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class-wp-user-query.php (31333B)


      1 <?php
      2 /**
      3  * User API: WP_User_Query class
      4  *
      5  * @package WordPress
      6  * @subpackage Users
      7  * @since 4.4.0
      8  */
      9 
     10 /**
     11  * Core class used for querying users.
     12  *
     13  * @since 3.1.0
     14  *
     15  * @see WP_User_Query::prepare_query() for information on accepted arguments.
     16  */
     17 class WP_User_Query {
     18 
     19 	/**
     20 	 * Query vars, after parsing
     21 	 *
     22 	 * @since 3.5.0
     23 	 * @var array
     24 	 */
     25 	public $query_vars = array();
     26 
     27 	/**
     28 	 * List of found user IDs.
     29 	 *
     30 	 * @since 3.1.0
     31 	 * @var array
     32 	 */
     33 	private $results;
     34 
     35 	/**
     36 	 * Total number of found users for the current query
     37 	 *
     38 	 * @since 3.1.0
     39 	 * @var int
     40 	 */
     41 	private $total_users = 0;
     42 
     43 	/**
     44 	 * Metadata query container.
     45 	 *
     46 	 * @since 4.2.0
     47 	 * @var WP_Meta_Query
     48 	 */
     49 	public $meta_query = false;
     50 
     51 	/**
     52 	 * The SQL query used to fetch matching users.
     53 	 *
     54 	 * @since 4.4.0
     55 	 * @var string
     56 	 */
     57 	public $request;
     58 
     59 	private $compat_fields = array( 'results', 'total_users' );
     60 
     61 	// SQL clauses.
     62 	public $query_fields;
     63 	public $query_from;
     64 	public $query_where;
     65 	public $query_orderby;
     66 	public $query_limit;
     67 
     68 	/**
     69 	 * PHP5 constructor.
     70 	 *
     71 	 * @since 3.1.0
     72 	 *
     73 	 * @param null|string|array $query Optional. The query variables.
     74 	 */
     75 	public function __construct( $query = null ) {
     76 		if ( ! empty( $query ) ) {
     77 			$this->prepare_query( $query );
     78 			$this->query();
     79 		}
     80 	}
     81 
     82 	/**
     83 	 * Fills in missing query variables with default values.
     84 	 *
     85 	 * @since 4.4.0
     86 	 *
     87 	 * @param array $args Query vars, as passed to `WP_User_Query`.
     88 	 * @return array Complete query variables with undefined ones filled in with defaults.
     89 	 */
     90 	public static function fill_query_vars( $args ) {
     91 		$defaults = array(
     92 			'blog_id'             => get_current_blog_id(),
     93 			'role'                => '',
     94 			'role__in'            => array(),
     95 			'role__not_in'        => array(),
     96 			'meta_key'            => '',
     97 			'meta_value'          => '',
     98 			'meta_compare'        => '',
     99 			'include'             => array(),
    100 			'exclude'             => array(),
    101 			'search'              => '',
    102 			'search_columns'      => array(),
    103 			'orderby'             => 'login',
    104 			'order'               => 'ASC',
    105 			'offset'              => '',
    106 			'number'              => '',
    107 			'paged'               => 1,
    108 			'count_total'         => true,
    109 			'fields'              => 'all',
    110 			'who'                 => '',
    111 			'has_published_posts' => null,
    112 			'nicename'            => '',
    113 			'nicename__in'        => array(),
    114 			'nicename__not_in'    => array(),
    115 			'login'               => '',
    116 			'login__in'           => array(),
    117 			'login__not_in'       => array(),
    118 		);
    119 
    120 		return wp_parse_args( $args, $defaults );
    121 	}
    122 
    123 	/**
    124 	 * Prepare the query variables.
    125 	 *
    126 	 * @since 3.1.0
    127 	 * @since 4.1.0 Added the ability to order by the `include` value.
    128 	 * @since 4.2.0 Added 'meta_value_num' support for `$orderby` parameter. Added multi-dimensional array syntax
    129 	 *              for `$orderby` parameter.
    130 	 * @since 4.3.0 Added 'has_published_posts' parameter.
    131 	 * @since 4.4.0 Added 'paged', 'role__in', and 'role__not_in' parameters. The 'role' parameter was updated to
    132 	 *              permit an array or comma-separated list of values. The 'number' parameter was updated to support
    133 	 *              querying for all users with using -1.
    134 	 * @since 4.7.0 Added 'nicename', 'nicename__in', 'nicename__not_in', 'login', 'login__in',
    135 	 *              and 'login__not_in' parameters.
    136 	 *
    137 	 * @global wpdb $wpdb WordPress database abstraction object.
    138 	 * @global int  $blog_id
    139 	 *
    140 	 * @param string|array $query {
    141 	 *     Optional. Array or string of Query parameters.
    142 	 *
    143 	 *     @type int          $blog_id             The site ID. Default is the current site.
    144 	 *     @type string|array $role                An array or a comma-separated list of role names that users must match
    145 	 *                                             to be included in results. Note that this is an inclusive list: users
    146 	 *                                             must match *each* role. Default empty.
    147 	 *     @type string[]     $role__in            An array of role names. Matched users must have at least one of these
    148 	 *                                             roles. Default empty array.
    149 	 *     @type string[]     $role__not_in        An array of role names to exclude. Users matching one or more of these
    150 	 *                                             roles will not be included in results. Default empty array.
    151 	 *     @type string       $meta_key            User meta key. Default empty.
    152 	 *     @type string       $meta_value          User meta value. Default empty.
    153 	 *     @type string       $meta_compare        Comparison operator to test the `$meta_value`. Accepts '=', '!=',
    154 	 *                                             '>', '>=', '<', '<=', 'LIKE', 'NOT LIKE', 'IN', 'NOT IN',
    155 	 *                                             'BETWEEN', 'NOT BETWEEN', 'EXISTS', 'NOT EXISTS', 'REGEXP',
    156 	 *                                             'NOT REGEXP', or 'RLIKE'. Default '='.
    157 	 *     @type int[]        $include             An array of user IDs to include. Default empty array.
    158 	 *     @type int[]        $exclude             An array of user IDs to exclude. Default empty array.
    159 	 *     @type string       $search              Search keyword. Searches for possible string matches on columns.
    160 	 *                                             When `$search_columns` is left empty, it tries to determine which
    161 	 *                                             column to search in based on search string. Default empty.
    162 	 *     @type string[]     $search_columns      Array of column names to be searched. Accepts 'ID', 'user_login',
    163 	 *                                             'user_email', 'user_url', 'user_nicename', 'display_name'.
    164 	 *                                             Default empty array.
    165 	 *     @type string|array $orderby             Field(s) to sort the retrieved users by. May be a single value,
    166 	 *                                             an array of values, or a multi-dimensional array with fields as
    167 	 *                                             keys and orders ('ASC' or 'DESC') as values. Accepted values are
    168 	 *                                             'ID', 'display_name' (or 'name'), 'include', 'user_login'
    169 	 *                                             (or 'login'), 'login__in', 'user_nicename' (or 'nicename'),
    170 	 *                                             'nicename__in', 'user_email (or 'email'), 'user_url' (or 'url'),
    171 	 *                                             'user_registered' (or 'registered'), 'post_count', 'meta_value',
    172 	 *                                             'meta_value_num', the value of `$meta_key`, or an array key of
    173 	 *                                             `$meta_query`. To use 'meta_value' or 'meta_value_num', `$meta_key`
    174 	 *                                             must be also be defined. Default 'user_login'.
    175 	 *     @type string       $order               Designates ascending or descending order of users. Order values
    176 	 *                                             passed as part of an `$orderby` array take precedence over this
    177 	 *                                             parameter. Accepts 'ASC', 'DESC'. Default 'ASC'.
    178 	 *     @type int          $offset              Number of users to offset in retrieved results. Can be used in
    179 	 *                                             conjunction with pagination. Default 0.
    180 	 *     @type int          $number              Number of users to limit the query for. Can be used in
    181 	 *                                             conjunction with pagination. Value -1 (all) is supported, but
    182 	 *                                             should be used with caution on larger sites.
    183 	 *                                             Default -1 (all users).
    184 	 *     @type int          $paged               When used with number, defines the page of results to return.
    185 	 *                                             Default 1.
    186 	 *     @type bool         $count_total         Whether to count the total number of users found. If pagination
    187 	 *                                             is not needed, setting this to false can improve performance.
    188 	 *                                             Default true.
    189 	 *     @type string|array $fields              Which fields to return. Single or all fields (string), or array
    190 	 *                                             of fields. Accepts 'ID', 'display_name', 'user_login',
    191 	 *                                             'user_nicename', 'user_email', 'user_url', 'user_registered'.
    192 	 *                                             Use 'all' for all fields and 'all_with_meta' to include
    193 	 *                                             meta fields. Default 'all'.
    194 	 *     @type string       $who                 Type of users to query. Accepts 'authors'.
    195 	 *                                             Default empty (all users).
    196 	 *     @type bool|array   $has_published_posts Pass an array of post types to filter results to users who have
    197 	 *                                             published posts in those post types. `true` is an alias for all
    198 	 *                                             public post types.
    199 	 *     @type string       $nicename            The user nicename. Default empty.
    200 	 *     @type string[]     $nicename__in        An array of nicenames to include. Users matching one of these
    201 	 *                                             nicenames will be included in results. Default empty array.
    202 	 *     @type string[]     $nicename__not_in    An array of nicenames to exclude. Users matching one of these
    203 	 *                                             nicenames will not be included in results. Default empty array.
    204 	 *     @type string       $login               The user login. Default empty.
    205 	 *     @type string[]     $login__in           An array of logins to include. Users matching one of these
    206 	 *                                             logins will be included in results. Default empty array.
    207 	 *     @type string[]     $login__not_in       An array of logins to exclude. Users matching one of these
    208 	 *                                             logins will not be included in results. Default empty array.
    209 	 * }
    210 	 */
    211 	public function prepare_query( $query = array() ) {
    212 		global $wpdb;
    213 
    214 		if ( empty( $this->query_vars ) || ! empty( $query ) ) {
    215 			$this->query_limit = null;
    216 			$this->query_vars  = $this->fill_query_vars( $query );
    217 		}
    218 
    219 		/**
    220 		 * Fires before the WP_User_Query has been parsed.
    221 		 *
    222 		 * The passed WP_User_Query object contains the query variables,
    223 		 * not yet passed into SQL.
    224 		 *
    225 		 * @since 4.0.0
    226 		 *
    227 		 * @param WP_User_Query $query Current instance of WP_User_Query (passed by reference).
    228 		 */
    229 		do_action_ref_array( 'pre_get_users', array( &$this ) );
    230 
    231 		// Ensure that query vars are filled after 'pre_get_users'.
    232 		$qv =& $this->query_vars;
    233 		$qv = $this->fill_query_vars( $qv );
    234 
    235 		if ( is_array( $qv['fields'] ) ) {
    236 			$qv['fields'] = array_unique( $qv['fields'] );
    237 
    238 			$this->query_fields = array();
    239 			foreach ( $qv['fields'] as $field ) {
    240 				$field                = 'ID' === $field ? 'ID' : sanitize_key( $field );
    241 				$this->query_fields[] = "$wpdb->users.$field";
    242 			}
    243 			$this->query_fields = implode( ',', $this->query_fields );
    244 		} elseif ( 'all' === $qv['fields'] ) {
    245 			$this->query_fields = "$wpdb->users.*";
    246 		} else {
    247 			$this->query_fields = "$wpdb->users.ID";
    248 		}
    249 
    250 		if ( isset( $qv['count_total'] ) && $qv['count_total'] ) {
    251 			$this->query_fields = 'SQL_CALC_FOUND_ROWS ' . $this->query_fields;
    252 		}
    253 
    254 		$this->query_from  = "FROM $wpdb->users";
    255 		$this->query_where = 'WHERE 1=1';
    256 
    257 		// Parse and sanitize 'include', for use by 'orderby' as well as 'include' below.
    258 		if ( ! empty( $qv['include'] ) ) {
    259 			$include = wp_parse_id_list( $qv['include'] );
    260 		} else {
    261 			$include = false;
    262 		}
    263 
    264 		$blog_id = 0;
    265 		if ( isset( $qv['blog_id'] ) ) {
    266 			$blog_id = absint( $qv['blog_id'] );
    267 		}
    268 
    269 		if ( $qv['has_published_posts'] && $blog_id ) {
    270 			if ( true === $qv['has_published_posts'] ) {
    271 				$post_types = get_post_types( array( 'public' => true ) );
    272 			} else {
    273 				$post_types = (array) $qv['has_published_posts'];
    274 			}
    275 
    276 			foreach ( $post_types as &$post_type ) {
    277 				$post_type = $wpdb->prepare( '%s', $post_type );
    278 			}
    279 
    280 			$posts_table        = $wpdb->get_blog_prefix( $blog_id ) . 'posts';
    281 			$this->query_where .= " AND $wpdb->users.ID IN ( SELECT DISTINCT $posts_table.post_author FROM $posts_table WHERE $posts_table.post_status = 'publish' AND $posts_table.post_type IN ( " . implode( ', ', $post_types ) . ' ) )';
    282 		}
    283 
    284 		// nicename
    285 		if ( '' !== $qv['nicename'] ) {
    286 			$this->query_where .= $wpdb->prepare( ' AND user_nicename = %s', $qv['nicename'] );
    287 		}
    288 
    289 		if ( ! empty( $qv['nicename__in'] ) ) {
    290 			$sanitized_nicename__in = array_map( 'esc_sql', $qv['nicename__in'] );
    291 			$nicename__in           = implode( "','", $sanitized_nicename__in );
    292 			$this->query_where     .= " AND user_nicename IN ( '$nicename__in' )";
    293 		}
    294 
    295 		if ( ! empty( $qv['nicename__not_in'] ) ) {
    296 			$sanitized_nicename__not_in = array_map( 'esc_sql', $qv['nicename__not_in'] );
    297 			$nicename__not_in           = implode( "','", $sanitized_nicename__not_in );
    298 			$this->query_where         .= " AND user_nicename NOT IN ( '$nicename__not_in' )";
    299 		}
    300 
    301 		// login
    302 		if ( '' !== $qv['login'] ) {
    303 			$this->query_where .= $wpdb->prepare( ' AND user_login = %s', $qv['login'] );
    304 		}
    305 
    306 		if ( ! empty( $qv['login__in'] ) ) {
    307 			$sanitized_login__in = array_map( 'esc_sql', $qv['login__in'] );
    308 			$login__in           = implode( "','", $sanitized_login__in );
    309 			$this->query_where  .= " AND user_login IN ( '$login__in' )";
    310 		}
    311 
    312 		if ( ! empty( $qv['login__not_in'] ) ) {
    313 			$sanitized_login__not_in = array_map( 'esc_sql', $qv['login__not_in'] );
    314 			$login__not_in           = implode( "','", $sanitized_login__not_in );
    315 			$this->query_where      .= " AND user_login NOT IN ( '$login__not_in' )";
    316 		}
    317 
    318 		// Meta query.
    319 		$this->meta_query = new WP_Meta_Query();
    320 		$this->meta_query->parse_query_vars( $qv );
    321 
    322 		if ( isset( $qv['who'] ) && 'authors' === $qv['who'] && $blog_id ) {
    323 			$who_query = array(
    324 				'key'     => $wpdb->get_blog_prefix( $blog_id ) . 'user_level',
    325 				'value'   => 0,
    326 				'compare' => '!=',
    327 			);
    328 
    329 			// Prevent extra meta query.
    330 			$qv['blog_id'] = 0;
    331 			$blog_id       = 0;
    332 
    333 			if ( empty( $this->meta_query->queries ) ) {
    334 				$this->meta_query->queries = array( $who_query );
    335 			} else {
    336 				// Append the cap query to the original queries and reparse the query.
    337 				$this->meta_query->queries = array(
    338 					'relation' => 'AND',
    339 					array( $this->meta_query->queries, $who_query ),
    340 				);
    341 			}
    342 
    343 			$this->meta_query->parse_query_vars( $this->meta_query->queries );
    344 		}
    345 
    346 		$roles = array();
    347 		if ( isset( $qv['role'] ) ) {
    348 			if ( is_array( $qv['role'] ) ) {
    349 				$roles = $qv['role'];
    350 			} elseif ( is_string( $qv['role'] ) && ! empty( $qv['role'] ) ) {
    351 				$roles = array_map( 'trim', explode( ',', $qv['role'] ) );
    352 			}
    353 		}
    354 
    355 		$role__in = array();
    356 		if ( isset( $qv['role__in'] ) ) {
    357 			$role__in = (array) $qv['role__in'];
    358 		}
    359 
    360 		$role__not_in = array();
    361 		if ( isset( $qv['role__not_in'] ) ) {
    362 			$role__not_in = (array) $qv['role__not_in'];
    363 		}
    364 
    365 		if ( $blog_id && ( ! empty( $roles ) || ! empty( $role__in ) || ! empty( $role__not_in ) || is_multisite() ) ) {
    366 			$role_queries = array();
    367 
    368 			$roles_clauses = array( 'relation' => 'AND' );
    369 			if ( ! empty( $roles ) ) {
    370 				foreach ( $roles as $role ) {
    371 					$roles_clauses[] = array(
    372 						'key'     => $wpdb->get_blog_prefix( $blog_id ) . 'capabilities',
    373 						'value'   => '"' . $role . '"',
    374 						'compare' => 'LIKE',
    375 					);
    376 				}
    377 
    378 				$role_queries[] = $roles_clauses;
    379 			}
    380 
    381 			$role__in_clauses = array( 'relation' => 'OR' );
    382 			if ( ! empty( $role__in ) ) {
    383 				foreach ( $role__in as $role ) {
    384 					$role__in_clauses[] = array(
    385 						'key'     => $wpdb->get_blog_prefix( $blog_id ) . 'capabilities',
    386 						'value'   => '"' . $role . '"',
    387 						'compare' => 'LIKE',
    388 					);
    389 				}
    390 
    391 				$role_queries[] = $role__in_clauses;
    392 			}
    393 
    394 			$role__not_in_clauses = array( 'relation' => 'AND' );
    395 			if ( ! empty( $role__not_in ) ) {
    396 				foreach ( $role__not_in as $role ) {
    397 					$role__not_in_clauses[] = array(
    398 						'key'     => $wpdb->get_blog_prefix( $blog_id ) . 'capabilities',
    399 						'value'   => '"' . $role . '"',
    400 						'compare' => 'NOT LIKE',
    401 					);
    402 				}
    403 
    404 				$role_queries[] = $role__not_in_clauses;
    405 			}
    406 
    407 			// If there are no specific roles named, make sure the user is a member of the site.
    408 			if ( empty( $role_queries ) ) {
    409 				$role_queries[] = array(
    410 					'key'     => $wpdb->get_blog_prefix( $blog_id ) . 'capabilities',
    411 					'compare' => 'EXISTS',
    412 				);
    413 			}
    414 
    415 			// Specify that role queries should be joined with AND.
    416 			$role_queries['relation'] = 'AND';
    417 
    418 			if ( empty( $this->meta_query->queries ) ) {
    419 				$this->meta_query->queries = $role_queries;
    420 			} else {
    421 				// Append the cap query to the original queries and reparse the query.
    422 				$this->meta_query->queries = array(
    423 					'relation' => 'AND',
    424 					array( $this->meta_query->queries, $role_queries ),
    425 				);
    426 			}
    427 
    428 			$this->meta_query->parse_query_vars( $this->meta_query->queries );
    429 		}
    430 
    431 		if ( ! empty( $this->meta_query->queries ) ) {
    432 			$clauses            = $this->meta_query->get_sql( 'user', $wpdb->users, 'ID', $this );
    433 			$this->query_from  .= $clauses['join'];
    434 			$this->query_where .= $clauses['where'];
    435 
    436 			if ( $this->meta_query->has_or_relation() ) {
    437 				$this->query_fields = 'DISTINCT ' . $this->query_fields;
    438 			}
    439 		}
    440 
    441 		// Sorting.
    442 		$qv['order'] = isset( $qv['order'] ) ? strtoupper( $qv['order'] ) : '';
    443 		$order       = $this->parse_order( $qv['order'] );
    444 
    445 		if ( empty( $qv['orderby'] ) ) {
    446 			// Default order is by 'user_login'.
    447 			$ordersby = array( 'user_login' => $order );
    448 		} elseif ( is_array( $qv['orderby'] ) ) {
    449 			$ordersby = $qv['orderby'];
    450 		} else {
    451 			// 'orderby' values may be a comma- or space-separated list.
    452 			$ordersby = preg_split( '/[,\s]+/', $qv['orderby'] );
    453 		}
    454 
    455 		$orderby_array = array();
    456 		foreach ( $ordersby as $_key => $_value ) {
    457 			if ( ! $_value ) {
    458 				continue;
    459 			}
    460 
    461 			if ( is_int( $_key ) ) {
    462 				// Integer key means this is a flat array of 'orderby' fields.
    463 				$_orderby = $_value;
    464 				$_order   = $order;
    465 			} else {
    466 				// Non-integer key means this the key is the field and the value is ASC/DESC.
    467 				$_orderby = $_key;
    468 				$_order   = $_value;
    469 			}
    470 
    471 			$parsed = $this->parse_orderby( $_orderby );
    472 
    473 			if ( ! $parsed ) {
    474 				continue;
    475 			}
    476 
    477 			if ( 'nicename__in' === $_orderby || 'login__in' === $_orderby ) {
    478 				$orderby_array[] = $parsed;
    479 			} else {
    480 				$orderby_array[] = $parsed . ' ' . $this->parse_order( $_order );
    481 			}
    482 		}
    483 
    484 		// If no valid clauses were found, order by user_login.
    485 		if ( empty( $orderby_array ) ) {
    486 			$orderby_array[] = "user_login $order";
    487 		}
    488 
    489 		$this->query_orderby = 'ORDER BY ' . implode( ', ', $orderby_array );
    490 
    491 		// Limit.
    492 		if ( isset( $qv['number'] ) && $qv['number'] > 0 ) {
    493 			if ( $qv['offset'] ) {
    494 				$this->query_limit = $wpdb->prepare( 'LIMIT %d, %d', $qv['offset'], $qv['number'] );
    495 			} else {
    496 				$this->query_limit = $wpdb->prepare( 'LIMIT %d, %d', $qv['number'] * ( $qv['paged'] - 1 ), $qv['number'] );
    497 			}
    498 		}
    499 
    500 		$search = '';
    501 		if ( isset( $qv['search'] ) ) {
    502 			$search = trim( $qv['search'] );
    503 		}
    504 
    505 		if ( $search ) {
    506 			$leading_wild  = ( ltrim( $search, '*' ) != $search );
    507 			$trailing_wild = ( rtrim( $search, '*' ) != $search );
    508 			if ( $leading_wild && $trailing_wild ) {
    509 				$wild = 'both';
    510 			} elseif ( $leading_wild ) {
    511 				$wild = 'leading';
    512 			} elseif ( $trailing_wild ) {
    513 				$wild = 'trailing';
    514 			} else {
    515 				$wild = false;
    516 			}
    517 			if ( $wild ) {
    518 				$search = trim( $search, '*' );
    519 			}
    520 
    521 			$search_columns = array();
    522 			if ( $qv['search_columns'] ) {
    523 				$search_columns = array_intersect( $qv['search_columns'], array( 'ID', 'user_login', 'user_email', 'user_url', 'user_nicename', 'display_name' ) );
    524 			}
    525 			if ( ! $search_columns ) {
    526 				if ( false !== strpos( $search, '@' ) ) {
    527 					$search_columns = array( 'user_email' );
    528 				} elseif ( is_numeric( $search ) ) {
    529 					$search_columns = array( 'user_login', 'ID' );
    530 				} elseif ( preg_match( '|^https?://|', $search ) && ! ( is_multisite() && wp_is_large_network( 'users' ) ) ) {
    531 					$search_columns = array( 'user_url' );
    532 				} else {
    533 					$search_columns = array( 'user_login', 'user_url', 'user_email', 'user_nicename', 'display_name' );
    534 				}
    535 			}
    536 
    537 			/**
    538 			 * Filters the columns to search in a WP_User_Query search.
    539 			 *
    540 			 * The default columns depend on the search term, and include 'ID', 'user_login',
    541 			 * 'user_email', 'user_url', 'user_nicename', and 'display_name'.
    542 			 *
    543 			 * @since 3.6.0
    544 			 *
    545 			 * @param string[]      $search_columns Array of column names to be searched.
    546 			 * @param string        $search         Text being searched.
    547 			 * @param WP_User_Query $query          The current WP_User_Query instance.
    548 			 */
    549 			$search_columns = apply_filters( 'user_search_columns', $search_columns, $search, $this );
    550 
    551 			$this->query_where .= $this->get_search_sql( $search, $search_columns, $wild );
    552 		}
    553 
    554 		if ( ! empty( $include ) ) {
    555 			// Sanitized earlier.
    556 			$ids                = implode( ',', $include );
    557 			$this->query_where .= " AND $wpdb->users.ID IN ($ids)";
    558 		} elseif ( ! empty( $qv['exclude'] ) ) {
    559 			$ids                = implode( ',', wp_parse_id_list( $qv['exclude'] ) );
    560 			$this->query_where .= " AND $wpdb->users.ID NOT IN ($ids)";
    561 		}
    562 
    563 		// Date queries are allowed for the user_registered field.
    564 		if ( ! empty( $qv['date_query'] ) && is_array( $qv['date_query'] ) ) {
    565 			$date_query         = new WP_Date_Query( $qv['date_query'], 'user_registered' );
    566 			$this->query_where .= $date_query->get_sql();
    567 		}
    568 
    569 		/**
    570 		 * Fires after the WP_User_Query has been parsed, and before
    571 		 * the query is executed.
    572 		 *
    573 		 * The passed WP_User_Query object contains SQL parts formed
    574 		 * from parsing the given query.
    575 		 *
    576 		 * @since 3.1.0
    577 		 *
    578 		 * @param WP_User_Query $query Current instance of WP_User_Query (passed by reference).
    579 		 */
    580 		do_action_ref_array( 'pre_user_query', array( &$this ) );
    581 	}
    582 
    583 	/**
    584 	 * Execute the query, with the current variables.
    585 	 *
    586 	 * @since 3.1.0
    587 	 *
    588 	 * @global wpdb $wpdb WordPress database abstraction object.
    589 	 */
    590 	public function query() {
    591 		global $wpdb;
    592 
    593 		$qv =& $this->query_vars;
    594 
    595 		/**
    596 		 * Filters the users array before the query takes place.
    597 		 *
    598 		 * Return a non-null value to bypass WordPress' default user queries.
    599 		 *
    600 		 * Filtering functions that require pagination information are encouraged to set
    601 		 * the `total_users` property of the WP_User_Query object, passed to the filter
    602 		 * by reference. If WP_User_Query does not perform a database query, it will not
    603 		 * have enough information to generate these values itself.
    604 		 *
    605 		 * @since 5.1.0
    606 		 *
    607 		 * @param array|null    $results Return an array of user data to short-circuit WP's user query
    608 		 *                               or null to allow WP to run its normal queries.
    609 		 * @param WP_User_Query $query   The WP_User_Query instance (passed by reference).
    610 		 */
    611 		$this->results = apply_filters_ref_array( 'users_pre_query', array( null, &$this ) );
    612 
    613 		if ( null === $this->results ) {
    614 			$this->request = "SELECT $this->query_fields $this->query_from $this->query_where $this->query_orderby $this->query_limit";
    615 
    616 			if ( is_array( $qv['fields'] ) || 'all' === $qv['fields'] ) {
    617 				$this->results = $wpdb->get_results( $this->request );
    618 			} else {
    619 				$this->results = $wpdb->get_col( $this->request );
    620 			}
    621 
    622 			if ( isset( $qv['count_total'] ) && $qv['count_total'] ) {
    623 				/**
    624 				 * Filters SELECT FOUND_ROWS() query for the current WP_User_Query instance.
    625 				 *
    626 				 * @since 3.2.0
    627 				 * @since 5.1.0 Added the `$this` parameter.
    628 				 *
    629 				 * @global wpdb $wpdb WordPress database abstraction object.
    630 				 *
    631 				 * @param string        $sql   The SELECT FOUND_ROWS() query for the current WP_User_Query.
    632 				 * @param WP_User_Query $query The current WP_User_Query instance.
    633 				 */
    634 				$found_users_query = apply_filters( 'found_users_query', 'SELECT FOUND_ROWS()', $this );
    635 
    636 				$this->total_users = (int) $wpdb->get_var( $found_users_query );
    637 			}
    638 		}
    639 
    640 		if ( ! $this->results ) {
    641 			return;
    642 		}
    643 
    644 		if ( 'all_with_meta' === $qv['fields'] ) {
    645 			cache_users( $this->results );
    646 
    647 			$r = array();
    648 			foreach ( $this->results as $userid ) {
    649 				$r[ $userid ] = new WP_User( $userid, '', $qv['blog_id'] );
    650 			}
    651 
    652 			$this->results = $r;
    653 		} elseif ( 'all' === $qv['fields'] ) {
    654 			foreach ( $this->results as $key => $user ) {
    655 				$this->results[ $key ] = new WP_User( $user, '', $qv['blog_id'] );
    656 			}
    657 		}
    658 	}
    659 
    660 	/**
    661 	 * Retrieve query variable.
    662 	 *
    663 	 * @since 3.5.0
    664 	 *
    665 	 * @param string $query_var Query variable key.
    666 	 * @return mixed
    667 	 */
    668 	public function get( $query_var ) {
    669 		if ( isset( $this->query_vars[ $query_var ] ) ) {
    670 			return $this->query_vars[ $query_var ];
    671 		}
    672 
    673 		return null;
    674 	}
    675 
    676 	/**
    677 	 * Set query variable.
    678 	 *
    679 	 * @since 3.5.0
    680 	 *
    681 	 * @param string $query_var Query variable key.
    682 	 * @param mixed  $value     Query variable value.
    683 	 */
    684 	public function set( $query_var, $value ) {
    685 		$this->query_vars[ $query_var ] = $value;
    686 	}
    687 
    688 	/**
    689 	 * Used internally to generate an SQL string for searching across multiple columns
    690 	 *
    691 	 * @since 3.1.0
    692 	 *
    693 	 * @global wpdb $wpdb WordPress database abstraction object.
    694 	 *
    695 	 * @param string $string
    696 	 * @param array  $cols
    697 	 * @param bool   $wild   Whether to allow wildcard searches. Default is false for Network Admin, true for single site.
    698 	 *                       Single site allows leading and trailing wildcards, Network Admin only trailing.
    699 	 * @return string
    700 	 */
    701 	protected function get_search_sql( $string, $cols, $wild = false ) {
    702 		global $wpdb;
    703 
    704 		$searches      = array();
    705 		$leading_wild  = ( 'leading' === $wild || 'both' === $wild ) ? '%' : '';
    706 		$trailing_wild = ( 'trailing' === $wild || 'both' === $wild ) ? '%' : '';
    707 		$like          = $leading_wild . $wpdb->esc_like( $string ) . $trailing_wild;
    708 
    709 		foreach ( $cols as $col ) {
    710 			if ( 'ID' === $col ) {
    711 				$searches[] = $wpdb->prepare( "$col = %s", $string );
    712 			} else {
    713 				$searches[] = $wpdb->prepare( "$col LIKE %s", $like );
    714 			}
    715 		}
    716 
    717 		return ' AND (' . implode( ' OR ', $searches ) . ')';
    718 	}
    719 
    720 	/**
    721 	 * Return the list of users.
    722 	 *
    723 	 * @since 3.1.0
    724 	 *
    725 	 * @return array Array of results.
    726 	 */
    727 	public function get_results() {
    728 		return $this->results;
    729 	}
    730 
    731 	/**
    732 	 * Return the total number of users for the current query.
    733 	 *
    734 	 * @since 3.1.0
    735 	 *
    736 	 * @return int Number of total users.
    737 	 */
    738 	public function get_total() {
    739 		return $this->total_users;
    740 	}
    741 
    742 	/**
    743 	 * Parse and sanitize 'orderby' keys passed to the user query.
    744 	 *
    745 	 * @since 4.2.0
    746 	 *
    747 	 * @global wpdb $wpdb WordPress database abstraction object.
    748 	 *
    749 	 * @param string $orderby Alias for the field to order by.
    750 	 * @return string Value to used in the ORDER clause, if `$orderby` is valid.
    751 	 */
    752 	protected function parse_orderby( $orderby ) {
    753 		global $wpdb;
    754 
    755 		$meta_query_clauses = $this->meta_query->get_clauses();
    756 
    757 		$_orderby = '';
    758 		if ( in_array( $orderby, array( 'login', 'nicename', 'email', 'url', 'registered' ), true ) ) {
    759 			$_orderby = 'user_' . $orderby;
    760 		} elseif ( in_array( $orderby, array( 'user_login', 'user_nicename', 'user_email', 'user_url', 'user_registered' ), true ) ) {
    761 			$_orderby = $orderby;
    762 		} elseif ( 'name' === $orderby || 'display_name' === $orderby ) {
    763 			$_orderby = 'display_name';
    764 		} elseif ( 'post_count' === $orderby ) {
    765 			// @todo Avoid the JOIN.
    766 			$where             = get_posts_by_author_sql( 'post' );
    767 			$this->query_from .= " LEFT OUTER JOIN (
    768 				SELECT post_author, COUNT(*) as post_count
    769 				FROM $wpdb->posts
    770 				$where
    771 				GROUP BY post_author
    772 			) p ON ({$wpdb->users}.ID = p.post_author)
    773 			";
    774 			$_orderby          = 'post_count';
    775 		} elseif ( 'ID' === $orderby || 'id' === $orderby ) {
    776 			$_orderby = 'ID';
    777 		} elseif ( 'meta_value' === $orderby || $this->get( 'meta_key' ) == $orderby ) {
    778 			$_orderby = "$wpdb->usermeta.meta_value";
    779 		} elseif ( 'meta_value_num' === $orderby ) {
    780 			$_orderby = "$wpdb->usermeta.meta_value+0";
    781 		} elseif ( 'include' === $orderby && ! empty( $this->query_vars['include'] ) ) {
    782 			$include     = wp_parse_id_list( $this->query_vars['include'] );
    783 			$include_sql = implode( ',', $include );
    784 			$_orderby    = "FIELD( $wpdb->users.ID, $include_sql )";
    785 		} elseif ( 'nicename__in' === $orderby ) {
    786 			$sanitized_nicename__in = array_map( 'esc_sql', $this->query_vars['nicename__in'] );
    787 			$nicename__in           = implode( "','", $sanitized_nicename__in );
    788 			$_orderby               = "FIELD( user_nicename, '$nicename__in' )";
    789 		} elseif ( 'login__in' === $orderby ) {
    790 			$sanitized_login__in = array_map( 'esc_sql', $this->query_vars['login__in'] );
    791 			$login__in           = implode( "','", $sanitized_login__in );
    792 			$_orderby            = "FIELD( user_login, '$login__in' )";
    793 		} elseif ( isset( $meta_query_clauses[ $orderby ] ) ) {
    794 			$meta_clause = $meta_query_clauses[ $orderby ];
    795 			$_orderby    = sprintf( 'CAST(%s.meta_value AS %s)', esc_sql( $meta_clause['alias'] ), esc_sql( $meta_clause['cast'] ) );
    796 		}
    797 
    798 		return $_orderby;
    799 	}
    800 
    801 	/**
    802 	 * Parse an 'order' query variable and cast it to ASC or DESC as necessary.
    803 	 *
    804 	 * @since 4.2.0
    805 	 *
    806 	 * @param string $order The 'order' query variable.
    807 	 * @return string The sanitized 'order' query variable.
    808 	 */
    809 	protected function parse_order( $order ) {
    810 		if ( ! is_string( $order ) || empty( $order ) ) {
    811 			return 'DESC';
    812 		}
    813 
    814 		if ( 'ASC' === strtoupper( $order ) ) {
    815 			return 'ASC';
    816 		} else {
    817 			return 'DESC';
    818 		}
    819 	}
    820 
    821 	/**
    822 	 * Make private properties readable for backward compatibility.
    823 	 *
    824 	 * @since 4.0.0
    825 	 *
    826 	 * @param string $name Property to get.
    827 	 * @return mixed Property.
    828 	 */
    829 	public function __get( $name ) {
    830 		if ( in_array( $name, $this->compat_fields, true ) ) {
    831 			return $this->$name;
    832 		}
    833 	}
    834 
    835 	/**
    836 	 * Make private properties settable for backward compatibility.
    837 	 *
    838 	 * @since 4.0.0
    839 	 *
    840 	 * @param string $name  Property to check if set.
    841 	 * @param mixed  $value Property value.
    842 	 * @return mixed Newly-set property.
    843 	 */
    844 	public function __set( $name, $value ) {
    845 		if ( in_array( $name, $this->compat_fields, true ) ) {
    846 			return $this->$name = $value;
    847 		}
    848 	}
    849 
    850 	/**
    851 	 * Make private properties checkable for backward compatibility.
    852 	 *
    853 	 * @since 4.0.0
    854 	 *
    855 	 * @param string $name Property to check if set.
    856 	 * @return bool Whether the property is set.
    857 	 */
    858 	public function __isset( $name ) {
    859 		if ( in_array( $name, $this->compat_fields, true ) ) {
    860 			return isset( $this->$name );
    861 		}
    862 	}
    863 
    864 	/**
    865 	 * Make private properties un-settable for backward compatibility.
    866 	 *
    867 	 * @since 4.0.0
    868 	 *
    869 	 * @param string $name Property to unset.
    870 	 */
    871 	public function __unset( $name ) {
    872 		if ( in_array( $name, $this->compat_fields, true ) ) {
    873 			unset( $this->$name );
    874 		}
    875 	}
    876 
    877 	/**
    878 	 * Make private/protected methods readable for backward compatibility.
    879 	 *
    880 	 * @since 4.0.0
    881 	 *
    882 	 * @param string $name      Method to call.
    883 	 * @param array  $arguments Arguments to pass when calling.
    884 	 * @return mixed Return value of the callback, false otherwise.
    885 	 */
    886 	public function __call( $name, $arguments ) {
    887 		if ( 'get_search_sql' === $name ) {
    888 			return $this->get_search_sql( ...$arguments );
    889 		}
    890 		return false;
    891 	}
    892 }