/**
* A class for displaying various tree-like structures.
*
* Extend the Walker class to use it, see examples below. Child classes
* do not need to implement all of the abstract methods in the class. The child
* only needs to implement the methods that are needed.
*
* @since 2.1.0
*
* @package WordPress
* @abstract
*/
#[AllowDynamicProperties]
class Walker {
/**
* What the class handles.
*
* @since 2.1.0
* @var string
*/
public $tree_type;
/**
* DB fields to use.
*
* @since 2.1.0
* @var string[]
*/
public $db_fields;
/**
* Max number of pages walked by the paged walker.
*
* @since 2.7.0
* @var int
*/
public $max_pages = 1;
/**
* Whether the current element has children or not.
*
* To be used in start_el().
*
* @since 4.0.0
* @var bool
*/
public $has_children;
/**
* Starts the list before the elements are added.
*
* The $args parameter holds additional values that may be used with the child
* class methods. This method is called at the start of the output list.
*
* @since 2.1.0
* @abstract
*
* @param string $output Used to append additional content (passed by reference).
* @param int $depth Depth of the item.
* @param array $args An array of additional arguments.
*/
public function start_lvl( &$output, $depth = 0, $args = array() ) {}
/**
* Ends the list of after the elements are added.
*
* The $args parameter holds additional values that may be used with the child
* class methods. This method finishes the list at the end of output of the elements.
*
* @since 2.1.0
* @abstract
*
* @param string $output Used to append additional content (passed by reference).
* @param int $depth Depth of the item.
* @param array $args An array of additional arguments.
*/
public function end_lvl( &$output, $depth = 0, $args = array() ) {}
/**
* Starts the element output.
*
* The $args parameter holds additional values that may be used with the child
* class methods. Also includes the element output.
*
* @since 2.1.0
* @since 5.9.0 Renamed `$object` (a PHP reserved keyword) to `$data_object` for PHP 8 named parameter support.
* @abstract
*
* @param string $output Used to append additional content (passed by reference).
* @param object $data_object The data object.
* @param int $depth Depth of the item.
* @param array $args An array of additional arguments.
* @param int $current_object_id Optional. ID of the current item. Default 0.
*/
public function start_el( &$output, $data_object, $depth = 0, $args = array(), $current_object_id = 0 ) {}
/**
* Ends the element output, if needed.
*
* The $args parameter holds additional values that may be used with the child class methods.
*
* @since 2.1.0
* @since 5.9.0 Renamed `$object` (a PHP reserved keyword) to `$data_object` for PHP 8 named parameter support.
* @abstract
*
* @param string $output Used to append additional content (passed by reference).
* @param object $data_object The data object.
* @param int $depth Depth of the item.
* @param array $args An array of additional arguments.
*/
public function end_el( &$output, $data_object, $depth = 0, $args = array() ) {}
/**
* Traverses elements to create list from elements.
*
* Display one element if the element doesn't have any children otherwise,
* display the element and its children. Will only traverse up to the max
* depth and no ignore elements under that depth. It is possible to set the
* max depth to include all depths, see walk() method.
*
* This method should not be called directly, use the walk() method instead.
*
* @since 2.5.0
*
* @param object $element Data object.
* @param array $children_elements List of elements to continue traversing (passed by reference).
* @param int $max_depth Max depth to traverse.
* @param int $depth Depth of current element.
* @param array $args An array of arguments.
* @param string $output Used to append additional content (passed by reference).
*/
public function display_element( $element, &$children_elements, $max_depth, $depth, $args, &$output ) {
if ( ! $element ) {
return;
}
$id_field = $this->db_fields['id'];
$id = $element->$id_field;
// Display this element.
$this->has_children = ! empty( $children_elements[ $id ] );
if ( isset( $args[0] ) && is_array( $args[0] ) ) {
$args[0]['has_children'] = $this->has_children; // Back-compat.
}
$this->start_el( $output, $element, $depth, ...array_values( $args ) );
// Descend only when the depth is right and there are children for this element.
if ( ( 0 == $max_depth || $max_depth > $depth + 1 ) && isset( $children_elements[ $id ] ) ) {
foreach ( $children_elements[ $id ] as $child ) {
if ( ! isset( $newlevel ) ) {
$newlevel = true;
// Start the child delimiter.
$this->start_lvl( $output, $depth, ...array_values( $args ) );
}
$this->display_element( $child, $children_elements, $max_depth, $depth + 1, $args, $output );
}
unset( $children_elements[ $id ] );
}
if ( isset( $newlevel ) && $newlevel ) {
// End the child delimiter.
$this->end_lvl( $output, $depth, ...array_values( $args ) );
}
// End this element.
$this->end_el( $output, $element, $depth, ...array_values( $args ) );
}
/**
* Displays array of elements hierarchically.
*
* Does not assume any existing order of elements.
*
* $max_depth = -1 means flatly display every element.
* $max_depth = 0 means display all levels.
* $max_depth > 0 specifies the number of display levels.
*
* @since 2.1.0
* @since 5.3.0 Formalized the existing `...$args` parameter by adding it
* to the function signature.
*
* @param array $elements An array of elements.
* @param int $max_depth The maximum hierarchical depth.
* @param mixed ...$args Optional additional arguments.
* @return string The hierarchical item output.
*/
public function walk( $elements, $max_depth, ...$args ) {
$output = '';
// Invalid parameter or nothing to walk.
if ( $max_depth < -1 || empty( $elements ) ) {
return $output;
}
$parent_field = $this->db_fields['parent'];
// Flat display.
if ( -1 == $max_depth ) {
$empty_array = array();
foreach ( $elements as $e ) {
$this->display_element( $e, $empty_array, 1, 0, $args, $output );
}
return $output;
}
/*
* Need to display in hierarchical order.
* Separate elements into two buckets: top level and children elements.
* Children_elements is two dimensional array. Example:
* Children_elements[10][] contains all sub-elements whose parent is 10.
*/
$top_level_elements = array();
$children_elements = array();
foreach ( $elements as $e ) {
if ( empty( $e->$parent_field ) ) {
$top_level_elements[] = $e;
} else {
$children_elements[ $e->$parent_field ][] = $e;
}
}
/*
* When none of the elements is top level.
* Assume the first one must be root of the sub elements.
*/
if ( empty( $top_level_elements ) ) {
$first = array_slice( $elements, 0, 1 );
$root = $first[0];
$top_level_elements = array();
$children_elements = array();
foreach ( $elements as $e ) {
if ( $root->$parent_field == $e->$parent_field ) {
$top_level_elements[] = $e;
} else {
$children_elements[ $e->$parent_field ][] = $e;
}
}
}
foreach ( $top_level_elements as $e ) {
$this->display_element( $e, $children_elements, $max_depth, 0, $args, $output );
}
/*
* If we are displaying all levels, and remaining children_elements is not empty,
* then we got orphans, which should be displayed regardless.
*/
if ( ( 0 == $max_depth ) && count( $children_elements ) > 0 ) {
$empty_array = array();
foreach ( $children_elements as $orphans ) {
foreach ( $orphans as $op ) {
$this->display_element( $op, $empty_array, 1, 0, $args, $output );
}
}
}
return $output;
}
/**
* Produces a page of nested elements.
*
* Given an array of hierarchical elements, the maximum depth, a specific page number,
* and number of elements per page, this function first determines all top level root elements
* belonging to that page, then lists them and all of their children in hierarchical order.
*
* $max_depth = 0 means display all levels.
* $max_depth > 0 specifies the number of display levels.
*
* @since 2.7.0
* @since 5.3.0 Formalized the existing `...$args` parameter by adding it
* to the function signature.
*
* @param array $elements An array of elements.
* @param int $max_depth The maximum hierarchical depth.
* @param int $page_num The specific page number, beginning with 1.
* @param int $per_page Number of elements per page.
* @param mixed ...$args Optional additional arguments.
* @return string XHTML of the specified page of elements.
*/
public function paged_walk( $elements, $max_depth, $page_num, $per_page, ...$args ) {
if ( empty( $elements ) || $max_depth < -1 ) {
return '';
}
$output = '';
$parent_field = $this->db_fields['parent'];
$count = -1;
if ( -1 == $max_depth ) {
$total_top = count( $elements );
}
if ( $page_num < 1 || $per_page < 0 ) {
// No paging.
$paging = false;
$start = 0;
if ( -1 == $max_depth ) {
$end = $total_top;
}
$this->max_pages = 1;
} else {
$paging = true;
$start = ( (int) $page_num - 1 ) * (int) $per_page;
$end = $start + $per_page;
if ( -1 == $max_depth ) {
$this->max_pages = ceil( $total_top / $per_page );
}
}
// Flat display.
if ( -1 == $max_depth ) {
if ( ! empty( $args[0]['reverse_top_level'] ) ) {
$elements = array_reverse( $elements );
$oldstart = $start;
$start = $total_top - $end;
$end = $total_top - $oldstart;
}
$empty_array = array();
foreach ( $elements as $e ) {
++$count;
if ( $count < $start ) {
continue;
}
if ( $count >= $end ) {
break;
}
$this->display_element( $e, $empty_array, 1, 0, $args, $output );
}
return $output;
}
/*
* Separate elements into two buckets: top level and children elements.
* Children_elements is two dimensional array, e.g.
* $children_elements[10][] contains all sub-elements whose parent is 10.
*/
$top_level_elements = array();
$children_elements = array();
foreach ( $elements as $e ) {
if ( empty( $e->$parent_field ) ) {
$top_level_elements[] = $e;
} else {
$children_elements[ $e->$parent_field ][] = $e;
}
}
$total_top = count( $top_level_elements );
if ( $paging ) {
$this->max_pages = ceil( $total_top / $per_page );
} else {
$end = $total_top;
}
if ( ! empty( $args[0]['reverse_top_level'] ) ) {
$top_level_elements = array_reverse( $top_level_elements );
$oldstart = $start;
$start = $total_top - $end;
$end = $total_top - $oldstart;
}
if ( ! empty( $args[0]['reverse_children'] ) ) {
foreach ( $children_elements as $parent => $children ) {
$children_elements[ $parent ] = array_reverse( $children );
}
}
foreach ( $top_level_elements as $e ) {
++$count;
// For the last page, need to unset earlier children in order to keep track of orphans.
if ( $end >= $total_top && $count < $start ) {
$this->unset_children( $e, $children_elements );
}
if ( $count < $start ) {
continue;
}
if ( $count >= $end ) {
break;
}
$this->display_element( $e, $children_elements, $max_depth, 0, $args, $output );
}
if ( $end >= $total_top && count( $children_elements ) > 0 ) {
$empty_array = array();
foreach ( $children_elements as $orphans ) {
foreach ( $orphans as $op ) {
$this->display_element( $op, $empty_array, 1, 0, $args, $output );
}
}
}
return $output;
}
/**
* Calculates the total number of root elements.
*
* @since 2.7.0
*
* @param array $elements Elements to list.
* @return int Number of root elements.
*/
public function get_number_of_root_elements( $elements ) {
$num = 0;
$parent_field = $this->db_fields['parent'];
foreach ( $elements as $e ) {
if ( empty( $e->$parent_field ) ) {
++$num;
}
}
return $num;
}
/**
* Unsets all the children for a given top level element.
*
* @since 2.7.0
*
* @param object $element The top level element.
* @param array $children_elements The children elements.
*/
public function unset_children( $element, &$children_elements ) {
if ( ! $element || ! $children_elements ) {
return;
}
$id_field = $this->db_fields['id'];
$id = $element->$id_field;
if ( ! empty( $children_elements[ $id ] ) && is_array( $children_elements[ $id ] ) ) {
foreach ( (array) $children_elements[ $id ] as $child ) {
$this->unset_children( $child, $children_elements );
}
}
unset( $children_elements[ $id ] );
}
}
/**
* User API: WP_User_Query class
*
* @package WordPress
* @subpackage Users
* @since 4.4.0
*/
/**
* Core class used for querying users.
*
* @since 3.1.0
*
* @see WP_User_Query::prepare_query() for information on accepted arguments.
*/
#[AllowDynamicProperties]
class WP_User_Query {
/**
* Query vars, after parsing
*
* @since 3.5.0
* @var array
*/
public $query_vars = array();
/**
* List of found user IDs.
*
* @since 3.1.0
* @var array
*/
private $results;
/**
* Total number of found users for the current query
*
* @since 3.1.0
* @var int
*/
private $total_users = 0;
/**
* Metadata query container.
*
* @since 4.2.0
* @var WP_Meta_Query
*/
public $meta_query = false;
/**
* The SQL query used to fetch matching users.
*
* @since 4.4.0
* @var string
*/
public $request;
private $compat_fields = array( 'results', 'total_users' );
// SQL clauses.
public $query_fields;
public $query_from;
public $query_where;
public $query_orderby;
public $query_limit;
/**
* Constructor.
*
* @since 3.1.0
*
* @param null|string|array $query Optional. The query variables.
* See WP_User_Query::prepare_query() for information on accepted arguments.
*/
public function __construct( $query = null ) {
if ( ! empty( $query ) ) {
$this->prepare_query( $query );
$this->query();
}
}
/**
* Fills in missing query variables with default values.
*
* @since 4.4.0
*
* @param string|array $args Query vars, as passed to `WP_User_Query`.
* @return array Complete query variables with undefined ones filled in with defaults.
*/
public static function fill_query_vars( $args ) {
$defaults = array(
'blog_id' => get_current_blog_id(),
'role' => '',
'role__in' => array(),
'role__not_in' => array(),
'capability' => '',
'capability__in' => array(),
'capability__not_in' => array(),
'meta_key' => '',
'meta_value' => '',
'meta_compare' => '',
'include' => array(),
'exclude' => array(),
'search' => '',
'search_columns' => array(),
'orderby' => 'login',
'order' => 'ASC',
'offset' => '',
'number' => '',
'paged' => 1,
'count_total' => true,
'fields' => 'all',
'who' => '',
'has_published_posts' => null,
'nicename' => '',
'nicename__in' => array(),
'nicename__not_in' => array(),
'login' => '',
'login__in' => array(),
'login__not_in' => array(),
'cache_results' => true,
);
return wp_parse_args( $args, $defaults );
}
/**
* Prepares the query variables.
*
* @since 3.1.0
* @since 4.1.0 Added the ability to order by the `include` value.
* @since 4.2.0 Added 'meta_value_num' support for `$orderby` parameter. Added multi-dimensional array syntax
* for `$orderby` parameter.
* @since 4.3.0 Added 'has_published_posts' parameter.
* @since 4.4.0 Added 'paged', 'role__in', and 'role__not_in' parameters. The 'role' parameter was updated to
* permit an array or comma-separated list of values. The 'number' parameter was updated to support
* querying for all users with using -1.
* @since 4.7.0 Added 'nicename', 'nicename__in', 'nicename__not_in', 'login', 'login__in',
* and 'login__not_in' parameters.
* @since 5.1.0 Introduced the 'meta_compare_key' parameter.
* @since 5.3.0 Introduced the 'meta_type_key' parameter.
* @since 5.9.0 Added 'capability', 'capability__in', and 'capability__not_in' parameters.
* @since 6.3.0 Added 'cache_results' parameter.
*
* @global wpdb $wpdb WordPress database abstraction object.
* @global WP_Roles $wp_roles WordPress role management object.
*
* @param string|array $query {
* Optional. Array or string of query parameters.
*
* @type int $blog_id The site ID. Default is the current site.
* @type string|string[] $role An array or a comma-separated list of role names that users must match
* to be included in results. Note that this is an inclusive list: users
* must match *each* role. Default empty.
* @type string[] $role__in An array of role names. Matched users must have at least one of these
* roles. Default empty array.
* @type string[] $role__not_in An array of role names to exclude. Users matching one or more of these
* roles will not be included in results. Default empty array.
* @type string|string[] $meta_key Meta key or keys to filter by.
* @type string|string[] $meta_value Meta value or values to filter by.
* @type string $meta_compare MySQL operator used for comparing the meta value.
* See WP_Meta_Query::__construct() for accepted values and default value.
* @type string $meta_compare_key MySQL operator used for comparing the meta key.
* See WP_Meta_Query::__construct() for accepted values and default value.
* @type string $meta_type MySQL data type that the meta_value column will be CAST to for comparisons.
* See WP_Meta_Query::__construct() for accepted values and default value.
* @type string $meta_type_key MySQL data type that the meta_key column will be CAST to for comparisons.
* See WP_Meta_Query::__construct() for accepted values and default value.
* @type array $meta_query An associative array of WP_Meta_Query arguments.
* See WP_Meta_Query::__construct() for accepted values.
* @type string|string[] $capability An array or a comma-separated list of capability names that users must match
* to be included in results. Note that this is an inclusive list: users
* must match *each* capability.
* Does NOT work for capabilities not in the database or filtered via {@see 'map_meta_cap'}.
* Default empty.
* @type string[] $capability__in An array of capability names. Matched users must have at least one of these
* capabilities.
* Does NOT work for capabilities not in the database or filtered via {@see 'map_meta_cap'}.
* Default empty array.
* @type string[] $capability__not_in An array of capability names to exclude. Users matching one or more of these
* capabilities will not be included in results.
* Does NOT work for capabilities not in the database or filtered via {@see 'map_meta_cap'}.
* Default empty array.
* @type int[] $include An array of user IDs to include. Default empty array.
* @type int[] $exclude An array of user IDs to exclude. Default empty array.
* @type string $search Search keyword. Searches for possible string matches on columns.
* When `$search_columns` is left empty, it tries to determine which
* column to search in based on search string. Default empty.
* @type string[] $search_columns Array of column names to be searched. Accepts 'ID', 'user_login',
* 'user_email', 'user_url', 'user_nicename', 'display_name'.
* Default empty array.
* @type string|array $orderby Field(s) to sort the retrieved users by. May be a single value,
* an array of values, or a multi-dimensional array with fields as
* keys and orders ('ASC' or 'DESC') as values. Accepted values are:
* - 'ID'
* - 'display_name' (or 'name')
* - 'include'
* - 'user_login' (or 'login')
* - 'login__in'
* - 'user_nicename' (or 'nicename'),
* - 'nicename__in'
* - 'user_email (or 'email')
* - 'user_url' (or 'url'),
* - 'user_registered' (or 'registered')
* - 'post_count'
* - 'meta_value',
* - 'meta_value_num'
* - The value of `$meta_key`
* - An array key of `$meta_query`
* To use 'meta_value' or 'meta_value_num', `$meta_key`
* must be also be defined. Default 'user_login'.
* @type string $order Designates ascending or descending order of users. Order values
* passed as part of an `$orderby` array take precedence over this
* parameter. Accepts 'ASC', 'DESC'. Default 'ASC'.
* @type int $offset Number of users to offset in retrieved results. Can be used in
* conjunction with pagination. Default 0.
* @type int $number Number of users to limit the query for. Can be used in
* conjunction with pagination. Value -1 (all) is supported, but
* should be used with caution on larger sites.
* Default -1 (all users).
* @type int $paged When used 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|string[] $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'
* - 'user_pass'
* - 'user_activation_key'
* - 'user_status'
* - 'spam' (only available on multisite installs)
* - 'deleted' (only available on multisite installs)
* - 'all' for all fields and loads user meta.
* - 'all_with_meta' Deprecated. Use 'all'.
* Default 'all'.
* @type string $who Type of users to query. Accepts 'authors'.
* Default empty (all users).
* @type bool|string[] $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 string[] $nicename__in An array of nicenames to include. Users matching one of these
* nicenames will be included in results. Default empty array.
* @type string[] $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 string[] $login__in An array of logins to include. Users matching one of these
* logins will be included in results. Default empty array.
* @type string[] $login__not_in An array of logins to exclude. Users matching one of these
* logins will not be included in results. Default empty array.
* @type bool $cache_results Whether to cache user information. Default true.
* }
*/
public function prepare_query( $query = array() ) {
global $wpdb, $wp_roles;
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 $query Current instance of WP_User_Query (passed by reference).
*/
do_action_ref_array( 'pre_get_users', array( &$this ) );
// Ensure that query vars are filled after 'pre_get_users'.
$qv =& $this->query_vars;
$qv = $this->fill_query_vars( $qv );
$allowed_fields = array(
'id',
'user_login',
'user_pass',
'user_nicename',
'user_email',
'user_url',
'user_registered',
'user_activation_key',
'user_status',
'display_name',
);
if ( is_multisite() ) {
$allowed_fields[] = 'spam';
$allowed_fields[] = 'deleted';
}
if ( is_array( $qv['fields'] ) ) {
$qv['fields'] = array_map( 'strtolower', $qv['fields'] );
$qv['fields'] = array_intersect( array_unique( $qv['fields'] ), $allowed_fields );
if ( empty( $qv['fields'] ) ) {
$qv['fields'] = array( 'id' );
}
$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_with_meta' === $qv['fields'] || 'all' === $qv['fields'] || ! in_array( $qv['fields'], $allowed_fields, true ) ) {
$this->query_fields = "$wpdb->users.ID";
} else {
$field = 'id' === strtolower( $qv['fields'] ) ? 'ID' : sanitize_key( $qv['fields'] );
$this->query_fields = "$wpdb->users.$field";
}
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 ( " . implode( ', ', $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'] && $blog_id ) {
_deprecated_argument(
'WP_User_Query',
'5.9.0',
sprintf(
/* translators: 1: who, 2: capability */
__( '%1$s is deprecated. Use %2$s instead.' ),
'who',
'capability'
)
);
$who_query = array(
'key' => $wpdb->get_blog_prefix( $blog_id ) . 'user_level',
'value' => 0,
'compare' => '!=',
);
// Prevent extra meta query.
$qv['blog_id'] = 0;
$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.
$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'];
}
// Capabilities.
$available_roles = array();
if ( ! empty( $qv['capability'] ) || ! empty( $qv['capability__in'] ) || ! empty( $qv['capability__not_in'] ) ) {
$wp_roles->for_site( $blog_id );
$available_roles = $wp_roles->roles;
}
$capabilities = array();
if ( ! empty( $qv['capability'] ) ) {
if ( is_array( $qv['capability'] ) ) {
$capabilities = $qv['capability'];
} elseif ( is_string( $qv['capability'] ) ) {
$capabilities = array_map( 'trim', explode( ',', $qv['capability'] ) );
}
}
$capability__in = array();
if ( ! empty( $qv['capability__in'] ) ) {
$capability__in = (array) $qv['capability__in'];
}
$capability__not_in = array();
if ( ! empty( $qv['capability__not_in'] ) ) {
$capability__not_in = (array) $qv['capability__not_in'];
}
// Keep track of all capabilities and the roles they're added on.
$caps_with_roles = array();
foreach ( $available_roles as $role => $role_data ) {
$role_caps = array_keys( array_filter( $role_data['capabilities'] ) );
foreach ( $capabilities as $cap ) {
if ( in_array( $cap, $role_caps, true ) ) {
$caps_with_roles[ $cap ][] = $role;
break;
}
}
foreach ( $capability__in as $cap ) {
if ( in_array( $cap, $role_caps, true ) ) {
$role__in[] = $role;
break;
}
}
foreach ( $capability__not_in as $cap ) {
if ( in_array( $cap, $role_caps, true ) ) {
$role__not_in[] = $role;
break;
}
}
}
$role__in = array_merge( $role__in, $capability__in );
$role__not_in = array_merge( $role__not_in, $capability__not_in );
$roles = array_unique( $roles );
$role__in = array_unique( $role__in );
$role__not_in = array_unique( $role__not_in );
// Support querying by capabilities added directly to users.
if ( $blog_id && ! empty( $capabilities ) ) {
$capabilities_clauses = array( 'relation' => 'AND' );
foreach ( $capabilities as $cap ) {
$clause = array( 'relation' => 'OR' );
$clause[] = array(
'key' => $wpdb->get_blog_prefix( $blog_id ) . 'capabilities',
'value' => '"' . $cap . '"',
'compare' => 'LIKE',
);
if ( ! empty( $caps_with_roles[ $cap ] ) ) {
foreach ( $caps_with_roles[ $cap ] as $role ) {
$clause[] = array(
'key' => $wpdb->get_blog_prefix( $blog_id ) . 'capabilities',
'value' => '"' . $role . '"',
'compare' => 'LIKE',
);
}
}
$capabilities_clauses[] = $clause;
}
$role_queries[] = $capabilities_clauses;
if ( empty( $this->meta_query->queries ) ) {
$this->meta_query->queries[] = $capabilities_clauses;
} 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, array( $capabilities_clauses ) ),
);
}
$this->meta_query->parse_query_vars( $this->meta_query->queries );
}
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 ( str_contains( $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 'ID', 'user_login',
* 'user_email', 'user_url', 'user_nicename', and 'display_name'.
*
* @since 3.6.0
*
* @param string[] $search_columns Array of column names to be searched.
* @param string $search Text being searched.
* @param WP_User_Query $query 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 $query Current instance of WP_User_Query (passed by reference).
*/
do_action_ref_array( 'pre_user_query', array( &$this ) );
}
/**
* Executes the query, with the current variables.
*
* @since 3.1.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*/
public function query() {
global $wpdb;
if ( ! did_action( 'plugins_loaded' ) ) {
_doing_it_wrong(
'WP_User_Query::query',
sprintf(
/* translators: %s: plugins_loaded */
__( 'User queries should not be run before the %s hook.' ),
'plugins_loaded'
),
'6.1.1'
);
}
$qv =& $this->query_vars;
// Do not cache results if more than 3 fields are requested.
if ( is_array( $qv['fields'] ) && count( $qv['fields'] ) > 3 ) {
$qv['cache_results'] = false;
}
/**
* Filters the users array before the query takes place.
*
* Return a non-null value to bypass WordPress' default user queries.
*
* Filtering functions that require pagination information are encouraged to set
* the `total_users` property of the WP_User_Query object, passed to the filter
* by reference. If WP_User_Query does not perform a database query, it will not
* have enough information to generate these values itself.
*
* @since 5.1.0
*
* @param array|null $results Return an array of user data to short-circuit WP's user query
* or null to allow WP to run its normal queries.
* @param WP_User_Query $query The WP_User_Query instance (passed by reference).
*/
$this->results = apply_filters_ref_array( 'users_pre_query', array( null, &$this ) );
if ( null === $this->results ) {
$this->request = "
SELECT {$this->query_fields}
{$this->query_from}
{$this->query_where}
{$this->query_orderby}
{$this->query_limit}
";
$cache_value = false;
$cache_key = $this->generate_cache_key( $qv, $this->request );
$cache_group = 'user-queries';
if ( $qv['cache_results'] ) {
$cache_value = wp_cache_get( $cache_key, $cache_group );
}
if ( false !== $cache_value ) {
$this->results = $cache_value['user_data'];
$this->total_users = $cache_value['total_users'];
} else {
if ( is_array( $qv['fields'] ) ) {
$this->results = $wpdb->get_results( $this->request );
} else {
$this->results = $wpdb->get_col( $this->request );
}
if ( isset( $qv['count_total'] ) && $qv['count_total'] ) {
/**
* Filters SELECT FOUND_ROWS() query for the current WP_User_Query instance.
*
* @since 3.2.0
* @since 5.1.0 Added the `$this` parameter.
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param string $sql The SELECT FOUND_ROWS() query for the current WP_User_Query.
* @param WP_User_Query $query The current WP_User_Query instance.
*/
$found_users_query = apply_filters( 'found_users_query', 'SELECT FOUND_ROWS()', $this );
$this->total_users = (int) $wpdb->get_var( $found_users_query );
}
if ( $qv['cache_results'] ) {
$cache_value = array(
'user_data' => $this->results,
'total_users' => $this->total_users,
);
wp_cache_add( $cache_key, $cache_value, $cache_group );
}
}
}
if ( ! $this->results ) {
return;
}
if (
is_array( $qv['fields'] ) &&
isset( $this->results[0]->ID )
) {
foreach ( $this->results as $result ) {
$result->id = $result->ID;
}
} elseif ( 'all_with_meta' === $qv['fields'] || 'all' === $qv['fields'] ) {
if ( function_exists( 'cache_users' ) ) {
cache_users( $this->results );
}
$r = array();
foreach ( $this->results as $userid ) {
if ( 'all_with_meta' === $qv['fields'] ) {
$r[ $userid ] = new WP_User( $userid, '', $qv['blog_id'] );
} else {
$r[] = new WP_User( $userid, '', $qv['blog_id'] );
}
}
$this->results = $r;
}
}
/**
* Retrieves 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;
}
/**
* Sets 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 $search Search string.
* @param string[] $columns Array of columns to search.
* @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( $search, $columns, $wild = false ) {
global $wpdb;
$searches = array();
$leading_wild = ( 'leading' === $wild || 'both' === $wild ) ? '%' : '';
$trailing_wild = ( 'trailing' === $wild || 'both' === $wild ) ? '%' : '';
$like = $leading_wild . $wpdb->esc_like( $search ) . $trailing_wild;
foreach ( $columns as $column ) {
if ( 'ID' === $column ) {
$searches[] = $wpdb->prepare( "$column = %s", $search );
} else {
$searches[] = $wpdb->prepare( "$column LIKE %s", $like );
}
}
return ' AND (' . implode( ' OR ', $searches ) . ')';
}
/**
* Returns the list of users.
*
* @since 3.1.0
*
* @return array Array of results.
*/
public function get_results() {
return $this->results;
}
/**
* Returns 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;
}
/**
* Parses and sanitizes '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' ), true ) ) {
$_orderby = 'user_' . $orderby;
} elseif ( in_array( $orderby, array( 'user_login', 'user_nicename', 'user_email', 'user_url', 'user_registered' ), true ) ) {
$_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;
}
/**
* Generate cache key.
*
* @since 6.3.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param array $args Query arguments.
* @param string $sql SQL statement.
* @return string Cache key.
*/
protected function generate_cache_key( array $args, $sql ) {
global $wpdb;
// Replace wpdb placeholder in the SQL statement used by the cache key.
$sql = $wpdb->remove_placeholder_escape( $sql );
$key = md5( $sql );
$last_changed = wp_cache_get_last_changed( 'users' );
if ( empty( $args['orderby'] ) ) {
// Default order is by 'user_login'.
$ordersby = array( 'user_login' => '' );
} elseif ( is_array( $args['orderby'] ) ) {
$ordersby = $args['orderby'];
} else {
// 'orderby' values may be a comma- or space-separated list.
$ordersby = preg_split( '/[,\s]+/', $args['orderby'] );
}
$blog_id = 0;
if ( isset( $args['blog_id'] ) ) {
$blog_id = absint( $args['blog_id'] );
}
if ( $args['has_published_posts'] || in_array( 'post_count', $ordersby, true ) ) {
$switch = $blog_id && get_current_blog_id() !== $blog_id;
if ( $switch ) {
switch_to_blog( $blog_id );
}
$last_changed .= wp_cache_get_last_changed( 'posts' );
if ( $switch ) {
restore_current_blog();
}
}
return "get_users:$key:$last_changed";
}
/**
* Parses an 'order' query variable and casts 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';
}
}
/**
* Makes private properties readable for backward compatibility.
*
* @since 4.0.0
* @since 6.4.0 Getting a dynamic property is deprecated.
*
* @param string $name Property to get.
* @return mixed Property.
*/
public function __get( $name ) {
if ( in_array( $name, $this->compat_fields, true ) ) {
return $this->$name;
}
wp_trigger_error(
__METHOD__,
"The property `{$name}` is not declared. Getting a dynamic property is " .
'deprecated since version 6.4.0! Instead, declare the property on the class.',
E_USER_DEPRECATED
);
return null;
}
/**
* Makes private properties settable for backward compatibility.
*
* @since 4.0.0
* @since 6.4.0 Setting a dynamic property is deprecated.
*
* @param string $name Property to check if set.
* @param mixed $value Property value.
*/
public function __set( $name, $value ) {
if ( in_array( $name, $this->compat_fields, true ) ) {
$this->$name = $value;
return;
}
wp_trigger_error(
__METHOD__,
"The property `{$name}` is not declared. Setting a dynamic property is " .
'deprecated since version 6.4.0! Instead, declare the property on the class.',
E_USER_DEPRECATED
);
}
/**
* Makes private properties checkable for backward compatibility.
*
* @since 4.0.0
* @since 6.4.0 Checking a dynamic property is deprecated.
*
* @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, true ) ) {
return isset( $this->$name );
}
wp_trigger_error(
__METHOD__,
"The property `{$name}` is not declared. Checking `isset()` on a dynamic property " .
'is deprecated since version 6.4.0! Instead, declare the property on the class.',
E_USER_DEPRECATED
);
return false;
}
/**
* Makes private properties un-settable for backward compatibility.
*
* @since 4.0.0
* @since 6.4.0 Unsetting a dynamic property is deprecated.
*
* @param string $name Property to unset.
*/
public function __unset( $name ) {
if ( in_array( $name, $this->compat_fields, true ) ) {
unset( $this->$name );
return;
}
wp_trigger_error(
__METHOD__,
"A property `{$name}` is not declared. Unsetting a dynamic property is " .
'deprecated since version 6.4.0! Instead, declare the property on the class.',
E_USER_DEPRECATED
);
}
/**
* Makes private/protected methods readable for backward compatibility.
*
* @since 4.0.0
*
* @param string $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 $this->get_search_sql( ...$arguments );
}
return false;
}
}