s->cap_key, $this->caps ); $this->get_role_caps(); $this->update_user_level_from_caps(); } /** * Remove capability from user. * * @since 2.0.0 * * @param string $cap Capability name. */ public function remove_cap( $cap ) { if ( ! isset( $this->caps[ $cap ] ) ) { return; } unset( $this->caps[ $cap ] ); update_user_meta( $this->ID, $this->cap_key, $this->caps ); $this->get_role_caps(); $this->update_user_level_from_caps(); } /** * Remove all of the capabilities of the user. * * @since 2.1.0 * * @global wpdb $wpdb WordPress database abstraction object. */ public function remove_all_caps() { global $wpdb; $this->caps = array(); delete_user_meta( $this->ID, $this->cap_key ); delete_user_meta( $this->ID, $wpdb->get_blog_prefix() . 'user_level' ); $this->get_role_caps(); } /** * Whether the user has a specific capability. * * While checking against a role in place of a capability is supported in part, this practice is discouraged as it * may produce unreliable results. * * @since 2.0.0 * * @see map_meta_cap() * * @param string $cap Capability name. * @param int $object_id,... Optional. ID of a specific object to check against if `$cap` is a "meta" capability. * Meta capabilities such as `edit_post` and `edit_user` are capabilities used by * by the `map_meta_cap()` function to map to primitive capabilities that a user or * role has, such as `edit_posts` and `edit_others_posts`. * @return bool Whether the user has the given capability, or, if `$object_id` is passed, whether the user has * the given capability for that object. */ public function has_cap( $cap ) { if ( is_numeric( $cap ) ) { _deprecated_argument( __FUNCTION__, '2.0.0', __( 'Usage of user levels is deprecated. Use capabilities instead.' ) ); $cap = $this->translate_level_to_cap( $cap ); } $args = array_slice( func_get_args(), 1 ); $args = array_merge( array( $cap, $this->ID ), $args ); $caps = call_user_func_array( 'map_meta_cap', $args ); // Multisite super admin has all caps by definition, Unless specifically denied. if ( is_multisite() && is_super_admin( $this->ID ) ) { if ( in_array('do_not_allow', $caps) ) return false; return true; } /** * Dynamically filter a user's capabilities. * * @since 2.0.0 * @since 3.7.0 Added the user object. * * @param array $allcaps An array of all the user's capabilities. * @param array $caps Actual capabilities for meta capability. * @param array $args Optional parameters passed to has_cap(), typically object ID. * @param WP_User $user The user object. */ $capabilities = apply_filters( 'user_has_cap', $this->allcaps, $caps, $args, $this ); // Everyone is allowed to exist. $capabilities['exist'] = true; // Nobody is allowed to do things they are not allowed to do. unset( $capabilities['do_not_allow'] ); // Must have ALL requested caps. foreach ( (array) $caps as $cap ) { if ( empty( $capabilities[ $cap ] ) ) return false; } return true; } /** * Convert numeric level to level capability name. * * Prepends 'level_' to level number. * * @since 2.0.0 * * @param int $level Level number, 1 to 10. * @return string */ public function translate_level_to_cap( $level ) { return 'level_' . $level; } /** * Set the site to operate on. Defaults to the current site. * * @since 3.0.0 * @deprecated 4.9.0 Use WP_User::for_site() * * @global wpdb $wpdb WordPress database abstraction object. * * @param int $blog_id Optional. Site ID, defaults to current site. */ public function for_blog( $blog_id = '' ) { _deprecated_function( __METHOD__, '4.9.0', 'WP_User::for_site()' ); $this->for_site( $blog_id ); } /** * Sets the site to operate on. Defaults to the current site. * * @since 4.9.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @param int $site_id Site ID to initialize user capabilities for. Default is the current site. */ public function for_site( $site_id = '' ) { global $wpdb; if ( ! empty( $site_id ) ) { $this->site_id = absint( $site_id ); } else { $this->site_id = get_current_blog_id(); } $this->cap_key = $wpdb->get_blog_prefix( $this->site_id ) . 'capabilities'; $this->caps = $this->get_caps_data(); $this->get_role_caps(); } /** * Gets the ID of the site for which the user's capabilities are currently initialized. * * @since 4.9.0 * * @return int Site ID. */ public function get_site_id() { return $this->site_id; } /** * Gets the available user capabilities data. * * @since 4.9.0 * * @return array User capabilities array. */ private function get_caps_data() { $caps = get_user_meta( $this->ID, $this->cap_key, true ); if ( ! is_array( $caps ) ) { return array(); } return $caps; } } with number, defines the page of results to return. * Default 1. * @type bool $count_total Whether to count the total number of users found. If pagination * is not needed, setting this to false can improve performance. * Default true. * @type string|array $fields Which fields to return. Single or all fields (string), or array * of fields. Accepts 'ID', 'display_name', 'user_login', * 'user_nicename', 'user_email', 'user_url', 'user_registered'. * Use 'all' for all fields and 'all_with_meta' to include * meta fields. Default 'all'. * @type string $who Type of users to query. Accepts 'authors'. * Default empty (all users). * @type bool|array $has_published_posts Pass an array of post types to filter results to users who have * published posts in those post types. `true` is an alias for all * public post types. * @type string $nicename The user nicename. Default empty. * @type array $nicename__in An array of nicenames to include. Users matching one of these * nicenames will be included in results. Default empty array. * @type array $nicename__not_in An array of nicenames to exclude. Users matching one of these * nicenames will not be included in results. Default empty array. * @type string $login The user login. Default empty. * @type array $login__in An array of logins to include. Users matching one of these * logins will be included in results. Default empty array. * @type array $login__not_in An array of logins to exclude. Users matching one of these * logins will not be included in results. Default empty array. * } */ public function prepare_query( $query = array() ) { global $wpdb; if ( empty( $this->query_vars ) || ! empty( $query ) ) { $this->query_limit = null; $this->query_vars = $this->fill_query_vars( $query ); } /** * Fires before the WP_User_Query has been parsed. * * The passed WP_User_Query object contains the query variables, not * yet passed into SQL. * * @since 4.0.0 * * @param WP_User_Query $this The current WP_User_Query instance, * passed by reference. */ do_action( 'pre_get_users', $this ); // Ensure that query vars are filled after 'pre_get_users'. $qv =& $this->query_vars; $qv = $this->fill_query_vars( $qv ); if ( is_array( $qv['fields'] ) ) { $qv['fields'] = array_unique( $qv['fields'] ); $this->query_fields = array(); foreach ( $qv['fields'] as $field ) { $field = 'ID' === $field ? 'ID' : sanitize_key( $field ); $this->query_fields[] = "$wpdb->users.$field"; } $this->query_fields = implode( ',', $this->query_fields ); } elseif ( 'all' == $qv['fields'] ) { $this->query_fields = "$wpdb->users.*"; } else { $this->query_fields = "$wpdb->users.ID"; } if ( isset( $qv['count_total'] ) && $qv['count_total'] ) $this->query_fields = 'SQL_CALC_FOUND_ROWS ' . $this->query_fields; $this->query_from = "FROM $wpdb->users"; $this->query_where = "WHERE 1=1"; // Parse and sanitize 'include', for use by 'orderby' as well as 'include' below. if ( ! empty( $qv['include'] ) ) { $include = wp_parse_id_list( $qv['include'] ); } else { $include = false; } $blog_id = 0; if ( isset( $qv['blog_id'] ) ) { $blog_id = absint( $qv['blog_id'] ); } if ( $qv['has_published_posts'] && $blog_id ) { if ( true === $qv['has_published_posts'] ) { $post_types = get_post_types( array( 'public' => true ) ); } else { $post_types = (array) $qv['has_published_posts']; } foreach ( $post_types as &$post_type ) { $post_type = $wpdb->prepare( '%s', $post_type ); } $posts_table = $wpdb->get_blog_prefix( $blog_id ) . 'posts'; $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 ( " . join( ", ", $post_types ) . " ) )"; } // nicename if ( '' !== $qv['nicename']) { $this->query_where .= $wpdb->prepare( ' AND user_nicename = %s', $qv['nicename'] ); } if ( ! empty( $qv['nicename__in'] ) ) { $sanitized_nicename__in = array_map( 'esc_sql', $qv['nicename__in'] ); $nicename__in = implode( "','", $sanitized_nicename__in ); $this->query_where .= " AND user_nicename IN ( '$nicename__in' )"; } if ( ! empty( $qv['nicename__not_in'] ) ) { $sanitized_nicename__not_in = array_map( 'esc_sql', $qv['nicename__not_in'] ); $nicename__not_in = implode( "','", $sanitized_nicename__not_in ); $this->query_where .= " AND user_nicename NOT IN ( '$nicename__not_in' )"; } // login if ( '' !== $qv['login']) { $this->query_where .= $wpdb->prepare( ' AND user_login = %s', $qv['login'] ); } if ( ! empty( $qv['login__in'] ) ) { $sanitized_login__in = array_map( 'esc_sql', $qv['login__in'] ); $login__in = implode( "','", $sanitized_login__in ); $this->query_where .= " AND user_login IN ( '$login__in' )"; } if ( ! empty( $qv['login__not_in'] ) ) { $sanitized_login__not_in = array_map( 'esc_sql', $qv['login__not_in'] ); $login__not_in = implode( "','", $sanitized_login__not_in ); $this->query_where .= " AND user_login NOT IN ( '$login__not_in' )"; } // Meta query. $this->meta_query = new WP_Meta_Query(); $this->meta_query->parse_query_vars( $qv ); if ( isset( $qv['who'] ) && 'authors' == $qv['who'] && $blog_id ) { $who_query = array( 'key' => $wpdb->get_blog_prefix( $blog_id ) . 'user_level', 'value' => 0, 'compare' => '!=', ); // Prevent extra meta query. $qv['blog_id'] = $blog_id = 0; if ( empty( $this->meta_query->queries ) ) { $this->meta_query->queries = array( $who_query ); } else { // Append the cap query to the original queries and reparse the query. $this->meta_query->queries = array( 'relation' => 'AND', array( $this->meta_query->queries, $who_query ), ); } $this->meta_query->parse_query_vars( $this->meta_query->queries ); } $roles = array(); if ( isset( $qv['role'] ) ) { if ( is_array( $qv['role'] ) ) { $roles = $qv['role']; } elseif ( is_string( $qv['role'] ) && ! empty( $qv['role'] ) ) { $roles = array_map( 'trim', explode( ',', $qv['role'] ) ); } } $role__in = array(); if ( isset( $qv['role__in'] ) ) { $role__in = (array) $qv['role__in']; } $role__not_in = array(); if ( isset( $qv['role__not_in'] ) ) { $role__not_in = (array) $qv['role__not_in']; } if ( $blog_id && ( ! empty( $roles ) || ! empty( $role__in ) || ! empty( $role__not_in ) || is_multisite() ) ) { $role_queries = array(); $roles_clauses = array( 'relation' => 'AND' ); if ( ! empty( $roles ) ) { foreach ( $roles as $role ) { $roles_clauses[] = array( 'key' => $wpdb->get_blog_prefix( $blog_id ) . 'capabilities', 'value' => '"' . $role . '"', 'compare' => 'LIKE', ); } $role_queries[] = $roles_clauses; } $role__in_clauses = array( 'relation' => 'OR' ); if ( ! empty( $role__in ) ) { foreach ( $role__in as $role ) { $role__in_clauses[] = array( 'key' => $wpdb->get_blog_prefix( $blog_id ) . 'capabilities', 'value' => '"' . $role . '"', 'compare' => 'LIKE', ); } $role_queries[] = $role__in_clauses; } $role__not_in_clauses = array( 'relation' => 'AND' ); if ( ! empty( $role__not_in ) ) { foreach ( $role__not_in as $role ) { $role__not_in_clauses[] = array( 'key' => $wpdb->get_blog_prefix( $blog_id ) . 'capabilities', 'value' => '"' . $role . '"', 'compare' => 'NOT LIKE', ); } $role_queries[] = $role__not_in_clauses; } // If there are no specific roles named, make sure the user is a member of the site. if ( empty( $role_queries ) ) { $role_queries[] = array( 'key' => $wpdb->get_blog_prefix( $blog_id ) . 'capabilities', 'compare' => 'EXISTS', ); } // Specify that role queries should be joined with AND. $role_queries['relation'] = 'AND'; if ( empty( $this->meta_query->queries ) ) { $this->meta_query->queries = $role_queries; } else { // Append the cap query to the original queries and reparse the query. $this->meta_query->queries = array( 'relation' => 'AND', array( $this->meta_query->queries, $role_queries ), ); } $this->meta_query->parse_query_vars( $this->meta_query->queries ); } if ( ! empty( $this->meta_query->queries ) ) { $clauses = $this->meta_query->get_sql( 'user', $wpdb->users, 'ID', $this ); $this->query_from .= $clauses['join']; $this->query_where .= $clauses['where']; if ( $this->meta_query->has_or_relation() ) { $this->query_fields = 'DISTINCT ' . $this->query_fields; } } // sorting $qv['order'] = isset( $qv['order'] ) ? strtoupper( $qv['order'] ) : ''; $order = $this->parse_order( $qv['order'] ); if ( empty( $qv['orderby'] ) ) { // Default order is by 'user_login'. $ordersby = array( 'user_login' => $order ); } elseif ( is_array( $qv['orderby'] ) ) { $ordersby = $qv['orderby']; } else { // 'orderby' values may be a comma- or space-separated list. $ordersby = preg_split( '/[,\s]+/', $qv['orderby'] ); } $orderby_array = array(); foreach ( $ordersby as $_key => $_value ) { if ( ! $_value ) { continue; } if ( is_int( $_key ) ) { // Integer key means this is a flat array of 'orderby' fields. $_orderby = $_value; $_order = $order; } else { // Non-integer key means this the key is the field and the value is ASC/DESC. $_orderby = $_key; $_order = $_value; } $parsed = $this->parse_orderby( $_orderby ); if ( ! $parsed ) { continue; } if ( 'nicename__in' === $_orderby || 'login__in' === $_orderby ) { $orderby_array[] = $parsed; } else { $orderby_array[] = $parsed . ' ' . $this->parse_order( $_order ); } } // If no valid clauses were found, order by user_login. if ( empty( $orderby_array ) ) { $orderby_array[] = "user_login $order"; } $this->query_orderby = 'ORDER BY ' . implode( ', ', $orderby_array ); // limit if ( isset( $qv['number'] ) && $qv['number'] > 0 ) { if ( $qv['offset'] ) { $this->query_limit = $wpdb->prepare("LIMIT %d, %d", $qv['offset'], $qv['number']); } else { $this->query_limit = $wpdb->prepare( "LIMIT %d, %d", $qv['number'] * ( $qv['paged'] - 1 ), $qv['number'] ); } } $search = ''; if ( isset( $qv['search'] ) ) $search = trim( $qv['search'] ); if ( $search ) { $leading_wild = ( ltrim($search, '*') != $search ); $trailing_wild = ( rtrim($search, '*') != $search ); if ( $leading_wild && $trailing_wild ) $wild = 'both'; elseif ( $leading_wild ) $wild = 'leading'; elseif ( $trailing_wild ) $wild = 'trailing'; else $wild = false; if ( $wild ) $search = trim($search, '*'); $search_columns = array(); if ( $qv['search_columns'] ) { $search_columns = array_intersect( $qv['search_columns'], array( 'ID', 'user_login', 'user_email', 'user_url', 'user_nicename', 'display_name' ) ); } if ( ! $search_columns ) { if ( false !== strpos( $search, '@') ) $search_columns = array('user_email'); elseif ( is_numeric($search) ) $search_columns = array('user_login', 'ID'); elseif ( preg_match('|^https?://|', $search) && ! ( is_multisite() && wp_is_large_network( 'users' ) ) ) $search_columns = array('user_url'); else $search_columns = array('user_login', 'user_url', 'user_email', 'user_nicename', 'display_name'); } /** * Filters the columns to search in a WP_User_Query search. * * The default columns depend on the search term, and include 'user_email', * 'user_login', 'ID', 'user_url', 'display_name', and 'user_nicename'. * * @since 3.6.0 * * @param array $search_columns Array of column names to be searched. * @param string $search Text being searched. * @param WP_User_Query $this The current WP_User_Query instance. */ $search_columns = apply_filters( 'user_search_columns', $search_columns, $search, $this ); $this->query_where .= $this->get_search_sql( $search, $search_columns, $wild ); } if ( ! empty( $include ) ) { // Sanitized earlier. $ids = implode( ',', $include ); $this->query_where .= " AND $wpdb->users.ID IN ($ids)"; } elseif ( ! empty( $qv['exclude'] ) ) { $ids = implode( ',', wp_parse_id_list( $qv['exclude'] ) ); $this->query_where .= " AND $wpdb->users.ID NOT IN ($ids)"; } // Date queries are allowed for the user_registered field. if ( ! empty( $qv['date_query'] ) && is_array( $qv['date_query'] ) ) { $date_query = new WP_Date_Query( $qv['date_query'], 'user_registered' ); $this->query_where .= $date_query->get_sql(); } /** * Fires after the WP_User_Query has been parsed, and before * the query is executed. * * The passed WP_User_Query object contains SQL parts formed * from parsing the given query. * * @since 3.1.0 * * @param WP_User_Query $this The current WP_User_Query instance, * passed by reference. */ do_action_ref_array( 'pre_user_query', array( &$this ) ); } /** * Execute the query, with the current variables. * * @since 3.1.0 * * @global wpdb $wpdb WordPress database abstraction object. */ public function query() { global $wpdb; $qv =& $this->query_vars; $this->request = "SELECT $this->query_fields $this->query_from $this->query_where $this->query_orderby $this->query_limit"; if ( is_array( $qv['fields'] ) || 'all' == $qv['fields'] ) { $this->results = $wpdb->get_results( $this->request ); } else { $this->results = $wpdb->get_col( $this->request ); } /** * Filters SELECT FOUND_ROWS() query for the current WP_User_Query instance. * * @since 3.2.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @param string $sql The SELECT FOUND_ROWS() query for the current WP_User_Query. */ if ( isset( $qv['count_total'] ) && $qv['count_total'] ) $this->total_users = (int) $wpdb->get_var( apply_filters( 'found_users_query', 'SELECT FOUND_ROWS()' ) ); if ( !$this->results ) return; if ( 'all_with_meta' == $qv['fields'] ) { cache_users( $this->results ); $r = array(); foreach ( $this->results as $userid ) $r[ $userid ] = new WP_User( $userid, '', $qv['blog_id'] ); $this->results = $r; } elseif ( 'all' == $qv['fields'] ) { foreach ( $this->results as $key => $user ) { $this->results[ $key ] = new WP_User( $user, '', $qv['blog_id'] ); } } } /** * Retrieve query variable. * * @since 3.5.0 * * @param string $query_var Query variable key. * @return mixed */ public function get( $query_var ) { if ( isset( $this->query_vars[$query_var] ) ) return $this->query_vars[$query_var]; return null; } /** * Set query variable. * * @since 3.5.0 * * @param string $query_var Query variable key. * @param mixed $value Query variable value. */ public function set( $query_var, $value ) { $this->query_vars[$query_var] = $value; } /** * Used internally to generate an SQL string for searching across multiple columns * * @since 3.1.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @param string $string * @param array $cols * @param bool $wild Whether to allow wildcard searches. Default is false for Network Admin, true for single site. * Single site allows leading and trailing wildcards, Network Admin only trailing. * @return string */ protected function get_search_sql( $string, $cols, $wild = false ) { global $wpdb; $searches = array(); $leading_wild = ( 'leading' == $wild || 'both' == $wild ) ? '%' : ''; $trailing_wild = ( 'trailing' == $wild || 'both' == $wild ) ? '%' : ''; $like = $leading_wild . $wpdb->esc_like( $string ) . $trailing_wild; foreach ( $cols as $col ) { if ( 'ID' == $col ) { $searches[] = $wpdb->prepare( "$col = %s", $string ); } else { $searches[] = $wpdb->prepare( "$col LIKE %s", $like ); } } return ' AND (' . implode(' OR ', $searches) . ')'; } /** * Return the list of users. * * @since 3.1.0 * * @return array Array of results. */ public function get_results() { return $this->results; } /** * Return the total number of users for the current query. * * @since 3.1.0 * * @return int Number of total users. */ public function get_total() { return $this->total_users; } /** * Parse and sanitize 'orderby' keys passed to the user query. * * @since 4.2.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @param string $orderby Alias for the field to order by. * @return string Value to used in the ORDER clause, if `$orderby` is valid. */ protected function parse_orderby( $orderby ) { global $wpdb; $meta_query_clauses = $this->meta_query->get_clauses(); $_orderby = ''; if ( in_array( $orderby, array( 'login', 'nicename', 'email', 'url', 'registered' ) ) ) { $_orderby = 'user_' . $orderby; } elseif ( in_array( $orderby, array( 'user_login', 'user_nicename', 'user_email', 'user_url', 'user_registered' ) ) ) { $_orderby = $orderby; } elseif ( 'name' == $orderby || 'display_name' == $orderby ) { $_orderby = 'display_name'; } elseif ( 'post_count' == $orderby ) { // todo: avoid the JOIN $where = get_posts_by_author_sql( 'post' ); $this->query_from .= " LEFT OUTER JOIN ( SELECT post_author, COUNT(*) as post_count FROM $wpdb->posts $where GROUP BY post_author ) p ON ({$wpdb->users}.ID = p.post_author) "; $_orderby = 'post_count'; } elseif ( 'ID' == $orderby || 'id' == $orderby ) { $_orderby = 'ID'; } elseif ( 'meta_value' == $orderby || $this->get( 'meta_key' ) == $orderby ) { $_orderby = "$wpdb->usermeta.meta_value"; } elseif ( 'meta_value_num' == $orderby ) { $_orderby = "$wpdb->usermeta.meta_value+0"; } elseif ( 'include' === $orderby && ! empty( $this->query_vars['include'] ) ) { $include = wp_parse_id_list( $this->query_vars['include'] ); $include_sql = implode( ',', $include ); $_orderby = "FIELD( $wpdb->users.ID, $include_sql )"; } elseif ( 'nicename__in' === $orderby ) { $sanitized_nicename__in = array_map( 'esc_sql', $this->query_vars['nicename__in'] ); $nicename__in = implode( "','", $sanitized_nicename__in ); $_orderby = "FIELD( user_nicename, '$nicename__in' )"; } elseif ( 'login__in' === $orderby ) { $sanitized_login__in = array_map( 'esc_sql', $this->query_vars['login__in'] ); $login__in = implode( "','", $sanitized_login__in ); $_orderby = "FIELD( user_login, '$login__in' )"; } elseif ( isset( $meta_query_clauses[ $orderby ] ) ) { $meta_clause = $meta_query_clauses[ $orderby ]; $_orderby = sprintf( "CAST(%s.meta_value AS %s)", esc_sql( $meta_clause['alias'] ), esc_sql( $meta_clause['cast'] ) ); } return $_orderby; } /** * Parse an 'order' query variable and cast it to ASC or DESC as necessary. * * @since 4.2.0 * * @param string $order The 'order' query variable. * @return string The sanitized 'order' query variable. */ protected function parse_order( $order ) { if ( ! is_string( $order ) || empty( $order ) ) { return 'DESC'; } if ( 'ASC' === strtoupper( $order ) ) { return 'ASC'; } else { return 'DESC'; } } /** * Make private properties readable for backward compatibility. * * @since 4.0.0 * * @param string $name Property to get. * @return mixed Property. */ public function __get( $name ) { if ( in_array( $name, $this->compat_fields ) ) { return $this->$name; } } /** * Make private properties settable for backward compatibility. * * @since 4.0.0 * * @param string $name Property to check if set. * @param mixed $value Property value. * @return mixed Newly-set property. */ public function __set( $name, $value ) { if ( in_array( $name, $this->compat_fields ) ) { return $this->$name = $value; } } /** * Make private properties checkable for backward compatibility. * * @since 4.0.0 * * @param string $name Property to check if set. * @return bool Whether the property is set. */ public function __isset( $name ) { if ( in_array( $name, $this->compat_fields ) ) { return isset( $this->$name ); } } /** * Make private properties un-settable for backward compatibility. * * @since 4.0.0 * * @param string $name Property to unset. */ public function __unset( $name ) { if ( in_array( $name, $this->compat_fields ) ) { unset( $this->$name ); } } /** * Make private/protected methods readable for backward compatibility. * * @since 4.0.0 * * @param callable $name Method to call. * @param array $arguments Arguments to pass when calling. * @return mixed Return value of the callback, false otherwise. */ public function __call( $name, $arguments ) { if ( 'get_search_sql' === $name ) { return call_user_func_array( array( $this, $name ), $arguments ); } return false; } }