved_email = wp_get_unapproved_comment_author_email();
 
 			if ( $unapproved_email ) {
 				$comment_args['include_unapproved'] = array( $unapproved_email );
 			}
 		}
 
 		/**
 		 * Filters the arguments used to query comments in get_page_of_comment().
 		 *
 		 * @since 5.5.0
 		 *
 		 * @see WP_Comment_Query::__construct()
 		 *
 		 * @param array $comment_args {
 		 *     Array of WP_Comment_Query arguments.
 		 *
 		 *     @type string $type               Limit paginated comments to those matching a given type.
 		 *                                      Accepts 'comment', 'trackback', 'pingback', 'pings'
 		 *                                      (trackbacks and pingbacks), or 'all'. Default 'all'.
 		 *     @type int    $post_id            ID of the post.
 		 *     @type string $fields             Comment fields to return.
 		 *     @type bool   $count              Whether to return a comment count (true) or array
 		 *                                      of comment objects (false).
 		 *     @type string $status             Comment status.
 		 *     @type int    $parent             Parent ID of comment to retrieve children of.
 		 *     @type array  $date_query         Date query clauses to limit comments by. See WP_Date_Query.
 		 *     @type array  $include_unapproved Array of IDs or email addresses whose unapproved comments
 		 *                                      will be included in paginated comments.
 		 * }
 		 */
 		$comment_args = apply_filters( 'get_page_of_comment_query_args', $comment_args );
 
 		$comment_query       = new WP_Comment_Query();
 		$older_comment_count = $comment_query->query( $comment_args );
 
 		// No older comments? Then it's page #1.
 		if ( 0 == $older_comment_count ) {
 			$page = 1;
 
 			// Divide comments older than this one by comments per page to get this comment's page number.
 		} else {
 			$page = ceil( ( $older_comment_count + 1 ) / $args['per_page'] );
 		}
 	}
 
 	/**
 	 * Filters the calculated page on which a comment appears.
 	 *
 	 * @since 4.4.0
 	 * @since 4.7.0 Introduced the `$comment_ID` parameter.
 	 *
 	 * @param int   $page          Comment page.
 	 * @param array $args {
 	 *     Arguments used to calculate pagination. These include arguments auto-detected by the function,
 	 *     based on query vars, system settings, etc. For pristine arguments passed to the function,
 	 *     see `$original_args`.
 	 *
 	 *     @type string $type      Type of comments to count.
 	 *     @type int    $page      Calculated current page.
 	 *     @type int    $per_page  Calculated number of comments per page.
 	 *     @type int    $max_depth Maximum comment threading depth allowed.
 	 * }
 	 * @param array $original_args {
 	 *     Array of arguments passed to the function. Some or all of these may not be set.
 	 *
 	 *     @type string $type      Type of comments to count.
 	 *     @type int    $page      Current comment page.
 	 *     @type int    $per_page  Number of comments per page.
 	 *     @type int    $max_depth Maximum comment threading depth allowed.
 	 * }
 	 * @param int $comment_ID ID of the comment.
 	 */
 	return apply_filters( 'get_page_of_comment', (int) $page, $args, $original_args, $comment_ID );
 }
 
 /**
  * Retrieves the maximum character lengths for the comment form fields.
  *
  * @since 4.5.0
  *
  * @global wpdb $wpdb WordPress database abstraction object.
  *
  * @return int[] Array of maximum lengths keyed by field name.
  */
 function wp_get_comment_fields_max_lengths() {
 	global $wpdb;
 
 	$lengths = array(
 		'comment_author'       => 245,
 		'comment_author_email' => 100,
 		'comment_author_url'   => 200,
 		'comment_content'      => 65525,
 	);
 
 	if ( $wpdb->is_mysql ) {
 		foreach ( $lengths as $column => $length ) {
 			$col_length = $wpdb->get_col_length( $wpdb->comments, $column );
 			$max_length = 0;
 
 			// No point if we can't get the DB column lengths.
 			if ( is_wp_error( $col_length ) ) {
 				break;
 			}
 
 			if ( ! is_array( $col_length ) && (int) $col_length > 0 ) {
 				$max_length = (int) $col_length;
 			} elseif ( is_array( $col_length ) && isset( $col_length['length'] ) && (int) $col_length['length'] > 0 ) {
 				$max_length = (int) $col_length['length'];
 
 				if ( ! empty( $col_length['type'] ) && 'byte' === $col_length['type'] ) {
 					$max_length = $max_length - 10;
 				}
 			}
 
 			if ( $max_length > 0 ) {
 				$lengths[ $column ] = $max_length;
 			}
 		}
 	}
 
 	/**
 	 * Filters the lengths for the comment form fields.
 	 *
 	 * @since 4.5.0
 	 *
 	 * @param int[] $lengths Array of maximum lengths keyed by field name.
 	 */
 	return apply_filters( 'wp_get_comment_fields_max_lengths', $lengths );
 }
 
 /**
  * Compares the lengths of comment data against the maximum character limits.
  *
  * @since 4.7.0
  *
  * @param array $comment_data Array of arguments for inserting a comment.
  * @return WP_Error|true WP_Error when a comment field exceeds the limit,
  *                       otherwise true.
  */
 function wp_check_comment_data_max_lengths( $comment_data ) {
 	$max_lengths = wp_get_comment_fields_max_lengths();
 
 	if ( isset( $comment_data['comment_author'] ) && mb_strlen( $comment_data['comment_author'], '8bit' ) > $max_lengths['comment_author'] ) {
 		return new WP_Error( 'comment_author_column_length', __( '<strong>Error</strong>: Your name is too long.' ), 200 );
 	}
 
 	if ( isset( $comment_data['comment_author_email'] ) && strlen( $comment_data['comment_author_email'] ) > $max_lengths['comment_author_email'] ) {
 		return new WP_Error( 'comment_author_email_column_length', __( '<strong>Error</strong>: Your email address is too long.' ), 200 );
 	}
 
 	if ( isset( $comment_data['comment_author_url'] ) && strlen( $comment_data['comment_author_url'] ) > $max_lengths['comment_author_url'] ) {
 		return new WP_Error( 'comment_author_url_column_length', __( '<strong>Error</strong>: Your URL is too long.' ), 200 );
 	}
 
 	if ( isset( $comment_data['comment_content'] ) && mb_strlen( $comment_data['comment_content'], '8bit' ) > $max_lengths['comment_content'] ) {
 		return new WP_Error( 'comment_content_column_length', __( '<strong>Error</strong>: Your comment is too long.' ), 200 );
 	}
 
 	return true;
 }
 
 /**
  * Checks if a comment contains disallowed characters or words.
  *
  * @since 5.5.0
  *
  * @param string $author The author of the comment
  * @param string $email The email of the comment
  * @param string $url The url used in the comment
  * @param string $comment The comment content
  * @param string $user_ip The comment author's IP address
  * @param string $user_agent The author's browser user agent
  * @return bool True if comment contains disallowed content, false if comment does not
  */
 function wp_check_comment_disallowed_list( $author, $email, $url, $comment, $user_ip, $user_agent ) {
 	/**
 	 * Fires before the comment is tested for disallowed characters or words.
 	 *
 	 * @since 1.5.0
 	 * @deprecated 5.5.0 Use {@see 'wp_check_comment_disallowed_list'} instead.
 	 *
 	 * @param string $author     Comment author.
 	 * @param string $email      Comment author's email.
 	 * @param string $url        Comment author's URL.
 	 * @param string $comment    Comment content.
 	 * @param string $user_ip    Comment author's IP address.
 	 * @param string $user_agent Comment author's browser user agent.
 	 */
 	do_action_deprecated(
 		'wp_blacklist_check',
 		array( $author, $email, $url, $comment, $user_ip, $user_agent ),
 		'5.5.0',
 		'wp_check_comment_disallowed_list',
 		__( 'Please consider writing more inclusive code.' )
 	);
 
 	/**
 	 * Fires before the comment is tested for disallowed characters or words.
 	 *
 	 * @since 5.5.0
 	 *
 	 * @param string $author     Comment author.
 	 * @param string $email      Comment author's email.
 	 * @param string $url        Comment author's URL.
 	 * @param string $comment    Comment content.
 	 * @param string $user_ip    Comment author's IP address.
 	 * @param string $user_agent Comment author's browser user agent.
 	 */
 	do_action( 'wp_check_comment_disallowed_list', $author, $email, $url, $comment, $user_ip, $user_agent );
 
 	$mod_keys = trim( get_option( 'disallowed_keys' ) );
 	if ( '' === $mod_keys ) {
 		return false; // If moderation keys are empty.
 	}
 
 	// Ensure HTML tags are not being used to bypass the list of disallowed characters and words.
 	$comment_without_html = wp_strip_all_tags( $comment );
 
 	$words = explode( "\n", $mod_keys );
 
 	foreach ( (array) $words as $word ) {
 		$word = trim( $word );
 
 		// Skip empty lines.
 		if ( empty( $word ) ) {
 			continue; }
 
 		// Do some escaping magic so that '#' chars
 		// in the spam words don't break things:
 		$word = preg_quote( $word, '#' );
 
 		$pattern = "#$word#i";
 		if ( preg_match( $pattern, $author )
 			|| preg_match( $pattern, $email )
 			|| preg_match( $pattern, $url )
 			|| preg_match( $pattern, $comment )
 			|| preg_match( $pattern, $comment_without_html )
 			|| preg_match( $pattern, $user_ip )
 			|| preg_match( $pattern, $user_agent )
 		) {
 			return true;
 		}
 	}
 	return false;
 }
 
 /**
  * Retrieves the total comment counts for the whole site or a single post.
  *
  * The comment stats are cached and then retrieved, if they already exist in the
  * cache.
  *
  * @see get_comment_count() Which handles fetching the live comment counts.
  *
  * @since 2.5.0
  *
  * @param int $post_id Optional. Restrict the comment counts to the given post. Default 0, which indicates that
  *                     comment counts for the whole site will be retrieved.
  * @return stdClass {
  *     The number of comments keyed by their status.
  *
  *     @type int $approved       The number of approved comments.
  *     @type int $moderated      The number of comments awaiting moderation (a.k.a. pending).
  *     @type int $spam           The number of spam comments.
  *     @type int $trash          The number of trashed comments.
  *     @type int $post-trashed   The number of comments for posts that are in the trash.
  *     @type int $total_comments The total number of non-trashed comments, including spam.
  *     @type int $all            The total number of pending or approved comments.
  * }
  */
 function wp_count_comments( $post_id = 0 ) {
 	$post_id = (int) $post_id;
 
 	/**
 	 * Filters the comments count for a given post or the whole site.
 	 *
 	 * @since 2.7.0
 	 *
 	 * @param array|stdClass $count   An empty array or an object containing comment counts.
 	 * @param int            $post_id The post ID. Can be 0 to represent the whole site.
 	 */
 	$filtered = apply_filters( 'wp_count_comments', array(), $post_id );
 	if ( ! empty( $filtered ) ) {
 		return $filtered;
 	}
 
 	$count = wp_cache_get( "comments-{$post_id}", 'counts' );
 	if ( false !== $count ) {
 		return $count;
 	}
 
 	$stats              = get_comment_count( $post_id );
 	$stats['moderated'] = $stats['awaiting_moderation'];
 	unset( $stats['awaiting_moderation'] );
 
 	$stats_object = (object) $stats;
 	wp_cache_set( "comments-{$post_id}", $stats_object, 'counts' );
 
 	return $stats_object;
 }
 
 /**
  * Trashes or deletes a comment.
  *
  * The comment is moved to Trash instead of permanently deleted unless Trash is
  * disabled, item is already in the Trash, or $force_delete is true.
  *
  * The post comment count will be updated if the comment was approved and has a
  * post ID available.
  *
  * @since 2.0.0
  *
  * @global wpdb $wpdb WordPress database abstraction object.
  *
  * @param int|WP_Comment $comment_id   Comment ID or WP_Comment object.
  * @param bool           $force_delete Whether to bypass Trash and force deletion. Default false.
  * @return bool True on success, false on failure.
  */
 function wp_delete_comment( $comment_id, $force_delete = false ) {
 	global $wpdb;
 	$comment = get_comment( $comment_id );
 	if ( ! $comment ) {
 		return false;
 	}
 
 	if ( ! $force_delete && EMPTY_TRASH_DAYS && ! in_array( wp_get_comment_status( $comment ), array( 'trash', 'spam' ), true ) ) {
 		return wp_trash_comment( $comment_id );
 	}
 
 	/**
 	 * Fires immediately before a comment is deleted from the database.
 	 *
 	 * @since 1.2.0
 	 * @since 4.9.0 Added the `$comment` parameter.
 	 *
 	 * @param int        $comment_id The comment ID.
 	 * @param WP_Comment $comment    The comment to be deleted.
 	 */
 	do_action( 'delete_comment', $comment->comment_ID, $comment );
 
 	// Move children up a level.
 	$children = $wpdb->get_col( $wpdb->prepare( "SELECT comment_ID FROM $wpdb->comments WHERE comment_parent = %d", $comment->comment_ID ) );
 	if ( ! empty( $children ) ) {
 		$wpdb->update( $wpdb->comments, array( 'comment_parent' => $comment->comment_parent ), array( 'comment_parent' => $comment->comment_ID ) );
 		clean_comment_cache( $children );
 	}
 
 	// Delete metadata.
 	$meta_ids = $wpdb->get_col( $wpdb->prepare( "SELECT meta_id FROM $wpdb->commentmeta WHERE comment_id = %d", $comment->comment_ID ) );
 	foreach ( $meta_ids as $mid ) {
 		delete_metadata_by_mid( 'comment', $mid );
 	}
 
 	if ( ! $wpdb->delete( $wpdb->comments, array( 'comment_ID' => $comment->comment_ID ) ) ) {
 		return false;
 	}
 
 	/**
 	 * Fires immediately after a comment is deleted from the database.
 	 *
 	 * @since 2.9.0
 	 * @since 4.9.0 Added the `$comment` parameter.
 	 *
 	 * @param int        $comment_id The comment ID.
 	 * @param WP_Comment $comment    The deleted comment.
 	 */
 	do_action( 'deleted_comment', $comment->comment_ID, $comment );
 
 	$post_id = $comment->comment_post_ID;
 	if ( $post_id && 1 == $comment->comment_approved ) {
 		wp_update_comment_count( $post_id );
 	}
 
 	clean_comment_cache( $comment->comment_ID );
 
 	/** This action is documented in wp-includes/comment.php */
 	do_action( 'wp_set_comment_status', $comment->comment_ID, 'delete' );
 
 	wp_transition_comment_status( 'delete', $comment->comment_approved, $comment );
 
 	return true;
 }
 
 /**
  * Moves a comment to the Trash
  *
  * If Trash is disabled, comment is permanently deleted.
  *
  * @since 2.9.0
  *
  * @param int|WP_Comment $comment_id Comment ID or WP_Comment object.
  * @return bool True on success, false on failure.
  */
 function wp_trash_comment( $comment_id ) {
 	if ( ! EMPTY_TRASH_DAYS ) {
 		return wp_delete_comment( $comment_id, true );
 	}
 
 	$comment = get_comment( $comment_id );
 	if ( ! $comment ) {
 		return false;
 	}
 
 	/**
 	 * Fires immediately before a comment is sent to the Trash.
 	 *
 	 * @since 2.9.0
 	 * @since 4.9.0 Added the `$comment` parameter.
 	 *
 	 * @param int        $comment_id The comment ID.
 	 * @param WP_Comment $comment    The comment to be trashed.
 	 */
 	do_action( 'trash_comment', $comment->comment_ID, $comment );
 
 	if ( wp_set_comment_status( $comment, 'trash' ) ) {
 		delete_comment_meta( $comment->comment_ID, '_wp_trash_meta_status' );
 		delete_comment_meta( $comment->comment_ID, '_wp_trash_meta_time' );
 		add_comment_meta( $comment->comment_ID, '_wp_trash_meta_status', $comment->comment_approved );
 		add_comment_meta( $comment->comment_ID, '_wp_trash_meta_time', time() );
 
 		/**
 		 * Fires immediately after a comment is sent to Trash.
 		 *
 		 * @since 2.9.0
 		 * @since 4.9.0 Added the `$comment` parameter.
 		 *
 		 * @param int        $comment_id The comment ID.
 		 * @param WP_Comment $comment    The trashed comment.
 		 */
 		do_action( 'trashed_comment', $comment->comment_ID, $comment );
 
 		return true;
 	}
 
 	return false;
 }
 
 /**
  * Removes a comment from the Trash
  *
  * @since 2.9.0
  *
  * @param int|WP_Comment $comment_id Comment ID or WP_Comment object.
  * @return bool True on success, false on failure.
  */
 function wp_untrash_comment( $comment_id ) {
 	$comment = get_comment( $comment_id );
 	if ( ! $comment ) {
 		return false;
 	}
 
 	/**
 	 * Fires immediately before a comment is restored from the Trash.
 	 *
 	 * @since 2.9.0
 	 * @since 4.9.0 Added the `$comment` parameter.
 	 *
 	 * @param int        $comment_id The comment ID.
 	 * @param WP_Comment $comment    The comment to be untrashed.
 	 */
 	do_action( 'untrash_comment', $comment->comment_ID, $comment );
 
 	$status = (string) get_comment_meta( $comment->comment_ID, '_wp_trash_meta_status', true );
 	if ( empty( $status ) ) {
 		$status = '0';
 	}
 
 	if ( wp_set_comment_status( $comment, $status ) ) {
 		delete_comment_meta( $comment->comment_ID, '_wp_trash_meta_time' );
 		delete_comment_meta( $comment->comment_ID, '_wp_trash_meta_status' );
 
 		/**
 		 * Fires immediately after a comment is restored from the Trash.
 		 *
 		 * @since 2.9.0
 		 * @since 4.9.0 Added the `$comment` parameter.
 		 *
 		 * @param int        $comment_id The comment ID.
 		 * @param WP_Comment $comment    The untrashed comment.
 		 */
 		do_action( 'untrashed_comment', $comment->comment_ID, $comment );
 
 		return true;
 	}
 
 	return false;
 }
 
 /**
  * Marks a comment as Spam
  *
  * @since 2.9.0
  *
  * @param int|WP_Comment $comment_id Comment ID or WP_Comment object.
  * @return bool True on success, false on failure.
  */
 function wp_spam_comment( $comment_id ) {
 	$comment = get_comment( $comment_id );
 	if ( ! $comment ) {
 		return false;
 	}
 
 	/**
 	 * Fires immediately before a comment is marked as Spam.
 	 *
 	 * @since 2.9.0
 	 * @since 4.9.0 Added the `$comment` parameter.
 	 *
 	 * @param int        $comment_id The comment ID.
 	 * @param WP_Comment $comment    The comment to be marked as spam.
 	 */
 	do_action( 'spam_comment', $comment->comment_ID, $comment );
 
 	if ( wp_set_comment_status( $comment, 'spam' ) ) {
 		delete_comment_meta( $comment->comment_ID, '_wp_trash_meta_status' );
 		delete_comment_meta( $comment->comment_ID, '_wp_trash_meta_time' );
 		add_comment_meta( $comment->comment_ID, '_wp_trash_meta_status', $comment->comment_approved );
 		add_comment_meta( $comment->comment_ID, '_wp_trash_meta_time', time() );
 
 		/**
 		 * Fires immediately after a comment is marked as Spam.
 		 *
 		 * @since 2.9.0
 		 * @since 4.9.0 Added the `$comment` parameter.
 		 *
 		 * @param int        $comment_id The comment ID.
 		 * @param WP_Comment $comment    The comment marked as spam.
 		 */
 		do_action( 'spammed_comment', $comment->comment_ID, $comment );
 
 		return true;
 	}
 
 	return false;
 }
 
 /**
  * Removes a comment from the Spam
  *
  * @since 2.9.0
  *
  * @param int|WP_Comment $comment_id Comment ID or WP_Comment object.
  * @return bool True on success, false on failure.
  */
 function wp_unspam_comment( $comment_id ) {
 	$comment = get_comment( $comment_id );
 	if ( ! $comment ) {
 		return false;
 	}
 
 	/**
 	 * Fires immediately before a comment is unmarked as Spam.
 	 *
 	 * @since 2.9.0
 	 * @since 4.9.0 Added the `$comment` parameter.
 	 *
 	 * @param int        $comment_id The comment ID.
 	 * @param WP_Comment $comment    The comment to be unmarked as spam.
 	 */
 	do_action( 'unspam_comment', $comment->comment_ID, $comment );
 
 	$status = (string) get_comment_meta( $comment->comment_ID, '_wp_trash_meta_status', true );
 	if ( empty( $status ) ) {
 		$status = '0';
 	}
 
 	if ( wp_set_comment_status( $comment, $status ) ) {
 		delete_comment_meta( $comment->comment_ID, '_wp_trash_meta_status' );
 		delete_comment_meta( $comment->comment_ID, '_wp_trash_meta_time' );
 
 		/**
 		 * Fires immediately after a comment is unmarked as Spam.
 		 *
 		 * @since 2.9.0
 		 * @since 4.9.0 Added the `$comment` parameter.
 		 *
 		 * @param int        $comment_id The comment ID.
 		 * @param WP_Comment $comment    The comment unmarked as spam.
 		 */
 		do_action( 'unspammed_comment', $comment->comment_ID, $comment );
 
 		return true;
 	}
 
 	return false;
 }
 
 /**
  * The status of a comment by ID.
  *
  * @since 1.0.0
  *
  * @param int|WP_Comment $comment_id Comment ID or WP_Comment object
  * @return string|false Status might be 'trash', 'approved', 'unapproved', 'spam'. False on failure.
  */
 function wp_get_comment_status( $comment_id ) {
 	$comment = get_comment( $comment_id );
 	if ( ! $comment ) {
 		return false;
 	}
 
 	$approved = $comment->comment_approved;
 
 	if ( null == $approved ) {
 		return false;
 	} elseif ( '1' == $approved ) {
 		return 'approved';
 	} elseif ( '0' == $approved ) {
 		return 'unapproved';
 	} elseif ( 'spam' === $approved ) {
 		return 'spam';
 	} elseif ( 'trash' === $approved ) {
 		return 'trash';
 	} else {
 		return false;
 	}
 }
 
 /**
  * Call hooks for when a comment status transition occurs.
  *
  * Calls hooks for comment status transitions. If the new comment status is not the same
  * as the previous comment status, then two hooks will be ran, the first is
  * {@see 'transition_comment_status'} with new status, old status, and comment data.
  * The next action called is {@see 'comment_$old_status_to_$new_status'}. It has
  * the comment data.
  *
  * The final action will run whether or not the comment statuses are the same.
  * The action is named {@see 'comment_$new_status_$comment->comment_type'}.
  *
  * @since 2.7.0
  *
  * @param string     $new_status New comment status.
  * @param string     $old_status Previous comment status.
  * @param WP_Comment $comment    Comment object.
  */
 function wp_transition_comment_status( $new_status, $old_status, $comment ) {
 	/*
 	 * Translate raw statuses to human-readable formats for the hooks.
 	 * This is not a complete list of comment status, it's only the ones
 	 * that need to be renamed.
 	 */
 	$comment_statuses = array(
 		0         => 'unapproved',
 		'hold'    => 'unapproved', // wp_set_comment_status() uses "hold".
 		1         => 'approved',
 		'approve' => 'approved',   // wp_set_comment_status() uses "approve".
 	);
 	if ( isset( $comment_statuses[ $new_status ] ) ) {
 		$new_status = $comment_statuses[ $new_status ];
 	}
 	if ( isset( $comment_statuses[ $old_status ] ) ) {
 		$old_status = $comment_statuses[ $old_status ];
 	}
 
 	// Call the hooks.
 	if ( $new_status != $old_status ) {
 		/**
 		 * Fires when the comment status is in transition.
 		 *
 		 * @since 2.7.0
 		 *
 		 * @param int|string $new_status The new comment status.
 		 * @param int|string $old_status The old comment status.
 		 * @param WP_Comment $comment    Comment object.
 		 */
 		do_action( 'transition_comment_status', $new_status, $old_status, $comment );
 		/**
 		 * Fires when the comment status is in transition from one specific status to another.
 		 *
 		 * The dynamic portions of the hook name, `$old_status`, and `$new_status`,
 		 * refer to the old and new comment statuses, respectively.
 		 *
 		 * @since 2.7.0
 		 *
 		 * @param WP_Comment $comment Comment object.
 		 */
 		do_action( "comment_{$old_status}_to_{$new_status}", $comment );
 	}
 	/**
 	 * Fires when the status of a specific comment type is in transition.
 	 *
 	 * The dynamic portions of the hook name, `$new_status`, and `$comment->comment_type`,
 	 * refer to the new comment status, and the type of comment, respectively.
 	 *
 	 * Typical comment types include an empty string (standard comment), 'pingback',
 	 * or 'trackback'.
 	 *
 	 * @since 2.7.0
 	 *
 	 * @param int        $comment_ID The comment ID.
 	 * @param WP_Comment $comment    Comment object.
 	 */
 	do_action( "comment_{$new_status}_{$comment->comment_type}", $comment->comment_ID, $comment );
 }
 
 /**
  * Clear the lastcommentmodified cached value when a comment status is changed.
  *
  * Deletes the lastcommentmodified cache key when a comment enters or leaves
  * 'approved' status.
  *
  * @since 4.7.0
  * @access private
  *
  * @param string $new_status The new comment status.
  * @param string $old_status The old comment status.
  */
 function _clear_modified_cache_on_transition_comment_status( $new_status, $old_status ) {
 	if ( 'approved' === $new_status || 'approved' === $old_status ) {
 		foreach ( array( 'server', 'gmt', 'blog' ) as $timezone ) {
 			wp_cache_delete( "lastcommentmodified:$timezone", 'timeinfo' );
 		}
 	}
 }
 
 /**
  * Get current commenter's name, email, and URL.
  *
  * Expects cookies content to already be sanitized. User of this function might
  * wish to recheck the returned array for validity.
  *
  * @see sanitize_comment_cookies() Use to sanitize cookies
  *
  * @since 2.0.4
  *
  * @return array {
  *     An array of current commenter variables.
  *
  *     @type string $comment_author       The name of the current commenter, or an empty string.
  *     @type string $comment_author_email The email address of the current commenter, or an empty string.
  *     @type string $comment_author_url   The URL address of the current commenter, or an empty string.
  * }
  */
 function wp_get_current_commenter() {
 	// Cookies should already be sanitized.
 
 	$comment_author = '';
 	if ( isset( $_COOKIE[ 'comment_author_' . COOKIEHASH ] ) ) {
 		$comment_author = $_COOKIE[ 'comment_author_' . COOKIEHASH ];
 	}
 
 	$comment_author_email = '';
 	if ( isset( $_COOKIE[ 'comment_author_email_' . COOKIEHASH ] ) ) {
 		$comment_author_email = $_COOKIE[ 'comment_author_email_' . COOKIEHASH ];
 	}
 
 	$comment_author_url = '';
 	if ( isset( $_COOKIE[ 'comment_author_url_' . COOKIEHASH ] ) ) {
 		$comment_author_url = $_COOKIE[ 'comment_author_url_' . COOKIEHASH ];
 	}
 
 	/**
 	 * Filters the current commenter's name, email, and URL.
 	 *
 	 * @since 3.1.0
 	 *
 	 * @param array $comment_author_data {
 	 *     An array of current commenter variables.
 	 *
 	 *     @type string $comment_author       The name of the current commenter, or an empty string.
 	 *     @type string $comment_author_email The email address of the current commenter, or an empty string.
 	 *     @type string $comment_author_url   The URL address of the current commenter, or an empty string.
 	 * }
 	 */
 	return apply_filters( 'wp_get_current_commenter', compact( 'comment_author', 'comment_author_email', 'comment_author_url' ) );
 }
 
 /**
  * Get unapproved comment author's email.
  *
  * Used to allow the commenter to see their pending comment.
  *
  * @since 5.1.0
  * @since 5.7.0 The window within which the author email for an unapproved comment
  *              can be retrieved was extended to 10 minutes.
  *
  * @return string The unapproved comment author's email (when supplied).
  */
 function wp_get_unapproved_comment_author_email() {
 	$commenter_email = '';
 
 	if ( ! empty( $_GET['unapproved'] ) && ! empty( $_GET['moderation-hash'] ) ) {
 		$comment_id = (int) $_GET['unapproved'];
 		$comment    = get_comment( $comment_id );
 
 		if ( $comment && hash_equals( $_GET['moderation-hash'], wp_hash( $comment->comment_date_gmt ) ) ) {
 			// The comment will only be viewable by the comment author for 10 minutes.
 			$comment_preview_expires = strtotime( $comment->comment_date_gmt . '+10 minutes' );
 
 			if ( time() < $comment_preview_expires ) {
 				$commenter_email = $comment->comment_author_email;
 			}
 		}
 	}
 
 	if ( ! $commenter_email ) {
 		$commenter       = wp_get_current_commenter();
 		$commenter_email = $commenter['comment_author_email'];
 	}
 
 	return $commenter_email;
 }
 
 /**
  * Inserts a comment into the database.
  *
  * @since 2.0.0
  * @since 4.4.0 Introduced the `$comment_meta` argument.
  * @since 5.5.0 Default value for `$comment_type` argument changed to `comment`.
  *
  * @global wpdb $wpdb WordPress database abstraction object.
  *
  * @param array $commentdata {
  *     Array of arguments for inserting a new comment.
  *
  *     @type string     $comment_agent        The HTTP user agent of the `$comment_author` when
  *                                            the comment was submitted. Default empty.
  *     @type int|string $comment_approved     Whether the comment has been approved. Default 1.
  *     @type string     $comment_author       The name of the author of the comment. Default empty.
  *     @type string     $comment_author_email The email address of the `$comment_author`. Default empty.
  *     @type string     $comment_author_IP    The IP address of the `$comment_author`. Default empty.
  *     @type string     $comment_author_url   The URL address of the `$comment_author`. Default empty.
  *     @type string     $comment_content      The content of the comment. Default empty.
  *     @type string     $comment_date         The date the comment was submitted. To set the date
  *                                            manually, `$comment_date_gmt` must also be specified.
  *                                            Default is the current time.
  *     @type string     $comment_date_gmt     The date the comment was submitted in the GMT timezone.
  *                                            Default is `$comment_date` in the site's GMT timezone.
  *     @type int        $comment_karma        The karma of the comment. Default 0.
  *     @type int        $comment_parent       ID of this comment's parent, if any. Default 0.
  *     @type int        $comment_post_ID      ID of the post that relates to the comment, if any.
  *                                            Default 0.
  *     @type string     $comment_type         Comment type. Default 'comment'.
  *     @type array      $comment_meta         Optional. Array of key/value pairs to be stored in commentmeta for the
  *                                            new comment.
  *     @type int        $user_id              ID of the user who submitted the comment. Default 0.
  * }
  * @return int|false The new comment's ID on success, false on failure.
  */
 function wp_insert_comment( $commentdata ) {
 	global $wpdb;
 	$data = wp_unslash( $commentdata );
 
 	$comment_author       = ! isset( $data['comment_author'] ) ? '' : $data['comment_author'];
 	$comment_author_email = ! isset( $data['comment_author_email'] ) ? '' : $data['comment_author_email'];
 	$comment_author_url   = ! isset( $data['comment_author_url'] ) ? '' : $data['comment_author_url'];
 	$comment_author_IP    = ! isset( $data['comment_author_IP'] ) ? '' : $data['comment_author_IP'];
 
 	$comment_date     = ! isset( $data['comment_date'] ) ? current_time( 'mysql' ) : $data['comment_date'];
 	$comment_date_gmt = ! isset( $data['comment_date_gmt'] ) ? get_gmt_from_date( $comment_date ) : $data['comment_date_gmt'];
 
 	$comment_post_ID  = ! isset( $data['comment_post_ID'] ) ? 0 : $data['comment_post_ID'];
 	$comment_content  = ! isset( $data['comment_content'] ) ? '' : $data['comment_content'];
 	$comment_karma    = ! isset( $data['comment_karma'] ) ? 0 : $data['comment_karma'];
 	$comment_approved = ! isset( $data['comment_approved'] ) ? 1 : $data['comment_approved'];
 	$comment_agent    = ! isset( $data['comment_agent'] ) ? '' : $data['comment_agent'];
 	$comment_type     = empty( $data['comment_type'] ) ? 'comment' : $data['comment_type'];
 	$comment_parent   = ! isset( $data['comment_parent'] ) ? 0 : $data['comment_parent'];
 
 	$user_id = ! isset( $data['user_id'] ) ? 0 : $data['user_id'];
 
 	$compacted = compact( 'comment_post_ID', 'comment_author', 'comment_author_email', 'comment_author_url', 'comment_author_IP', 'comment_date', 'comment_date_gmt', 'comment_content', 'comment_karma', 'comment_approved', 'comment_agent', 'comment_type', 'comment_parent', 'user_id' );
 	if ( ! $wpdb->insert( $wpdb->comments, $compacted ) ) {
 		return false;
 	}
 
 	$id = (int) $wpdb->insert_id;
 
 	if ( 1 == $comment_approved ) {
 		wp_update_comment_count( $comment_post_ID );
 
 		foreach ( array( 'server', 'gmt', 'blog' ) as $timezone ) {
 			wp_cache_delete( "lastcommentmodified:$timezone", 'timeinfo' );
 		}
 	}
 
 	clean_comment_cache( $id );
 
 	$comment = get_comment( $id );
 
 	// If metadata is provided, store it.
 	if ( isset( $commentdata['comment_meta'] ) && is_array( $commentdata['comment_meta'] ) ) {
 		foreach ( $commentdata['comment_meta'] as $meta_key => $meta_value ) {
 			add_comment_meta( $comment->comment_ID, $meta_key, $meta_value, true );
 		}
 	}
 
 	/**
 	 * Fires immediately after a comment is inserted into the database.
 	 *
 	 * @since 2.8.0
 	 *
 	 * @param int        $id      The comment ID.
 	 * @param WP_Comment $comment Comment object.
 	 */
 	do_action( 'wp_insert_comment', $id, $comment );
 
 	return $id;
 }
 
 /**
  * Filters and sanitizes comment data.
  *
  * Sets the comment data 'filtered' field to true when finished. This can be
  * checked as to whether the comment should be filtered and to keep from
  * filtering the same comment more than once.
  *
  * @since 2.0.0
  *
  * @param array $commentdata Contains information on the comment.
  * @return array Parsed comment information.
  */
 function wp_filter_comment( $commentdata ) {
 	if ( isset( $commentdata['user_ID'] ) ) {
 		/**
 		 * Filters the comment author's user ID before it is set.
 		 *
 		 * The first time this filter is evaluated, 'user_ID' is checked
 		 * (for back-compat), followed by the standard 'user_id' value.
 		 *
 		 * @since 1.5.0
 		 *
 		 * @param int $user_ID The comment author's user ID.
 		 */
 		$commentdata['user_id'] = apply_filters( 'pre_user_id', $commentdata['user_ID'] );
 	} elseif ( isset( $commentdata['user_id'] ) ) {
 		/** This filter is documented in wp-includes/comment.php */
 		$commentdata['user_id'] = apply_filters( 'pre_user_id', $commentdata['user_id'] );
 	}
 
 	/**
 	 * Filters the comment author's browser user agent before it is set.
 	 *
 	 * @since 1.5.0
 	 *
 	 * @param string $comment_agent The comment author's browser user agent.
 	 */
 	$commentdata['comment_agent'] = apply_filters( 'pre_comment_user_agent', ( isset( $commentdata['comment_agent'] ) ? $commentdata['comment_agent'] : '' ) );
 	/** This filter is documented in wp-includes/comment.php */
 	$commentdata['comment_author'] = apply_filters( 'pre_comment_author_name', $commentdata['comment_author'] );
 	/**
 	 * Filters the comment content before it is set.
 	 *
 	 * @since 1.5.0
 	 *
 	 * @param string $comment_content The comment content.
 	 */
 	$commentdata['comment_content'] = apply_filters( 'pre_comment_content', $commentdata['comment_content'] );
 	/**
 	 * Filters the comment author's IP address before it is set.
 	 *
 	 * @since 1.5.0
 	 *
 	 * @param string $comment_author_ip The comment author's IP address.
 	 */
 	$commentdata['comment_author_IP'] = apply_filters( 'pre_comment_user_ip', $commentdata['comment_author_IP'] );
 	/** This filter is documented in wp-includes/comment.php */
 	$commentdata['comment_author_url'] = apply_filters( 'pre_comment_author_url', $commentdata['comment_author_url'] );
 	/** This filter is documented in wp-includes/comment.php */
 	$commentdata['comment_author_email'] = apply_filters( 'pre_comment_author_email', $commentdata['comment_author_email'] );
 	$commentdata['filtered']             = true;
 	return $commentdata;
 }
 
 /**
  * Whether a comment should be blocked because of comment flood.
  *
  * @since 2.1.0
  *
  * @param bool $block            Whether plugin has already blocked comment.
  * @param int  $time_lastcomment Timestamp for last comment.
  * @param int  $time_newcomment  Timestamp for new comment.
  * @return bool Whether comment should be blocked.
  */
 function wp_throttle_comment_flood( $block, $time_lastcomment, $time_newcomment ) {
 	if ( $block ) { // A plugin has already blocked... we'll let that decision stand.
 		return $block;
 	}
 	if ( ( $time_newcomment - $time_lastcomment ) < 15 ) {
 		return true;
 	}
 	return false;
 }
 
 /**
  * Adds a new comment to the database.
  *
  * Filters new comment to ensure that the fields are sanitized and valid before
  * inserting comment into database. Calls {@see 'comment_post'} action with comment ID
  * and whether comment is approved by WordPress. Also has {@see 'preprocess_comment'}
  * filter for processing the comment data before the function handles it.
  *
  * We use `REMOTE_ADDR` here directly. If you are behind a proxy, you should ensure
  * that it is properly set, such as in wp-config.php, for your environment.
  *
  * See {@link https://core.trac.wordpress.org/ticket/9235}
  *
  * @since 1.5.0
  * @since 4.3.0 Introduced the `comment_agent` and `comment_author_IP` arguments.
  * @since 4.7.0 The `$avoid_die` parameter was added, allowing the function
  *              to return a WP_Error object instead of dying.
  * @since 5.5.0 The `$avoid_die` parameter was renamed to `$wp_error`.
  * @since 5.5.0 Introduced the `comment_type` argument.
  *
  * @see wp_insert_comment()
  * @global wpdb $wpdb WordPress database abstraction object.
  *
  * @param array $commentdata {
  *     Comment data.
  *
  *     @type string $comment_author       The name of the comment author.
  *     @type string $comment_author_email The comment author email address.
  *     @type string $comment_author_url   The comment author URL.
  *     @type string $comment_content      The content of the comment.
  *     @type string $comment_date         The date the comment was submitted. Default is the current time.
  *     @type string $comment_date_gmt     The date the comment was submitted in the GMT timezone.
  *                                        Default is `$comment_date` in the GMT timezone.
  *     @type string $comment_type         Comment type. Default 'comment'.
  *     @type int    $comment_parent       The ID of this comment's parent, if any. Default 0.
  *     @type int    $comment_post_ID      The ID of the post that relates to the comment.
  *     @type int    $user_id              The ID of the user who submitted the comment. Default 0.
  *     @type int    $user_ID              Kept for backward-compatibility. Use `$user_id` instead.
  *     @type string $comment_agent        Comment author user agent. Default is the value of 'HTTP_USER_AGENT'
  *                                        in the `$_SERVER` superglobal sent in the original request.
  *     @type string $comment_author_IP    Comment author IP address in IPv4 format. Default is the value of
  *                                        'REMOTE_ADDR' in the `$_SERVER` superglobal sent in the original request.
  * }
  * @param bool  $wp_error Should errors be returned as WP_Error objects instead of
  *                        executing wp_die()? Default false.
  * @return int|false|WP_Error The ID of the comment on success, false or WP_Error on failure.
  */
 function wp_new_comment( $commentdata, $wp_error = false ) {
 	global $wpdb;
 
 	if ( isset( $commentdata['user_ID'] ) ) {
 		$commentdata['user_ID'] = (int) $commentdata['user_ID'];
 		$commentdata['user_id'] = $commentdata['user_ID'];
 	}
 
 	$prefiltered_user_id = ( isset( $commentdata['user_id'] ) ) ? (int) $commentdata['user_id'] : 0;
 
 	if ( ! isset( $commentdata['comment_author_IP'] ) ) {
 		$commentdata['comment_author_IP'] = $_SERVER['REMOTE_ADDR'];
 	}
 
 	if ( ! isset( $commentdata['comment_agent'] ) ) {
 		$commentdata['comment_agent'] = isset( $_SERVER['HTTP_USER_AGENT'] ) ? $_SERVER['HTTP_USER_AGENT'] : '';
 	}
 
 	/**
 	 * Filters a comment's data before it is sanitized and inserted into the database.
 	 *
 	 * @since 1.5.0
 	 * @since 5.6.0 Comment data includes the `comment_agent` and `comment_author_IP` values.
 	 *
 	 * @param array $commentdata Comment data.
 	 */
 	$commentdata = apply_filters( 'preprocess_comment', $commentdata );
 
 	$commentdata['comment_post_ID'] = (int) $commentdata['comment_post_ID'];
 	if ( isset( $commentdata['user_ID'] ) && $prefiltered_user_id !== (int) $commentdata['user_ID'] ) {
 		$commentdata['user_ID'] = (int) $commentdata['user_ID'];
 		$commentdata['user_id'] = $commentdata['user_ID'];
 	} elseif ( isset( $commentdata['user_id'] ) ) {
 		$commentdata['user_id'] = (int) $commentdata['user_id'];
 	}
 
 	$commentdata['comment_parent'] = isset( $commentdata['comment_parent'] ) ? absint( $commentdata['comment_parent'] ) : 0;
 
 	$parent_status = ( $commentdata['comment_parent'] > 0 ) ? wp_get_comment_status( $commentdata['comment_parent'] ) : '';
 
 	$commentdata['comment_parent'] = ( 'approved' === $parent_status || 'unapproved' === $parent_status ) ? $commentdata['comment_parent'] : 0;
 
 	$commentdata['comment_author_IP'] = preg_replace( '/[^0-9a-fA-F:., ]/', '', $commentdata['comment_author_IP'] );
 
 	$commentdata['comment_agent'] = substr( $commentdata['comment_agent'], 0, 254 );
 
 	if ( empty( $commentdata['comment_date'] ) ) {
 		$commentdata['comment_date'] = current_time( 'mysql' );
 	}
 
 	if ( empty( $commentdata['comment_date_gmt'] ) ) {
 		$commentdata['comment_date_gmt'] = current_time( 'mysql', 1 );
 	}
 
 	if ( empty( $commentdata['comment_type'] ) ) {
 		$commentdata['comment_type'] = 'comment';
 	}
 
 	$commentdata = wp_filter_comment( $commentdata );
 
 	$commentdata['comment_approved'] = wp_allow_comment( $commentdata, $wp_error );
 	if ( is_wp_error( $commentdata['comment_approved'] ) ) {
 		return $commentdata['comment_approved'];
 	}
 
 	$comment_ID = wp_insert_comment( $commentdata );
 	if ( ! $comment_ID ) {
 		$fields = array( 'comment_author', 'comment_author_email', 'comment_author_url', 'comment_content' );
 
 		foreach ( $fields as $field ) {
 			if ( isset( $commentdata[ $field ] ) ) {
 				$commentdata[ $field ] = $wpdb->strip_invalid_text_for_column( $wpdb->comments, $field, $commentdata[ $field ] );
 			}
 		}
 
 		$commentdata = wp_filter_comment( $commentdata );
 
 		$commentdata['comment_approved'] = wp_allow_comment( $commentdata, $wp_error );
 		if ( is_wp_error( $commentdata['comment_approved'] ) ) {
 			return $commentdata['comment_approved'];
 		}
 
 		$comment_ID = wp_insert_comment( $commentdata );
 		if ( ! $comment_ID ) {
 			return false;
 		}
 	}
 
 	/**
 	 * Fires immediately after a comment is inserted into the database.
 	 *
 	 * @since 1.2.0
 	 * @since 4.5.0 The `$commentdata` parameter was added.
 	 *
 	 * @param int        $comment_ID       The comment ID.
 	 * @param int|string $comment_approved 1 if the comment is approved, 0 if not, 'spam' if spam.
 	 * @param array      $commentdata      Comment data.
 	 */
 	do_action( 'comment_post', $comment_ID, $commentdata['comment_approved'], $commentdata );
 
 	return $comment_ID;
 }
 
 /**
  * Send a comment moderation notification to the comment moderator.
  *
  * @since 4.4.0
  *
  * @param int $comment_ID ID of the comment.
  * @return bool True on success, false on failure.
  */
 function wp_new_comment_notify_moderator( $comment_ID ) {
 	$comment = get_comment( $comment_ID );
 
 	// Only send notifications for pending comments.
 	$maybe_notify = ( '0' == $comment->comment_approved );
 
 	/** This filter is documented in wp-includes/comment.php */
 	$maybe_notify = apply_filters( 'notify_moderator', $maybe_notify, $comment_ID );
 
 	if ( ! $maybe_notify ) {
 		return false;
 	}
 
 	return wp_notify_moderator( $comment_ID );
 }
 
 /**
  * Send a notification of a new comment to the post author.
  *
  * @since 4.4.0
  *
  * Uses the {@see 'notify_post_author'} filter to determine whether the post author
  * should be notified when a new comment is added, overriding site setting.
  *
  * @param int $comment_ID Comment ID.
  * @return bool True on success, false on failure.
  */
 function wp_new_comment_notify_postauthor( $comment_ID ) {
 	$comment = get_comment( $comment_ID );
 
 	$maybe_notify = get_option( 'comments_notify' );
 
 	/**
 	 * Filters whether to send the post author new comment notification emails,
 	 * overriding the site setting.
 	 *
 	 * @since 4.4.0
 	 *
 	 * @param bool $maybe_notify Whether to notify the post author about the new comment.
 	 * @param int  $comment_ID   The ID of the comment for the notification.
 	 */
 	$maybe_notify = apply_filters( 'notify_post_author', $maybe_notify, $comment_ID );
 
 	/*
 	 * wp_notify_postauthor() checks if notifying the author of their own comment.
 	 * By default, it won't, but filters can override this.
 	 */
 	if ( ! $maybe_notify ) {
 		return false;
 	}
 
 	// Only send notifications for approved comments.
 	if ( ! isset( $comment->comment_approved ) || '1' != $comment->comment_approved ) {
 		return false;
 	}
 
 	return wp_notify_postauthor( $comment_ID );
 }
 
 /**
  * Sets the status of a comment.
  *
  * The {@see 'wp_set_comment_status'} action is called after the comment is handled.
  * If the comment status is not in the list, then false is returned.
  *
  * @since 1.0.0
  *
  * @global wpdb $wpdb WordPress database abstraction object.
  *
  * @param int|WP_Comment $comment_id     Comment ID or WP_Comment object.
  * @param string         $comment_status New comment status, either 'hold', 'approve', 'spam', or 'trash'.
  * @param bool           $wp_error       Whether to return a WP_Error object if there is a failure. Default false.
  * @return bool|WP_Error True on success, false or WP_Error on failure.
  */
 function wp_set_comment_status( $comment_id, $comment_status, $wp_error = false ) {
 	global $wpdb;
 
 	switch ( $comment_status ) {
 		case 'hold':
 		case '0':
 			$status = '0';
 			break;
 		case 'approve':
 		case '1':
 			$status = '1';
 			add_action( 'wp_set_comment_status', 'wp_new_comment_notify_postauthor' );
 			break;
 		case 'spam':
 			$status = 'spam';
 			break;
 		case 'trash':
 			$status = 'trash';
 			break;
 		default:
 			return false;
 	}
 
 	$comment_old = clone get_comment( $comment_id );
 
 	if ( ! $wpdb->update( $wpdb->comments, array( 'comment_approved' => $status ), array( 'comment_ID' => $comment_old->comment_ID ) ) ) {
 		if ( $wp_error ) {
 			return new WP_Error( 'db_update_error', __( 'Could not update comment status.' ), $wpdb->last_error );
 		} else {
 			return false;
 		}
 	}
 
 	clean_comment_cache( $comment_old->comment_ID );
 
 	$comment = get_comment( $comment_old->comment_ID );
 
 	/**
 	 * Fires immediately after transitioning a comment's status from one to another in the database
 	 * and removing the comment from the object cache, but prior to all status transition hooks.
 	 *
 	 * @since 1.5.0
 	 *
 	 * @param int    $comment_id     Comment ID.
 	 * @param string $comment_status Current comment status. Possible values include
 	 *                               'hold', '0', 'approve', '1', 'spam', and 'trash'.
 	 */
 	do_action( 'wp_set_comment_status', $comment->comment_ID, $comment_status );
 
 	wp_transition_comment_status( $comment_status, $comment_old->comment_approved, $comment );
 
 	wp_update_comment_count( $comment->comment_post_ID );
 
 	return true;
 }
 
 /**
  * Updates an existing comment in the database.
  *
  * Filters the comment and makes sure certain fields are valid before updating.
  *
  * @since 2.0.0
  * @since 4.9.0 Add updating comment meta during comment update.
  * @since 5.5.0 The `$wp_error` parameter was added.
  * @since 5.5.0 The return values for an invalid comment or post ID
  *              were changed to false instead of 0.
  *
  * @global wpdb $wpdb WordPress database abstraction object.
  *
  * @param array $commentarr Contains information on the comment.
  * @param bool  $wp_error   Optional. Whether to return a WP_Error on failure. Default false.
  * @return int|false|WP_Error The value 1 if the comment was updated, 0 if not updated.
  *                            False or a WP_Error object on failure.
  */
 function wp_update_comment( $commentarr, $wp_error = false ) {
 	global $wpdb;
 
 	// First, get all of the original fields.
 	$comment = get_comment( $commentarr['comment_ID'], ARRAY_A );
 	if ( empty( $comment ) ) {
 		if ( $wp_error ) {
 			return new WP_Error( 'invalid_comment_id', __( 'Invalid comment ID.' ) );
 		} else {
 			return false;
 		}
 	}
 
 	// Make sure that the comment post ID is valid (if specified).
 	if ( ! empty( $commentarr['comment_post_ID'] ) && ! get_post( $commentarr['comment_post_ID'] ) ) {
 		if ( $wp_error ) {
 			return new WP_Error( 'invalid_post_id', __( 'Invalid post ID.' ) );
 		} else {
 			return false;
 		}
 	}
 
 	// Escape data pulled from DB.
 	$comment = wp_slash( $comment );
 
 	$old_status = $comment['comment_approved'];
 
 	// Merge old and new fields with new fields overwriting old ones.
 	$commentarr = array_merge( $comment, $commentarr );
 
 	$commentarr = wp_filter_comment( $commentarr );
 
 	// Now extract the merged array.
 	$data = wp_unslash( $commentarr );
 
 	/**
 	 * Filters the comment content before it is updated in the database.
 	 *
 	 * @since 1.5.0
 	 *
 	 * @param string $comment_content The comment data.
 	 */
 	$data['comment_content'] = apply_filters( 'comment_save_pre', $data['comment_content'] );
 
 	$data['comment_date_gmt'] = get_gmt_from_date( $data['comment_date'] );
 
 	if ( ! isset( $data['comment_approved'] ) ) {
 		$data['comment_approved'] = 1;
 	} elseif ( 'hold' === $data['comment_approved'] ) {
 		$data['comment_approved'] = 0;
 	} elseif ( 'approve' === $data['comment_approved'] ) {
 		$data['comment_approved'] = 1;
 	}
 
 	$comment_ID      = $data['comment_ID'];
 	$comment_post_ID = $data['comment_post_ID'];
 
 	/**
 	 * Filters the comment data immediately before it is updated in the database.
 	 *
 	 * Note: data being passed to the filter is already unslashed.
 	 *
 	 * @since 4.7.0
 	 * @since 5.5.0 Returning a WP_Error value from the filter will short-circuit comment update
 	 *              and allow skipping further processing.
 	 *
 	 * @param array|WP_Error $data       The new, processed comment data, or WP_Error.
 	 * @param array          $comment    The old, unslashed comment data.
 	 * @param array          $commentarr The new, raw comment data.
 	 */
 	$data = apply_filters( 'wp_update_comment_data', $data, $comment, $commentarr );
 
 	// Do not carry on on failure.
 	if ( is_wp_error( $data ) ) {
 		if ( $wp_error ) {
 			return $data;
 		} else {
 			return false;
 		}
 	}
 
 	$keys = array( 'comment_post_ID', 'comment_content', 'comment_author', 'comment_author_email', 'comment_approved', 'comment_karma', 'comment_author_url', 'comment_date', 'comment_date_gmt', 'comment_type', 'comment_parent', 'user_id', 'comment_agent', 'comment_author_IP' );
 	$data = wp_array_slice_assoc( $data, $keys );
 
 	$rval = $wpdb->update( $wpdb->comments, $data, compact( 'comment_ID' ) );
 
 	if ( false === $rval ) {
 		if ( $wp_error ) {
 			return new WP_Error( 'db_update_error', __( 'Could not update comment in the database.' ), $wpdb->last_error );
 		} else {
 			return false;
 		}
 	}
 
 	// If metadata is provided, store it.
 	if ( isset( $commentarr['comment_meta'] ) && is_array( $commentarr['comment_meta'] ) ) {
 		foreach ( $commentarr['comment_meta'] as $meta_key => $meta_value ) {
 			update_comment_meta( $comment_ID, $meta_key, $meta_value );
 		}
 	}
 
 	clean_comment_cache( $comment_ID );
 	wp_update_comment_count( $comment_post_ID );
 
 	/**
 	 * Fires immediately after a comment is updated in the database.
 	 *
 	 * The hook also fires immediately before comment status transition hooks are fired.
 	 *
 	 * @since 1.2.0
 	 * @since 4.6.0 Added the `$data` parameter.
 	 *
 	 * @param int   $comment_ID The comment ID.
 	 * @param array $data       Comment data.
 	 */
 	do_action( 'edit_comment', $comment_ID, $data );
 
 	$comment = get_comment( $comment_ID );
 
 	wp_transition_comment_status( $comment->comment_approved, $old_status, $comment );
 
 	return $rval;
 }
 
 /**
  * Whether to defer comment counting.
  *
  * When setting $defer to true, all post comment counts will not be updated
  * until $defer is set to false. When $defer is set to false, then all
  * previously deferred updated post comment counts will then be automatically
  * updated without having to call wp_update_comment_count() after.
  *
  * @since 2.5.0
  *
  * @param bool $defer
  * @return bool
  */
 function wp_defer_comment_counting( $defer = null ) {
 	static $_defer = false;
 
 	if ( is_bool( $defer ) ) {
 		$_defer = $defer;
 		// Flush any deferred counts.
 		if ( ! $defer ) {
 			wp_update_comment_count( null, true );
 		}
 	}
 
 	return $_defer;
 }
 
 /**
  * Updates the comment count for post(s).
  *
  * When $do_deferred is false (is by default) and the comments have been set to
  * be deferred, the post_id will be added to a queue, which will be updated at a
  * later date and only updated once per post ID.
  *
  * If the comments have not be set up to be deferred, then the post will be
  * updated. When $do_deferred is set to true, then all previous deferred post
  * IDs will be updated along with the current $post_id.
  *
  * @since 2.1.0
  *
  * @see wp_update_comment_count_now() For what could cause a false return value
  *
  * @param int|null $post_id     Post ID.
  * @param bool     $do_deferred Optional. Whether to process previously deferred
  *                              post comment counts. Default false.
  * @return bool|void True on success, false on failure or if post with ID does
  *                   not exist.
  */
 function wp_update_comment_count( $post_id, $do_deferred = false ) {
 	static $_deferred = array();
 
 	if ( empty( $post_id ) && ! $do_deferred ) {
 		return false;
 	}
 
 	if ( $do_deferred ) {
 		$_deferred = array_unique( $_deferred );
 		foreach ( $_deferred as $i => $_post_id ) {
 			wp_update_comment_count_now( $_post_id );
 			unset( $_deferred[ $i ] );
 			/** @todo Move this outside of the foreach and reset $_deferred to an array instead */
 		}
 	}
 
 	if ( wp_defer_comment_counting() ) {
 		$_deferred[] = $post_id;
 		return true;
 	} elseif ( $post_id ) {
 		return wp_update_comment_count_now( $post_id );
 	}
 
 }
 
 /**
  * Updates the comment count for the post.
  *
  * @since 2.5.0
  *
  * @global wpdb $wpdb WordPress database abstraction object.
  *
  * @param int $post_id Post ID
  * @return bool True on success, false if the post does not exist.
  */
 function wp_update_comment_count_now( $post_id ) {
 	global $wpdb;
 	$post_id = (int) $post_id;
 	if ( ! $post_id ) {
 		return false;
 	}
 
 	wp_cache_delete( 'comments-0', 'counts' );
 	wp_cache_delete( "comments-{$post_id}", 'counts' );
 
 	$post = get_post( $post_id );
 	if ( ! $post ) {
 		return false;
 	}
 
 	$old = (int) $post->comment_count;
 
 	/**
 	 * Filters a post's comment count before it is updated in the database.
 	 *
 	 * @since 4.5.0
 	 *
 	 * @param int|null $new     The new comment count. Default null.
 	 * @param int      $old     The old comment count.
 	 * @param int      $post_id Post ID.
 	 */
 	$new = apply_filters( 'pre_wp_update_comment_count_now', null, $old, $post_id );
 
 	if ( is_null( $new ) ) {
 		$new = (int) $wpdb->get_var( $wpdb->prepare( "SELECT COUNT(*) FROM $wpdb->comments WHERE comment_post_ID = %d AND comment_approved = '1'", $post_id ) );
 	} else {
 		$new = (int) $new;
 	}
 
 	$wpdb->update( $wpdb->posts, array( 'comment_count' => $new ), array( 'ID' => $post_id ) );
 
 	clean_post_cache( $post );
 
 	/**
 	 * Fires immediately after a post's comment count is updated in the database.
 	 *
 	 * @since 2.3.0
 	 *
 	 * @param int $post_id Post ID.
 	 * @param int $new     The new comment count.
 	 * @param int $old     The old comment count.
 	 */
 	do_action( 'wp_update_comment_count', $post_id, $new, $old );
 
 	/** This action is documented in wp-includes/post.php */
 	do_action( "edit_post_{$post->post_type}", $post_id, $post );
 
 	/** This action is documented in wp-includes/post.php */
 	do_action( 'edit_post', $post_id, $post );
 
 	return true;
 }
 
 //
 // Ping and trackback functions.
 //
 
 /**
  * Finds a pingback server URI based on the given URL.
  *
  * Checks the HTML for the rel="pingback" link and x-pingback headers. It does
  * a check for the x-pingback headers first and returns that, if available. The
  * check for the rel="pingback" has more overhead than just the header.
  *
  * @since 1.5.0
  *
  * @param string $url        URL to ping.
  * @param string $deprecated Not Used.
  * @return string|false String containing URI on success, false on failure.
  */
 function discover_pingback_server_uri( $url, $deprecated = '' ) {
 	if ( ! empty( $deprecated ) ) {
 		_deprecated_argument( __FUNCTION__, '2.7.0' );
 	}
 
 	$pingback_str_dquote = 'rel="pingback"';
 	$pingback_str_squote = 'rel=\'pingback\'';
 
 	/** @todo Should use Filter Extension or custom preg_match instead. */
 	$parsed_url = parse_url( $url );
 
 	if ( ! isset( $parsed_url['host'] ) ) { // Not a URL. This should never happen.
 		return false;
 	}
 
 	// Do not search for a pingback server on our own uploads.
 	$uploads_dir = wp_get_upload_dir();
 	if ( 0 === strpos( $url, $uploads_dir['baseurl'] ) ) {
 		return false;
 	}
 
 	$response = wp_safe_remote_head(
 		$url,
 		array(
 			'timeout'     => 2,
 			'httpversion' => '1.0',
 		)
 	);
 
 	if ( is_wp_error( $response ) ) {
 		return false;
 	}
 
 	if ( wp_remote_retrieve_header( $response, 'x-pingback' ) ) {
 		return wp_remote_retrieve_header( $response, 'x-pingback' );
 	}
 
 	// Not an (x)html, sgml, or xml page, no use going further.
 	if ( preg_match( '#(image|audio|video|model)/#is', wp_remote_retrieve_header( $response, 'content-type' ) ) ) {
 		return false;
 	}
 
 	// Now do a GET since we're going to look in the HTML headers (and we're sure it's not a binary file).
 	$response = wp_safe_remote_get(
 		$url,
 		array(
 			'timeout'     => 2,
 			'httpversion' => '1.0',
 		)
 	);
 
 	if ( is_wp_error( $response ) ) {
 		return false;
 	}
 
 	$contents = wp_remote_retrieve_body( $response );
 
 	$pingback_link_offset_dquote = strpos( $contents, $pingback_str_dquote );
 	$pingback_link_offset_squote = strpos( $contents, $pingback_str_squote );
 	if ( $pingback_link_offset_dquote || $pingback_link_offset_squote ) {
 		$quote                   = ( $pingback_link_offset_dquote ) ? '"' : '\'';
 		$pingback_link_offset    = ( '"' === $quote ) ? $pingback_link_offset_dquote : $pingback_link_offset_squote;
 		$pingback_href_pos       = strpos( $contents, 'href=', $pingback_link_offset );
 		$pingback_href_start     = $pingback_href_pos + 6;
 		$pingback_href_end       = strpos( $contents, $quote, $pingback_href_start );
 		$pingback_server_url_len = $pingback_href_end - $pingback_href_start;
 		$pingback_server_url     = substr( $contents, $pingback_href_start, $pingback_server_url_len );
 
 		// We may find rel="pingback" but an incomplete pingback URL.
 		if ( $pingback_server_url_len > 0 ) { // We got it!
 			return $pingback_server_url;
 		}
 	}
 
 	return false;
 }
 
 /**
  * Perform all pingbacks, enclosures, trackbacks, and send to pingback services.
  *
  * @since 2.1.0
  * @since 5.6.0 Introduced `do_all_pings` action hook for individual services.
  */
 function do_all_pings() {
 	/**
 	 * Fires immediately after the `do_pings` event to hook services individually.
 	 *
 	 * @since 5.6.0
 	 */
 	do_action( 'do_all_pings' );
 }
 
 /**
  * Perform all pingbacks.
  *
  * @since 5.6.0
  */
 function do_all_pingbacks() {
 	$pings = get_posts(
 		array(
 			'post_type'        => get_post_types(),
 			'suppress_filters' => false,
 			'nopaging'         => true,
 			'meta_key'         => '_pingme',
 			'fields'           => 'ids',
 		)
 	);
 
 	foreach ( $pings as $ping ) {
 		delete_post_meta( $ping, '_pingme' );
 		pingback( null, $ping );
 	}
 }
 
 /**
  * Perform all enclosures.
  *
  * @since 5.6.0
  */
 function do_all_enclosures() {
 	$enclosures = get_posts(
 		array(
 			'post_type'        => get_post_types(),
 			'suppress_filters' => false,
 			'nopaging'         => true,
 			'meta_key'         => '_encloseme',
 			'fields'           => 'ids',
 		)
 	);
 
 	foreach ( $enclosures as $enclosure ) {
 		delete_post_meta( $enclosure, '_encloseme' );
 		do_enclose( null, $enclosure );
 	}
 }
 
 /**
  * Perform all trackbacks.
  *
  * @since 5.6.0
  */
 function do_all_trackbacks() {
 	$trackbacks = get_posts(
 		array(
 			'post_type'        => get_post_types(),
 			'suppress_filters' => false,
 			'nopaging'         => true,
 			'meta_key'         => '_trackbackme',
 			'fields'           => 'ids',
 		)
 	);
 
 	foreach ( $trackbacks as $trackback ) {
 		delete_post_meta( $trackback, '_trackbackme' );
 		do_trackbacks( $trackback );
 	}
 }
 
 /**
  * Perform trackbacks.
  *
  * @since 1.5.0
  * @since 4.7.0 `$post_id` can be a WP_Post object.
  *
  * @global wpdb $wpdb WordPress database abstraction object.
  *
  * @param int|WP_Post $post_id Post object or ID to do trackbacks on.
  */
 function do_trackbacks( $post_id ) {
 	global $wpdb;
 	$post = get_post( $post_id );
 	if ( ! $post ) {
 		return false;
 	}
 
 	$to_ping = get_to_ping( $post );
 	$pinged  = get_pung( $post );
 	if ( empty( $to_ping ) ) {
 		$wpdb->update( $wpdb->posts, array( 'to_ping' => '' ), array( 'ID' => $post->ID ) );
 		return;
 	}
 
 	if ( empty( $post->post_excerpt ) ) {
 		/** This filter is documented in wp-includes/post-template.php */
 		$excerpt = apply_filters( 'the_content', $post->post_content, $post->ID );
 	} else {
 		/** This filter is documented in wp-includes/post-template.php */
 		$excerpt = apply_filters( 'the_excerpt', $post->post_excerpt );
 	}
 
 	$excerpt = str_replace( ']]>', ']]&gt;', $excerpt );
 	$excerpt = wp_html_excerpt( $excerpt, 252, '&#8230;' );
 
 	/** This filter is documented in wp-includes/post-template.php */
 	$post_title = apply_filters( 'the_title', $post->post_title, $post->ID );
 	$post_title = strip_tags( $post_title );
 
 	if ( $to_ping ) {
 		foreach ( (array) $to_ping as $tb_ping ) {
 			$tb_ping = trim( $tb_ping );
 			if ( ! in_array( $tb_ping, $pinged, true ) ) {
 				trackback( $tb_ping, $post_title, $excerpt, $post->ID );
 				$pinged[] = $tb_ping;
 			} else {
 				$wpdb->query(
 					$wpdb->prepare(
 						"UPDATE $wpdb->posts SET to_ping = TRIM(REPLACE(to_ping, %s,
 					'')) WHERE ID = %d",
 						$tb_ping,
 						$post->ID
 					)
 				);
 			}
 		}
 	}
 }
 
 /**
  * Sends pings to all of the ping site services.
  *
  * @since 1.2.0
  *
  * @param int $post_id Post ID.
  * @return int Same as Post ID from parameter
  */
 function generic_ping( $post_id = 0 ) {
 	$services = get_option( 'ping_sites' );
 
 	$services = explode( "\n", $services );
 	foreach ( (array) $services as $service ) {
 		$service = trim( $service );
 		if ( '' !== $service ) {
 			weblog_ping( $service );
 		}
 	}
 
 	return $post_id;
 }
 
 /**
  * Pings back the links found in a post.
  *
  * @since 0.71
  * @since 4.7.0 `$post_id` can be a WP_Post object.
  *
  * @param string      $content Post content to check for links. If empty will retrieve from post.
  * @param int|WP_Post $post_id Post Object or ID.
  */
 function pingback( $content, $post_id ) {
 	include_once ABSPATH . WPINC . '/class-IXR.php';
 	include_once ABSPATH . WPINC . '/class-wp-http-ixr-client.php';
 
 	// Original code by Mort (http://mort.mine.nu:8080).
 	$post_links = array();
 
 	$post = get_post( $post_id );
 	if ( ! $post ) {
 		return;
 	}
 
 	$pung = get_pung( $post );
 
 	if ( empty( $content ) ) {
 		$content = $post->post_content;
 	}
 
 	/*
 	 * Step 1.
 	 * Parsing the post, external links (if any) are stored in the $post_links array.
 	 */
 	$post_links_temp = wp_extract_urls( $content );
 
 	/*
 	 * Step 2.
 	 * Walking through the links array.
 	 * First we get rid of links pointing to sites, not to specific files.
 	 * Example:
 	 * http://dummy-weblog.org
 	 * http://dummy-weblog.org/
 	 * http://dummy-weblog.org/post.php
 	 * We don't wanna ping first and second types, even if they have a valid <link/>.
 	 */
 	foreach ( (array) $post_links_temp as $link_test ) {
 		// If we haven't pung it already and it isn't a link to itself.
 		if ( ! in_array( $link_test, $pung, true ) && ( url_to_postid( $link_test ) != $post->ID )
 			// Also, let's never ping local attachments.
 			&& ! is_local_attachment( $link_test )
 		) {
 			$test = parse_url( $link_test );
 			if ( $test ) {
 				if ( isset( $test['query'] ) ) {
 					$post_links[] = $link_test;
 				} elseif ( isset( $test['path'] ) && ( '/' !== $test['path'] ) && ( '' !== $test['path'] ) ) {
 					$post_links[] = $link_test;
 				}
 			}
 		}
 	}
 
 	$post_links = array_unique( $post_links );
 
 	/**
 	 * Fires just before pinging back links found in a post.
 	 *
 	 * @since 2.0.0
 	 *
 	 * @param string[] $post_links Array of link URLs to be checked (passed by reference).
 	 * @param string[] $pung       Array of link URLs already pinged (passed by reference).
 	 * @param int      $post_ID    The post ID.
 	 */
 	do_action_ref_array( 'pre_ping', array( &$post_links, &$pung, $post->ID ) );
 
 	foreach ( (array) $post_links as $pagelinkedto ) {
 		$pingback_server_url = discover_pingback_server_uri( $pagelinkedto );
 
 		if ( $pingback_server_url ) {
 			set_time_limit( 60 );
 			// Now, the RPC call.
 			$pagelinkedfrom = get_permalink( $post );
 
 			// Using a timeout of 3 seconds should be enough to cover slow servers.
 			$client          = new WP_HTTP_IXR_Client( $pingback_server_url );
 			$client->timeout = 3;
 			/**
 			 * Filters the user agent sent when pinging-back a URL.
 			 *
 			 * @since 2.9.0
 			 *
 			 * @param string $concat_useragent    The user agent concatenated with ' -- WordPress/'
 			 *                                    and the WordPress version.
 			 * @param string $useragent           The useragent.
 			 * @param string $pingback_server_url The server URL being linked to.
 			 * @param string $pagelinkedto        URL of page linked to.
 			 * @param string $pagelinkedfrom      URL of page linked from.
 			 */
 			$client->useragent = apply_filters( 'pingback_useragent', $client->useragent . ' -- WordPress/' . get_bloginfo( 'version' ), $client->useragent, $pingback_server_url, $pagelinkedto, $pagelinkedfrom );
 			// When set to true, this outputs debug messages by itself.
 			$client->debug = false;
 
 			if ( $client->query( 'pingback.ping', $pagelinkedfrom, $pagelinkedto ) || ( isset( $client->error->code ) && 48 == $client->error->code ) ) { // Already registered.
 				add_ping( $post, $pagelinkedto );
 			}
 		}
 	}
 }
 
 /**
  * Check whether blog is public before returning sites.
  *
  * @since 2.1.0
  *
  * @param mixed $sites Will return if blog is public, will not return if not public.
  * @return mixed Empty string if blog is not public, returns $sites, if site is public.
  */
 function privacy_ping_filter( $sites ) {
 	if ( '0' != get_option( 'blog_public' ) ) {
 		return $sites;
 	} else {
 		return '';
 	}
 }
 
 /**
  * Send a Trackback.
  *
  * Updates database when sending trackback to prevent duplicates.
  *
  * @since 0.71
  *
  * @global wpdb $wpdb WordPress database abstraction object.
  *
  * @param string $trackback_url URL to send trackbacks.
  * @param string $title         Title of post.
  * @param string $excerpt       Excerpt of post.
  * @param int    $ID            Post ID.
  * @return int|false|void Database query from update.
  */
 function trackback( $trackback_url, $title, $excerpt, $ID ) {
 	global $wpdb;
 
 	if ( empty( $trackback_url ) ) {
 		return;
 	}
 
 	$options            = array();
 	$options['timeout'] = 10;
 	$options['body']    = array(
 		'title'     => $title,
 		'url'       => get_permalink( $ID ),
 		'blog_name' => get_option( 'blogname' ),
 		'excerpt'   => $excerpt,
 	);
 
 	$response = wp_safe_remote_post( $trackback_url, $options );
 
 	if ( is_wp_error( $response ) ) {
 		return;
 	}
 
 	$wpdb->query( $wpdb->prepare( "UPDATE $wpdb->posts SET pinged = CONCAT(pinged, '\n', %s) WHERE ID = %d", $trackback_url, $ID ) );
 	return $wpdb->query( $wpdb->prepare( "UPDATE $wpdb->posts SET to_ping = TRIM(REPLACE(to_ping, %s, '')) WHERE ID = %d", $trackback_url, $ID ) );
 }
 
 /**
  * Send a pingback.
  *
  * @since 1.2.0
  *
  * @param string $server Host of blog to connect to.
  * @param string $path Path to send the ping.
  */
 function weblog_ping( $server = '', $path = '' ) {
 	include_once ABSPATH . WPINC . '/class-IXR.php';
 	include_once ABSPATH . WPINC . '/class-wp-http-ixr-client.php';
 
 	// Using a timeout of 3 seconds should be enough to cover slow servers.
 	$client             = new WP_HTTP_IXR_Client( $server, ( ( ! strlen( trim( $path ) ) || ( '/' === $path ) ) ? false : $path ) );
 	$client->timeout    = 3;
 	$client->useragent .= ' -- WordPress/' . get_bloginfo( 'version' );
 
 	// When set to true, this outputs debug messages by itself.
 	$client->debug = false;
 	$home          = trailingslashit( home_url() );
 	if ( ! $client->query( 'weblogUpdates.extendedPing', get_option( 'blogname' ), $home, get_bloginfo( 'rss2_url' ) ) ) { // Then try a normal ping.
 		$client->query( 'weblogUpdates.ping', get_option( 'blogname' ), $home );
 	}
 }
 
 /**
  * Default filter attached to pingback_ping_source_uri to validate the pingback's Source URI
  *
  * @since 3.5.1
  *
  * @see wp_http_validate_url()
  *
  * @param string $source_uri
  * @return string
  */
 function pingback_ping_source_uri( $source_uri ) {
 	return (string) wp_http_validate_url( $source_uri );
 }
 
 /**
  * Default filter attached to xmlrpc_pingback_error.
  *
  * Returns a generic pingback error code unless the error code is 48,
  * which reports that the pingback is already registered.
  *
  * @since 3.5.1
  *
  * @link https://www.hixie.ch/specs/pingback/pingback#TOC3
  *
  * @param IXR_Error $ixr_error
  * @return IXR_Error
  */
 function xmlrpc_pingback_error( $ixr_error ) {
 	if ( 48 === $ixr_error->code ) {
 		return $ixr_error;
 	}
 	return new IXR_Error( 0, '' );
 }
 
 //
 // Cache.
 //
 
 /**
  * Removes a comment from the object cache.
  *
  * @since 2.3.0
  *
  * @param int|array $ids Comment ID or an array of comment IDs to remove from cache.
  */
 function clean_comment_cache( $ids ) {
 	foreach ( (array) $ids as $id ) {
 		wp_cache_delete( $id, 'comment' );
 
 		/**
 		 * Fires immediately after a comment has been removed from the object cache.
 		 *
 		 * @since 4.5.0
 		 *
 		 * @param int $id Comment ID.
 		 */
 		do_action( 'clean_comment_cache', $id );
 	}
 
 	wp_cache_set( 'last_changed', microtime(), 'comment' );
 }
 
 /**
  * Updates the comment cache of given comments.
  *
  * Will add the comments in $comments to the cache. If comment ID already exists
  * in the comment cache then it will not be updated. The comment is added to the
  * cache using the comment group with the key using the ID of the comments.
  *
  * @since 2.3.0
  * @since 4.4.0 Introduced the `$update_meta_cache` parameter.
  *
  * @param WP_Comment[] $comments          Array of comment objects
  * @param bool         $update_meta_cache Whether to update commentmeta cache. Default true.
  */
 function update_comment_cache( $comments, $update_meta_cache = true ) {
 	foreach ( (array) $comments as $comment ) {
 		wp_cache_add( $comment->comment_ID, $comment, 'comment' );
 	}
 
 	if ( $update_meta_cache ) {
 		// Avoid `wp_list_pluck()` in case `$comments` is passed by reference.
 		$comment_ids = array();
 		foreach ( $comments as $comment ) {
 			$comment_ids[] = $comment->comment_ID;
 		}
 		update_meta_cache( 'comment', $comment_ids );
 	}
 }
 
 /**
  * Adds any comments from the given IDs to the cache that do not already exist in cache.
  *
  * @since 4.4.0
  * @access private
  *
  * @see update_comment_cache()
  * @global wpdb $wpdb WordPress database abstraction object.
  *
  * @param int[] $comment_ids       Array of comment IDs.
  * @param bool  $update_meta_cache Optional. Whether to update the meta cache. Default true.
  */
 function _prime_comment_caches( $comment_ids, $update_meta_cache = true ) {
 	global $wpdb;
 
 	$non_cached_ids = _get_non_cached_ids( $comment_ids, 'comment' );
 	if ( ! empty( $non_cached_ids ) ) {
 		$fresh_comments = $wpdb->get_results( sprintf( "SELECT $wpdb->comments.* FROM $wpdb->comments WHERE comment_ID IN (%s)", implode( ',', array_map( 'intval', $non_cached_ids ) ) ) );
 
 		update_comment_cache( $fresh_comments, $update_meta_cache );
 	}
 }
 
 //
 // Internal.
 //
 
 /**
  * Close comments on old posts on the fly, without any extra DB queries. Hooked to the_posts.
  *
  * @since 2.7.0
  * @access private
  *
  * @param WP_Post  $posts Post data object.
  * @param WP_Query $query Query object.
  * @return array
  */
 function _close_comments_for_old_posts( $posts, $query ) {
 	if ( empty( $posts ) || ! $query->is_singular() || ! get_option( 'close_comments_for_old_posts' ) ) {
 		return $posts;
 	}
 
 	/**
 	 * Filters the list of post types to automatically close comments for.
 	 *
 	 * @since 3.2.0
 	 *
 	 * @param string[] $post_types An array of post type names.
 	 */
 	$post_types = apply_filters( 'close_comments_for_post_types', array( 'post' ) );
 	if ( ! in_array( $posts[0]->post_type, $post_types, true ) ) {
 		return $posts;
 	}
 
 	$days_old = (int) get_option( 'close_comments_days_old' );
 	if ( ! $days_old ) {
 		return $posts;
 	}
 
 	if ( time() - strtotime( $posts[0]->post_date_gmt ) > ( $days_old * DAY_IN_SECONDS ) ) {
 		$posts[0]->comment_status = 'closed';
 		$posts[0]->ping_status    = 'closed';
 	}
 
 	return $posts;
 }
 
 /**
  * Close comments on an old post. Hooked to comments_open and pings_open.
  *
  * @since 2.7.0
  * @access private
  *
  * @param bool $open    Comments open or closed.
  * @param int  $post_id Post ID.
  * @return bool $open
  */
 function _close_comments_for_old_post( $open, $post_id ) {
 	if ( ! $open ) {
 		return $open;
 	}
 
 	if ( ! get_option( 'close_comments_for_old_posts' ) ) {
 		return $open;
 	}
 
 	$days_old = (int) get_option( 'close_comments_days_old' );
 	if ( ! $days_old ) {
 		return $open;
 	}
 
 	$post = get_post( $post_id );
 
 	/** This filter is documented in wp-includes/comment.php */
 	$post_types = apply_filters( 'close_comments_for_post_types', array( 'post' ) );
 	if ( ! in_array( $post->post_type, $post_types, true ) ) {
 		return $open;
 	}
 
 	// Undated drafts should not show up as comments closed.
 	if ( '0000-00-00 00:00:00' === $post->post_date_gmt ) {
 		return $open;
 	}
 
 	if ( time() - strtotime( $post->post_date_gmt ) > ( $days_old * DAY_IN_SECONDS ) ) {
 		return false;
 	}
 
 	return $open;
 }
 
 /**
  * Handles the submission of a comment, usually posted to wp-comments-post.php via a comment form.
  *
  * This function expects unslashed data, as opposed to functions such as `wp_new_comment()` which
  * expect slashed data.
  *
  * @since 4.4.0
  *
  * @param array $comment_data {
  *     Comment data.
  *
  *     @type string|int $comment_post_ID             The ID of the post that relates to the comment.
  *     @type string     $author                      The name of the comment author.
  *     @type string     $email                       The comment author email address.
  *     @type string     $url                         The comment author URL.
  *     @type string     $comment                     The content of the comment.
  *     @type string|int $comment_parent              The ID of this comment's parent, if any. Default 0.
  *     @type string     $_wp_unfiltered_html_comment The nonce value for allowing unfiltered HTML.
  * }
  * @return WP_Comment|WP_Error A WP_Comment object on success, a WP_Error object on failure.
  */
 function wp_handle_comment_submission( $comment_data ) {
 
 	$comment_post_ID      = 0;
 	$comment_parent       = 0;
 	$user_ID              = 0;
 	$comment_author       = null;
 	$comment_author_email = null;
 	$comment_author_url   = null;
 	$comment_content      = null;
 
 	if ( isset( $comment_data['comment_post_ID'] ) ) {
 		$comment_post_ID = (int) $comment_data['comment_post_ID'];
 	}
 	if ( isset( $comment_data['author'] ) && is_string( $comment_data['author'] ) ) {
 		$comment_author = trim( strip_tags( $comment_data['author'] ) );
 	}
 	if ( isset( $comment_data['email'] ) && is_string( $comment_data['email'] ) ) {
 		$comment_author_email = trim( $comment_data['email'] );
 	}
 	if ( isset( $comment_data['url'] ) && is_string( $comment_data['url'] ) ) {
 		$comment_author_url = trim( $comment_data['url'] );
 	}
 	if ( isset( $comment_data['comment'] ) && is_string( $comment_data['comment'] ) ) {
 		$comment_content = trim( $comment_data['comment'] );
 	}
 	if ( isset( $comment_data['comment_parent'] ) ) {
 		$comment_parent = absint( $comment_data['comment_parent'] );
 	}
 
 	$post = get_post( $comment_post_ID );
 
 	if ( empty( $post->comment_status ) ) {
 
 		/**
 		 * Fires when a comment is attempted on a post that does not exist.
 		 *
 		 * @since 1.5.0
 		 *
 		 * @param int $comment_post_ID Post ID.
 		 */
 		do_action( 'comment_id_not_found', $comment_post_ID );
 
 		return new WP_Error( 'comment_id_not_found' );
 
 	}
 
 	// get_post_status() will get the parent status for attachments.
 	$status = get_post_status( $post );
 
 	if ( ( 'private' === $status ) && ! current_user_can( 'read_post', $comment_post_ID ) ) {
 		return new WP_Error( 'comment_id_not_found' );
 	}
 
 	$status_obj = get_post_status_object( $status );
 
 	if ( ! comments_open( $comment_post_ID ) ) {
 
 		/**
 		 * Fires when a comment is attempted on a post that has comments closed.
 		 *
 		 * @since 1.5.0
 		 *
 		 * @param int $comment_post_ID Post ID.
 		 */
 		do_action( 'comment_closed', $comment_post_ID );
 
 		return new WP_Error( 'comment_closed', __( 'Sorry, comments are closed for this item.' ), 403 );
 
 	} elseif ( 'trash' === $status ) {
 
 		/**
 		 * Fires when a comment is attempted on a trashed post.
 		 *
 		 * @since 2.9.0
 		 *
 		 * @param int $comment_post_ID Post ID.
 		 */
 		do_action( 'comment_on_trash', $comment_post_ID );
 
 		return new WP_Error( 'comment_on_trash' );
 
 	} elseif ( ! $status_obj->public && ! $status_obj->private ) {
 
 		/**
 		 * Fires when a comment is attempted on a post in draft mode.
 		 *
 		 * @since 1.5.1
 		 *
 		 * @param int $comment_post_ID Post ID.
 		 */
 		do_action( 'comment_on_draft', $comment_post_ID );
 
 		if ( current_user_can( 'read_post', $comment_post_ID ) ) {
 			return new WP_Error( 'comment_on_draft', __( 'Sorry, comments are not allowed for this item.' ), 403 );
 		} else {
 			return new WP_Error( 'comment_on_draft' );
 		}
 	} elseif ( post_password_required( $comment_post_ID ) ) {
 
 		/**
 		 * Fires when a comment is attempted on a password-protected post.
 		 *
 		 * @since 2.9.0
 		 *
 		 * @param int $comment_post_ID Post ID.
 		 */
 		do_action( 'comment_on_password_protected', $comment_post_ID );
 
 		return new WP_Error( 'comment_on_password_protected' );
 
 	} else {
 
 		/**
 		 * Fires before a comment is posted.
 		 *
 		 * @since 2.8.0
 		 *
 		 * @param int $comment_post_ID Post ID.
 		 */
 		do_action( 'pre_comment_on_post', $comment_post_ID );
 
 	}
 
 	// If the user is logged in.
 	$user = wp_get_current_user();
 	if ( $user->exists() ) {
 		if ( empty( $user->display_name ) ) {
 			$user->display_name = $user->user_login;
 		}
 		$comment_author       = $user->display_name;
 		$comment_author_email = $user->user_email;
 		$comment_author_url   = $user->user_url;
 		$user_ID              = $user->ID;
 		if ( current_user_can( 'unfiltered_html' ) ) {
 			if ( ! isset( $comment_data['_wp_unfiltered_html_comment'] )
 				|| ! wp_verify_nonce( $comment_data['_wp_unfiltered_html_comment'], 'unfiltered-html-comment_' . $comment_post_ID )
 			) {
 				kses_remove_filters(); // Start with a clean slate.
 				kses_init_filters();   // Set up the filters.
 				remove_filter( 'pre_comment_content', 'wp_filter_post_kses' );
 				add_filter( 'pre_comment_content', 'wp_filter_kses' );
 			}
 		}
 	} else {
 		if ( get_option( 'comment_registration' ) ) {
 			return new WP_Error( 'not_logged_in', __( 'Sorry, you must be logged in to comment.' ), 403 );
 		}
 	}
 
 	$comment_type = 'comment';
 
 	if ( get_option( 'require_name_email' ) && ! $user->exists() ) {
 		if ( '' == $comment_author_email || '' == $comment_author ) {
 			return new WP_Error( 'require_name_email', __( '<strong>Error</strong>: Please fill the required fields (name, email).' ), 200 );
 		} elseif ( ! is_email( $comment_author_email ) ) {
 			return new WP_Error( 'require_valid_email', __( '<strong>Error</strong>: Please enter a valid email address.' ), 200 );
 		}
 	}
 
 	$commentdata = compact(
 		'comment_post_ID',
 		'comment_author',
 		'comment_author_email',
 		'comment_author_url',
 		'comment_content',
 		'comment_type',
 		'comment_parent',
 		'user_ID'
 	);
 
 	/**
 	 * Filters whether an empty comment should be allowed.
 	 *
 	 * @since 5.1.0
 	 *
 	 * @param bool  $allow_empty_comment Whether to allow empty comments. Default false.
 	 * @param array $commentdata         Array of comment data to be sent to wp_insert_comment().
 	 */
 	$allow_empty_comment = apply_filters( 'allow_empty_comment', false, $commentdata );
 	if ( '' === $comment_content && ! $allow_empty_comment ) {
 		return new WP_Error( 'require_valid_comment', __( '<strong>Error</strong>: Please type your comment text.' ), 200 );
 	}
 
 	$check_max_lengths = wp_check_comment_data_max_lengths( $commentdata );
 	if ( is_wp_error( $check_max_lengths ) ) {
 		return $check_max_lengths;
 	}
 
 	$comment_id = wp_new_comment( wp_slash( $commentdata ), true );
 	if ( is_wp_error( $comment_id ) ) {
 		return $comment_id;
 	}
 
 	if ( ! $comment_id ) {
 		return new WP_Error( 'comment_save_error', __( '<strong>Error</strong>: The comment could not be saved. Please try again later.' ), 500 );
 	}
 
 	return get_comment( $comment_id );
 }
 
 /**
  * Registers the personal data exporter for comments.
  *
  * @since 4.9.6
  *
  * @param array $exporters An array of personal data exporters.
  * @return array An array of personal data exporters.
  */
 function wp_register_comment_personal_data_exporter( $exporters ) {
 	$exporters['wordpress-comments'] = array(
 		'exporter_friendly_name' => __( 'WordPress Comments' ),
 		'callback'               => 'wp_comments_personal_data_exporter',
 	);
 
 	return $exporters;
 }
 
 /**
  * Finds and exports personal data associated with an email address from the comments table.
  *
  * @since 4.9.6
  *
  * @param string $email_address The comment author email address.
  * @param int    $page          Comment page.
  * @return array An array of personal data.
  */
 function wp_comments_personal_data_exporter( $email_address, $page = 1 ) {
 	// Limit us to 500 comments at a time to avoid timing out.
 	$number = 500;
 	$page   = (int) $page;
 
 	$data_to_export = array();
 
 	$comments = get_comments(
 		array(
 			'author_email'              => $email_address,
 			'number'                    => $number,
 			'paged'                     => $page,
 			'order_by'                  => 'comment_ID',
 			'order'                     => 'ASC',
 			'update_comment_meta_cache' => false,
 		)
 	);
 
 	$comment_prop_to_export = array(
 		'comment_author'       => __( 'Comment Author' ),
 		'comment_author_email' => __( 'Comment Author Email' ),
 		'comment_author_url'   => __( 'Comment Author URL' ),
 		'comment_author_IP'    => __( 'Comment Author IP' ),
 		'comment_agent'        => __( 'Comment Author User Agent' ),
 		'comment_date'         => __( 'Comment Date' ),
 		'comment_content'      => __( 'Comment Content' ),
 		'comment_link'         => __( 'Comment URL' ),
 	);
 
 	foreach ( (array) $comments as $comment ) {
 		$comment_data_to_export = array();
 
 		foreach ( $comment_prop_to_export as $key => $name ) {
 			$value = '';
 
 			switch ( $key ) {
 				case 'comment_author':
 				case 'comment_author_email':
 				case 'comment_author_url':
 				case 'comment_author_IP':
 				case 'comment_agent':
 				case 'comment_date':
 					$value = $comment->{$key};
 					break;
 
 				case 'comment_content':
 					$value = get_comment_text( $comment->comment_ID );
 					break;
 
 				case 'comment_link':
 					$value = get_comment_link( $comment->comment_ID );
 					$value = sprintf(
 						'<a href="%s" target="_blank" rel="noopener">%s</a>',
 						esc_url( $value ),
 						esc_html( $value )
 					);
 					break;
 			}
 
 			if ( ! empty( $value ) ) {
 				$comment_data_to_export[] = array(
 					'name'  => $name,
 					'value' => $value,
 				);
 			}
 		}
 
 		$data_to_export[] = array(
 			'group_id'          => 'comments',
 			'group_label'       => __( 'Comments' ),
 			'group_description' => __( 'User&#8217;s comment data.' ),
 			'item_id'           => "comment-{$comment->comment_ID}",
 			'data'              => $comment_data_to_export,
 		);
 	}
 
 	$done = count( $comments ) < $number;
 
 	return array(
 		'data' => $data_to_export,
 		'done' => $done,
 	);
 }
 
 /**
  * Registers the personal data eraser for comments.
  *
  * @since 4.9.6
  *
  * @param array $erasers An array of personal data erasers.
  * @return array An array of personal data erasers.
  */
 function wp_register_comment_personal_data_eraser( $erasers ) {
 	$erasers['wordpress-comments'] = array(
 		'eraser_friendly_name' => __( 'WordPress Comments' ),
 		'callback'             => 'wp_comments_personal_data_eraser',
 	);
 
 	return $erasers;
 }
 
 /**
  * Erases personal data associated with an email address from the comments table.
  *
  * @since 4.9.6
  *
  * @param string $email_address The comment author email address.
  * @param int    $page          Comment page.
  * @return array
  */
 function wp_comments_personal_data_eraser( $email_address, $page = 1 ) {
 	global $wpdb;
 
 	if ( empty( $email_address ) ) {
 		return array(
 			'items_removed'  => false,
 			'items_retained' => false,
 			'messages'       => array(),
 			'done'           => true,
 		);
 	}
 
 	// Limit us to 500 comments at a time to avoid timing out.
 	$number         = 500;
 	$page           = (int) $page;
 	$items_removed  = false;
 	$items_retained = false;
 
 	$comments = get_comments(
 		array(
 			'author_email'       => $email_address,
 			'number'             => $number,
 			'paged'              => $page,
 			'order_by'           => 'comment_ID',
 			'order'              => 'ASC',
 			'include_unapproved' => true,
 		)
 	);
 
 	/* translators: Name of a comment's author after being anonymized. */
 	$anon_author = __( 'Anonymous' );
 	$messages    = array();
 
 	foreach ( (array) $comments as $comment ) {
 		$anonymized_comment                         = array();
 		$anonymized_comment['comment_agent']        = '';
 		$anonymized_comment['comment_author']       = $anon_author;
 		$anonymized_comment['comment_author_email'] = '';
 		$anonymized_comment['comment_author_IP']    = wp_privacy_anonymize_data( 'ip', $comment->comment_author_IP );
 		$anonymized_comment['comment_author_url']   = '';
 		$anonymized_comment['user_id']              = 0;
 
 		$comment_id = (int) $comment->comment_ID;
 
 		/**
 		 * Filters whether to anonymize the comment.
 		 *
 		 * @since 4.9.6
 		 *
 		 * @param bool|string $anon_message       Whether to apply the comment anonymization (bool) or a custom
 		 *                                        message (string). Default true.
 		 * @param WP_Comment  $comment            WP_Comment object.
 		 * @param array       $anonymized_comment Anonymized comment data.
 		 */
 		$anon_message = apply_filters( 'wp_anonymize_comment', true, $comment, $anonymized_comment );
 
 		if ( true !== $anon_message ) {
 			if ( $anon_message && is_string( $anon_message ) ) {
 				$messages[] = esc_html( $anon_message );
 			} else {
 				/* translators: %d: Comment ID. */
 				$messages[] = sprintf( __( 'Comment %d contains personal data but could not be anonymized.' ), $comment_id );
 			}
 
 			$items_retained = true;
 
 			continue;
 		}
 
 		$args = array(
 			'comment_ID' => $comment_id,
 		);
 
 		$updated = $wpdb->update( $wpdb->comments, $anonymized_comment, $args );
 
 		if ( $updated ) {
 			$items_removed = true;
 			clean_comment_cache( $comment_id );
 		} else {
 			$items_retained = true;
 		}
 	}
 
 	$done = count( $comments ) < $number;
 
 	return array(
 		'items_removed'  => $items_removed,
 		'items_retained' => $items_retained,
 		'messages'       => $messages,
 		'done'           => $done,
 	);
 }
 
 /**
  * Sets the last changed time for the 'comment' cache group.
  *
  * @since 5.0.0
  */
 function wp_cache_set_comments_last_changed() {
 	wp_cache_set( 'last_changed', microtime(), 'comment' );
 }
 
 /**
  * Updates the comment type for a batch of comments.
  *
  * @since 5.5.0
  *
  * @global wpdb $wpdb WordPress database abstraction object.
  */
 function _wp_batch_update_comment_type() {
 	global $wpdb;
 
 	$lock_name = 'update_comment_type.lock';
 
 	// Try to lock.
 	$lock_result = $wpdb->query( $wpdb->prepare( "INSERT IGNORE INTO `$wpdb->options` ( `option_name`, `option_value`, `autoload` ) VALUES (%s, %s, 'no') /* LOCK */", $lock_name, time() ) );
 
 	if ( ! $lock_result ) {
 		$lock_result = get_option( $lock_name );
 
 		// Bail if we were unable to create a lock, or if the existing lock is still valid.
 		if ( ! $lock_result || ( $lock_result > ( time() - HOUR_IN_SECONDS ) ) ) {
 			wp_schedule_single_event( time() + ( 5 * MINUTE_IN_SECONDS ), 'wp_update_comment_type_batch' );
 			return;
 		}
 	}
 
 	// Update the lock, as by this point we've definitely got a lock, just need to fire the actions.
 	update_option( $lock_name, time() );
 
 	// Check if there's still an empty comment type.
 	$empty_comment_type = $wpdb->get_var(
 		"SELECT comment_ID FROM $wpdb->comments
 		WHERE comment_type = ''
 		LIMIT 1"
 	);
 
 	// No empty comment type, we're done here.
 	if ( ! $empty_comment_type ) {
 		update_option( 'finished_updating_comment_type', true );
 		delete_option( $lock_name );
 		return;
 	}
 
 	// Empty comment type found? We'll need to run this script again.
 	wp_schedule_single_event( time() + ( 2 * MINUTE_IN_SECONDS ), 'wp_update_comment_type_batch' );
 
 	/**
 	 * Filters the comment batch size for updating the comment type.
 	 *
 	 * @since 5.5.0
 	 *
 	 * @param int $comment_batch_size The comment batch size. Default 100.
 	 */
 	$comment_batch_size = (int) apply_filters( 'wp_update_comment_type_batch_size', 100 );
 
 	// Get the IDs of the comments to update.
 	$comment_ids = $wpdb->get_col(
 		$wpdb->prepare(
 			"SELECT comment_ID
 			FROM {$wpdb->comments}
 			WHERE comment_type = ''
 			ORDER BY comment_ID DESC
 			LIMIT %d",
 			$comment_batch_size
 		)
 	);
 
 	if ( $comment_ids ) {
 		$comment_id_list = implode( ',', $comment_ids );
 
 		// Update the `comment_type` field value to be `comment` for the next batch of comments.
 		$wpdb->query(
 			"UPDATE {$wpdb->comments}
 			SET comment_type = 'comment'
 			WHERE comment_type = ''
 			AND comment_ID IN ({$comment_id_list})" // phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared
 		);
 
 		// Make sure to clean the comment cache.
 		clean_comment_cache( $comment_ids );
 	}
 
 	delete_option( $lock_name );
 }
 
 /**
  * In order to avoid the _wp_batch_update_comment_type() job being accidentally removed,
  * check that it's still scheduled while we haven't finished updating comment types.
  *
  * @ignore
  * @since 5.5.0
  */
 function _wp_check_for_scheduled_update_comment_type() {
 	if ( ! get_option( 'finished_updating_comment_type' ) && ! wp_next_scheduled( 'wp_update_comment_type_batch' ) ) {
 		wp_schedule_single_event( time() + MINUTE_IN_SECONDS, 'wp_update_comment_type_batch' );
 	}
 }