WP_User_Query
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概述
WP_User_Query 是 WordPress 核心类,用于查询用户数据,支持从 wp_users 和 wp_usermeta 表中检索用户信息。它提供了丰富的参数来过滤、排序和分页用户查询结果,是开发者处理用户数据的主要工具。
关键要点
- WP_User_Query 用于查询用户,支持多种参数如角色、元数据、搜索、分页等。
- 查询参数包括 role、meta_query、search、orderby、number 等,可灵活组合。
- 返回结果类型取决于 fields 参数,可以是用户 ID 数组、stdClass 对象或 WP_User 对象。
- 支持多站点环境下的博客特定查询,通过 blog_id 参数指定。
- 使用 WP_Meta_Query 处理自定义字段查询,WP_Date_Query 处理日期查询。
- 提供缓存机制以提高性能,可通过 cache_results 参数控制。
- 包含多个方法如 get_results()、get_total() 用于获取查询结果和总数。
代码示例
// 查询管理员角色用户
$user_query = new WP_User_Query( array( 'role' => 'Administrator' ) );
// 查询特定用户ID
$user_query = new WP_User_Query( array( 'include' => array( 1, 2, 3 ) ) );
// 使用元数据查询
$args = array(
'meta_key' => 'country',
'meta_value' => 'Israel'
);
$user_query = new WP_User_Query( $args );
// 获取结果
if ( ! empty( $user_query->get_results() ) ) {
foreach ( $user_query->get_results() as $user ) {
echo '' . $user->display_name . '';
}
} else {
echo 'No users found.';
}注意事项
- 使用 role 参数时,需传入角色 slug(如 'administrator'),而非显示名称。
- meta_query 中 'NOT EXISTS' 在某些情况下可能无法按预期工作,特别是在多站点或使用 role 参数时。
- 查询自定义角色时,推荐使用 role__in 而非 role,以确保正确匹配。
- fields 参数设置为 'all' 或 'all_with_meta' 时,返回的 WP_User 对象不包含存储在 wp_usermeta 中的字段,需额外查询。
- 在 plugins_loaded 钩子之前运行用户查询可能导致问题,应避免。
原文内容
Core class used for querying users.
Description
See also
- WP_User_Query::prepare_query(): for information on accepted arguments.
Methods
| Name | Description |
|---|---|
| WP_User_Query::__call | Makes private/protected methods readable for backward compatibility. |
| WP_User_Query::__construct | Constructor. |
| WP_User_Query::__get | Makes private properties readable for backward compatibility. |
| WP_User_Query::__isset | Makes private properties checkable for backward compatibility. |
| WP_User_Query::__set | Makes private properties settable for backward compatibility. |
| WP_User_Query::__unset | Makes private properties un-settable for backward compatibility. |
| WP_User_Query::fill_query_vars | Fills in missing query variables with default values. |
| WP_User_Query::generate_cache_key | Generate cache key. |
| WP_User_Query::get | Retrieves query variable. |
| WP_User_Query::get_cache_last_changed | Retrieves the last changed cache timestamp for users and optionally posts. |
| WP_User_Query::get_results | Returns the list of users. |
| WP_User_Query::get_search_sql | Used internally to generate an SQL string for searching across multiple columns. |
| WP_User_Query::get_total | Returns the total number of users for the current query. |
| WP_User_Query::parse_order | Parses an ‘order’ query variable and casts it to ASC or DESC as necessary. |
| WP_User_Query::parse_orderby | Parses and sanitizes ‘orderby’ keys passed to the user query. |
| WP_User_Query::prepare_query | Prepares the query variables. |
| WP_User_Query::query | Executes the query, with the current variables. |
| WP_User_Query::set | Sets query variable. |
Source
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.
* Deprecated the 'who' parameter.
* @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 '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 '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 '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 $who Deprecated, use `$capability` instead.
* 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.' ),
'<code>who</code>',
'<code>capability</code>'
)
);
$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.' ),
'<code>plugins_loaded</code>'
),
'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 ) {
// Beginning of the string is on a new line to prevent leading whitespace. See https://core.trac.wordpress.org/ticket/56841.
$this->request =
"SELECT {$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';
$last_changed = $this->get_cache_last_changed( $qv );
if ( $qv['cache_results'] ) {
$cache_value = wp_cache_get_salted( $cache_key, $cache_group, $last_changed );
}
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_set_salted( $cache_key, $cache_value, $cache_group, $last_changed );
}
}
}
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 $_orderby;
}
/**
* Generate cache key.
*
* @since 6.3.0
* @since 6.9.0 The `$args` parameter was deprecated and renamed to `$deprecated`.
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param array $deprecated Unused.
* @param string $sql SQL statement.
* @return string Cache key.
*/
protected function generate_cache_key( array $deprecated, $sql ) {
global $wpdb;
// Replace wpdb placeholder in the SQL statement used by the cache key.
$sql = $wpdb->remove_placeholder_escape( $sql );
$key = md5( $sql );
return "get_users:$key";
}
/**
* Retrieves the last changed cache timestamp for users and optionally posts.
*
* @since 6.9.0
*
* @param array $args Query arguments.
* @return string[] The last changed timestamp string for the relevant cache groups.
*/
protected function get_cache_last_changed( array $args ) {
$last_changed = (array) 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 $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;
}
}
Changelog
| Version | Description |
|---|---|
| 3.1.0 | Introduced. |
Skip to note 9 content
Rami Yushuvaev
WordPress WP_User_Query Generator:
https://GenerateWP.com/wp_user_query/
Skip to note 10 content
Dotstore
If you want to search a user by first_name / last_name / description and the default search_columns.
// The search term $search_term = 'Ross'; // WP_User_Query arguments $args = array ( 'role' => 'reporter', 'order' => 'ASC', 'orderby' => 'display_name', 'search' => '*'.esc_attr( $search_term ).'*', 'meta_query' => array( 'relation' => 'OR', array( 'key' => 'first_name', 'value' => $search_term, 'compare' => 'LIKE' ), array( 'key' => 'last_name', 'value' => $search_term, 'compare' => 'LIKE' ), array( 'key' => 'description', 'value' => $search_term , 'compare' => 'LIKE' ) ) ); // Create the WP_User_Query object $wp_user_query = new WP_User_Query($args); // Get the results $authors = $wp_user_query->get_results(); // Check for results if (!empty($authors)) { echo '<ul>'; // loop through each author foreach ($authors as $author) { // get all the user's data $author_info = get_userdata($author->ID); echo '<li>' . $author_info->first_name . ' ' . $author_info->last_name . '</li>'; } echo '</ul>'; } else { echo 'No authors found'; }Skip to note 11 content
ugene
In addition to Dave answer above, while dealing with custom roles
1. We must use “slug”, but not “name” (only if you have space(” “) in your role name like “Wholesale Customer”
// this will not work as it has two words and space between them $role_query = new WP_User_Query( array( 'role' => array( 'Wholesale Customers ) ) ); // this will work using slug $role_query = new WP_User_Query( array( 'role' => array( 'wholesale_customers ) ) ); // this will work even though it is custom role, it has one word, no need to use slug $role_query = new WP_User_Query( array( 'role' => array( 'Affiliate ) ) );2. If you want to query in more roles esp. custom ones e.g teacher, student “role” will not work, instead use “role__in”
// this will not work $role_query = new WP_User_Query( array( 'role' => array( 'teacher','student' ) ) ); // this works $role_query = new WP_User_Query( array( 'role__in' => array( 'teacher','student' ) ) ); // finally to get results $role_results = $role_query->get_results();Skip to note 12 content
Jan-Willem
If you need all network users use `’blog_id’ => 0,`
Skip to note 13 content
Maxime Culea
Also note that users with no roles have also no wp_capabilities, so querying with following args will not match any of them:
The workaround to get theses users, is to use the builtin method : wp_get_users_with_no_role()
Skip to note 14 content
Dave McHale
Important note when working with custom roles: you need to query by slug, not name as the docs claim.
// This returns zero users, even though the admin area shows this as the Role name $user_query = new WP_User_Query( array( 'role' => 'Wholesale Customer' ) ); // This query correctly returns >3400 users $user_query = new WP_User_Query( array( 'role' => 'wholesale_customer' ) );Skip to note 15 content
shanemac10
To do a search for multiple values of the same key – i.e. “country” is equal to “Israel”, “USA”, or “United Kingdom” – you may be tempted to try using a
'relation' => 'OR'. This will not work.You should use an array of your values, then use the
'compare' => 'IN'parameter.Please note: the “type” default value is “CHAR”, so you may need to include that parameter if you are not evaluating string values.
// This will not work $args = array( 'meta_query' => array( 'relation' => 'OR', array( 'key' => 'country', 'value' => 'Israel', 'compare' => '=' ), array( 'key' => 'country', 'value' => 'USA', 'compare' => '=' ), array( 'key' => 'country', 'value' => 'United Kingdom', 'compare' => '=' ) ) ); $user_query = new WP_User_Query( $args );// This will work $args = array( 'meta_query' => array( array( 'key' => 'country', 'value' => array('Israel', 'USA', 'United Kingdom'), 'compare' => 'IN' ) ) ); $user_query = new WP_User_Query( $args );Skip to note 16 content
codespacing
Use this in your
functions.phpfile to modify the parameterANDinwp_user_query->query_wherebefore it fetches the result.The reason is that when you combine
meta_querywith a search for a keyword inWP_User_Query, the query will return users which match both the search query AND the result of the meta query even if you’re usingrelation => ORinmeta_query.Note: this workaround works when using
search,search_columns, andmeta_queryas the onlyWP_User_Queryargs!function wpdocs_pre_user_query_modify_AND( $query ) { if ( is_admin() ) { return; } if ( ! is_search() ) { return; } /** * Modify "AND" in "query_where" by "OR" */ if ( isset( $query->query_vars['search_columns'][0] ) && isset( $query->query_vars['meta_query'] ) && is_array( $query->query_vars['meta_query'] ) && isset( $query->query_vars['meta_query']['relation'] ) && count( $query->query_vars['meta_query'] ) > 1 ) { $first_search_column = $query->query_vars['search_columns'][0]; $where = str_replace( ") AND ({$first_search_column} LIKE", ") OR ({$first_search_column} LIKE", $query->query_where ); $query->query_where = $where; } } add_action( 'pre_user_query', 'wpdocs_pre_user_query_modify_AND' );