10 * Authenticate user with remember capability.
12 * The credentials is an array that has 'user_login', 'user_password', and
13 * 'remember' indices. If the credentials is not given, then the log in form
14 * will be assumed and used if set.
16 * The various authentication cookies will be set by this function and will be
17 * set for a longer period depending on if the 'remember' credential is set to
22 * @param array $credentials Optional. User info in order to sign on.
23 * @param bool $secure_cookie Optional. Whether to use secure cookie.
24 * @return WP_User|WP_Error WP_User on success, WP_Error on failure.
26 function wp_signon( $credentials = array(), $secure_cookie = '' ) {
27 if ( empty($credentials) ) {
28 if ( ! empty($_POST['log']) )
29 $credentials['user_login'] = $_POST['log'];
30 if ( ! empty($_POST['pwd']) )
31 $credentials['user_password'] = $_POST['pwd'];
32 if ( ! empty($_POST['rememberme']) )
33 $credentials['remember'] = $_POST['rememberme'];
36 if ( !empty($credentials['remember']) )
37 $credentials['remember'] = true;
39 $credentials['remember'] = false;
42 * Fires before the user is authenticated.
44 * The variables passed to the callbacks are passed by reference,
45 * and can be modified by callback functions.
49 * @todo Decide whether to deprecate the wp_authenticate action.
51 * @param string $user_login Username, passed by reference.
52 * @param string $user_password User password, passed by reference.
54 do_action_ref_array( 'wp_authenticate', array( &$credentials['user_login'], &$credentials['user_password'] ) );
56 if ( '' === $secure_cookie )
57 $secure_cookie = is_ssl();
60 * Filter whether to use a secure sign-on cookie.
64 * @param bool $secure_cookie Whether to use a secure sign-on cookie.
65 * @param array $credentials {
66 * Array of entered sign-on data.
68 * @type string $user_login Username.
69 * @type string $user_password Password entered.
70 * @type bool $remember Whether to 'remember' the user. Increases the time
71 * that the cookie will be kept. Default false.
74 $secure_cookie = apply_filters( 'secure_signon_cookie', $secure_cookie, $credentials );
76 global $auth_secure_cookie; // XXX ugly hack to pass this to wp_authenticate_cookie
77 $auth_secure_cookie = $secure_cookie;
79 add_filter('authenticate', 'wp_authenticate_cookie', 30, 3);
81 $user = wp_authenticate($credentials['user_login'], $credentials['user_password']);
83 if ( is_wp_error($user) ) {
84 if ( $user->get_error_codes() == array('empty_username', 'empty_password') ) {
85 $user = new WP_Error('', '');
91 wp_set_auth_cookie($user->ID, $credentials['remember'], $secure_cookie);
93 * Fires after the user has successfully logged in.
97 * @param string $user_login Username.
98 * @param WP_User $user WP_User object of the logged-in user.
100 do_action( 'wp_login', $user->user_login, $user );
105 * Authenticate the user using the username and password.
109 * @param WP_User|WP_Error|null $user WP_User or WP_Error object from a previous callback. Default null.
110 * @param string $username Username for authentication.
111 * @param string $password Password for authentication.
112 * @return WP_User|WP_Error WP_User on success, WP_Error on failure.
114 function wp_authenticate_username_password($user, $username, $password) {
115 if ( is_a( $user, 'WP_User' ) ) {
119 if ( empty($username) || empty($password) ) {
120 if ( is_wp_error( $user ) )
123 $error = new WP_Error();
125 if ( empty($username) )
126 $error->add('empty_username', __('<strong>ERROR</strong>: The username field is empty.'));
128 if ( empty($password) )
129 $error->add('empty_password', __('<strong>ERROR</strong>: The password field is empty.'));
134 $user = get_user_by('login', $username);
137 return new WP_Error( 'invalid_username', sprintf( __( '<strong>ERROR</strong>: Invalid username. <a href="%s">Lost your password</a>?' ), wp_lostpassword_url() ) );
140 * Filter whether the given user can be authenticated with the provided $password.
144 * @param WP_User|WP_Error $user WP_User or WP_Error object if a previous
145 * callback failed authentication.
146 * @param string $password Password to check against the user.
148 $user = apply_filters( 'wp_authenticate_user', $user, $password );
149 if ( is_wp_error($user) )
152 if ( !wp_check_password($password, $user->user_pass, $user->ID) )
153 return new WP_Error( 'incorrect_password', sprintf( __( '<strong>ERROR</strong>: The password you entered for the username <strong>%1$s</strong> is incorrect. <a href="%2$s">Lost your password</a>?' ),
154 $username, wp_lostpassword_url() ) );
160 * Authenticate the user using the WordPress auth cookie.
164 * @param WP_User|WP_Error|null $user WP_User or WP_Error object from a previous callback. Default null.
165 * @param string $username Username. If not empty, cancels the cookie authentication.
166 * @param string $password Password. If not empty, cancels the cookie authentication.
167 * @return WP_User|WP_Error WP_User on success, WP_Error on failure.
169 function wp_authenticate_cookie($user, $username, $password) {
170 if ( is_a( $user, 'WP_User' ) ) {
174 if ( empty($username) && empty($password) ) {
175 $user_id = wp_validate_auth_cookie();
177 return new WP_User($user_id);
179 global $auth_secure_cookie;
181 if ( $auth_secure_cookie )
182 $auth_cookie = SECURE_AUTH_COOKIE;
184 $auth_cookie = AUTH_COOKIE;
186 if ( !empty($_COOKIE[$auth_cookie]) )
187 return new WP_Error('expired_session', __('Please log in again.'));
189 // If the cookie is not set, be silent.
196 * For Multisite blogs, check if the authenticated user has been marked as a
197 * spammer, or if the user's primary blog has been marked as spam.
201 * @param WP_User|WP_Error|null $user WP_User or WP_Error object from a previous callback. Default null.
202 * @return WP_User|WP_Error WP_User on success, WP_Error if the user is considered a spammer.
204 function wp_authenticate_spam_check( $user ) {
205 if ( $user && is_a( $user, 'WP_User' ) && is_multisite() ) {
207 * Filter whether the user has been marked as a spammer.
211 * @param bool $spammed Whether the user is considered a spammer.
212 * @param WP_User $user User to check against.
214 $spammed = apply_filters( 'check_is_user_spammed', is_user_spammy(), $user );
217 return new WP_Error( 'spammer_account', __( '<strong>ERROR</strong>: Your account has been marked as a spammer.' ) );
223 * Validate the logged-in cookie.
225 * Checks the logged-in cookie if the previous auth cookie could not be
226 * validated and parsed.
228 * This is a callback for the determine_current_user filter, rather than API.
232 * @param int|bool $user The user ID (or false) as received from the
233 * determine_current_user filter.
234 * @return int|bool User ID if validated, false otherwise. If a user ID from
235 * an earlier filter callback is received, that value is returned.
237 function wp_validate_logged_in_cookie( $user_id ) {
242 if ( is_blog_admin() || is_network_admin() || empty( $_COOKIE[LOGGED_IN_COOKIE] ) ) {
246 return wp_validate_auth_cookie( $_COOKIE[LOGGED_IN_COOKIE], 'logged_in' );
250 * Number of posts user has written.
254 * @global wpdb $wpdb WordPress database object for queries.
256 * @param int $userid User ID.
257 * @return int Amount of posts user has written.
259 function count_user_posts($userid) {
262 $where = get_posts_by_author_sql('post', true, $userid);
264 $count = $wpdb->get_var( "SELECT COUNT(*) FROM $wpdb->posts $where" );
267 * Filter the number of posts a user has written.
271 * @param int $count The user's post count.
272 * @param int $userid User ID.
274 return apply_filters( 'get_usernumposts', $count, $userid );
278 * Number of posts written by a list of users.
282 * @param array $users Array of user IDs.
283 * @param string $post_type Optional. Post type to check. Defaults to post.
284 * @param bool $public_only Optional. Only return counts for public posts. Defaults to false.
285 * @return array Amount of posts each user has written.
287 function count_many_users_posts( $users, $post_type = 'post', $public_only = false ) {
291 if ( empty( $users ) || ! is_array( $users ) )
294 $userlist = implode( ',', array_map( 'absint', $users ) );
295 $where = get_posts_by_author_sql( $post_type, true, null, $public_only );
297 $result = $wpdb->get_results( "SELECT post_author, COUNT(*) FROM $wpdb->posts $where AND post_author IN ($userlist) GROUP BY post_author", ARRAY_N );
298 foreach ( $result as $row ) {
299 $count[ $row[0] ] = $row[1];
302 foreach ( $users as $id ) {
303 if ( ! isset( $count[ $id ] ) )
311 // User option functions
315 * Get the current user's ID
319 * @uses wp_get_current_user
321 * @return int The current user's ID
323 function get_current_user_id() {
324 if ( ! function_exists( 'wp_get_current_user' ) )
326 $user = wp_get_current_user();
327 return ( isset( $user->ID ) ? (int) $user->ID : 0 );
331 * Retrieve user option that can be either per Site or per Network.
333 * If the user ID is not given, then the current user will be used instead. If
334 * the user ID is given, then the user data will be retrieved. The filter for
335 * the result, will also pass the original option name and finally the user data
336 * object as the third parameter.
338 * The option will first check for the per site name and then the per Network name.
342 * @global wpdb $wpdb WordPress database object for queries.
344 * @param string $option User option name.
345 * @param int $user Optional. User ID.
346 * @param bool $deprecated Use get_option() to check for an option in the options table.
347 * @return mixed User option value on success, false on failure.
349 function get_user_option( $option, $user = 0, $deprecated = '' ) {
352 if ( !empty( $deprecated ) )
353 _deprecated_argument( __FUNCTION__, '3.0' );
355 if ( empty( $user ) )
356 $user = get_current_user_id();
358 if ( ! $user = get_userdata( $user ) )
361 $prefix = $wpdb->get_blog_prefix();
362 if ( $user->has_prop( $prefix . $option ) ) // Blog specific
363 $result = $user->get( $prefix . $option );
364 elseif ( $user->has_prop( $option ) ) // User specific and cross-blog
365 $result = $user->get( $option );
370 * Filter a specific user option value.
372 * The dynamic portion of the hook name, $option, refers to the user option name.
376 * @param mixed $result Value for the user's option.
377 * @param string $option Name of the option being retrieved.
378 * @param WP_User $user WP_User object of the user whose option is being retrieved.
380 return apply_filters( "get_user_option_{$option}", $result, $option, $user );
384 * Update user option with global blog capability.
386 * User options are just like user metadata except that they have support for
387 * global blog options. If the 'global' parameter is false, which it is by default
388 * it will prepend the WordPress table prefix to the option name.
390 * Deletes the user option if $newvalue is empty.
394 * @global wpdb $wpdb WordPress database object for queries.
396 * @param int $user_id User ID.
397 * @param string $option_name User option name.
398 * @param mixed $newvalue User option value.
399 * @param bool $global Optional. Whether option name is global or blog specific.
400 * Default false (blog specific).
401 * @return int|bool User meta ID if the option didn't exist, true on successful update,
404 function update_user_option( $user_id, $option_name, $newvalue, $global = false ) {
408 $option_name = $wpdb->get_blog_prefix() . $option_name;
410 return update_user_meta( $user_id, $option_name, $newvalue );
414 * Delete user option with global blog capability.
416 * User options are just like user metadata except that they have support for
417 * global blog options. If the 'global' parameter is false, which it is by default
418 * it will prepend the WordPress table prefix to the option name.
422 * @global wpdb $wpdb WordPress database object for queries.
424 * @param int $user_id User ID
425 * @param string $option_name User option name.
426 * @param bool $global Optional. Whether option name is global or blog specific.
427 * Default false (blog specific).
428 * @return bool True on success, false on failure.
430 function delete_user_option( $user_id, $option_name, $global = false ) {
434 $option_name = $wpdb->get_blog_prefix() . $option_name;
435 return delete_user_meta( $user_id, $option_name );
439 * WordPress User Query class.
443 class WP_User_Query {
446 * Query vars, after parsing
452 public $query_vars = array();
455 * List of found user ids
464 * Total number of found users for the current query
470 private $total_users = 0;
473 public $query_fields;
476 public $query_orderby;
484 * @param string|array $args Optional. The query variables.
485 * @return WP_User_Query
487 public function __construct( $query = null ) {
488 if ( ! empty( $query ) ) {
489 $this->prepare_query( $query );
495 * Prepare the query variables.
499 * @param string|array $args Optional. The query variables.
501 public function prepare_query( $query = array() ) {
504 if ( empty( $this->query_vars ) || ! empty( $query ) ) {
505 $this->query_limit = null;
506 $this->query_vars = wp_parse_args( $query, array(
507 'blog_id' => $GLOBALS['blog_id'],
511 'meta_compare' => '',
512 'include' => array(),
513 'exclude' => array(),
515 'search_columns' => array(),
516 'orderby' => 'login',
520 'count_total' => true,
527 * Fires before the WP_User_Query has been parsed.
529 * The passed WP_User_Query object contains the query variables, not
530 * yet passed into SQL.
534 * @param WP_User_Query $this The current WP_User_Query instance,
535 * passed by reference.
537 do_action( 'pre_get_users', $this );
539 $qv =& $this->query_vars;
541 if ( is_array( $qv['fields'] ) ) {
542 $qv['fields'] = array_unique( $qv['fields'] );
544 $this->query_fields = array();
545 foreach ( $qv['fields'] as $field ) {
546 $field = 'ID' === $field ? 'ID' : sanitize_key( $field );
547 $this->query_fields[] = "$wpdb->users.$field";
549 $this->query_fields = implode( ',', $this->query_fields );
550 } elseif ( 'all' == $qv['fields'] ) {
551 $this->query_fields = "$wpdb->users.*";
553 $this->query_fields = "$wpdb->users.ID";
556 if ( isset( $qv['count_total'] ) && $qv['count_total'] )
557 $this->query_fields = 'SQL_CALC_FOUND_ROWS ' . $this->query_fields;
559 $this->query_from = "FROM $wpdb->users";
560 $this->query_where = "WHERE 1=1";
563 if ( isset( $qv['orderby'] ) ) {
564 if ( in_array( $qv['orderby'], array('nicename', 'email', 'url', 'registered') ) ) {
565 $orderby = 'user_' . $qv['orderby'];
566 } elseif ( in_array( $qv['orderby'], array('user_nicename', 'user_email', 'user_url', 'user_registered') ) ) {
567 $orderby = $qv['orderby'];
568 } elseif ( 'name' == $qv['orderby'] || 'display_name' == $qv['orderby'] ) {
569 $orderby = 'display_name';
570 } elseif ( 'post_count' == $qv['orderby'] ) {
571 // todo: avoid the JOIN
572 $where = get_posts_by_author_sql('post');
573 $this->query_from .= " LEFT OUTER JOIN (
574 SELECT post_author, COUNT(*) as post_count
578 ) p ON ({$wpdb->users}.ID = p.post_author)
580 $orderby = 'post_count';
581 } elseif ( 'ID' == $qv['orderby'] || 'id' == $qv['orderby'] ) {
583 } elseif ( 'meta_value' == $qv['orderby'] ) {
584 $orderby = "$wpdb->usermeta.meta_value";
586 $orderby = 'user_login';
590 if ( empty( $orderby ) )
591 $orderby = 'user_login';
593 $qv['order'] = isset( $qv['order'] ) ? strtoupper( $qv['order'] ) : '';
594 if ( 'ASC' == $qv['order'] )
598 $this->query_orderby = "ORDER BY $orderby $order";
601 if ( isset( $qv['number'] ) && $qv['number'] ) {
603 $this->query_limit = $wpdb->prepare("LIMIT %d, %d", $qv['offset'], $qv['number']);
605 $this->query_limit = $wpdb->prepare("LIMIT %d", $qv['number']);
609 if ( isset( $qv['search'] ) )
610 $search = trim( $qv['search'] );
613 $leading_wild = ( ltrim($search, '*') != $search );
614 $trailing_wild = ( rtrim($search, '*') != $search );
615 if ( $leading_wild && $trailing_wild )
617 elseif ( $leading_wild )
619 elseif ( $trailing_wild )
624 $search = trim($search, '*');
626 $search_columns = array();
627 if ( $qv['search_columns'] )
628 $search_columns = array_intersect( $qv['search_columns'], array( 'ID', 'user_login', 'user_email', 'user_url', 'user_nicename' ) );
629 if ( ! $search_columns ) {
630 if ( false !== strpos( $search, '@') )
631 $search_columns = array('user_email');
632 elseif ( is_numeric($search) )
633 $search_columns = array('user_login', 'ID');
634 elseif ( preg_match('|^https?://|', $search) && ! ( is_multisite() && wp_is_large_network( 'users' ) ) )
635 $search_columns = array('user_url');
637 $search_columns = array('user_login', 'user_nicename');
641 * Filter the columns to search in a WP_User_Query search.
643 * The default columns depend on the search term, and include 'user_email',
644 * 'user_login', 'ID', 'user_url', and 'user_nicename'.
648 * @param array $search_columns Array of column names to be searched.
649 * @param string $search Text being searched.
650 * @param WP_User_Query $this The current WP_User_Query instance.
652 $search_columns = apply_filters( 'user_search_columns', $search_columns, $search, $this );
654 $this->query_where .= $this->get_search_sql( $search, $search_columns, $wild );
658 if ( isset( $qv['blog_id'] ) )
659 $blog_id = absint( $qv['blog_id'] );
661 if ( isset( $qv['who'] ) && 'authors' == $qv['who'] && $blog_id ) {
662 $qv['meta_key'] = $wpdb->get_blog_prefix( $blog_id ) . 'user_level';
663 $qv['meta_value'] = 0;
664 $qv['meta_compare'] = '!=';
665 $qv['blog_id'] = $blog_id = 0; // Prevent extra meta query
669 if ( isset( $qv['role'] ) )
670 $role = trim( $qv['role'] );
672 if ( $blog_id && ( $role || is_multisite() ) ) {
673 $cap_meta_query = array();
674 $cap_meta_query['key'] = $wpdb->get_blog_prefix( $blog_id ) . 'capabilities';
677 $cap_meta_query['value'] = '"' . $role . '"';
678 $cap_meta_query['compare'] = 'like';
681 if ( empty( $qv['meta_query'] ) || ! in_array( $cap_meta_query, $qv['meta_query'], true ) ) {
682 $qv['meta_query'][] = $cap_meta_query;
686 $meta_query = new WP_Meta_Query();
687 $meta_query->parse_query_vars( $qv );
689 if ( !empty( $meta_query->queries ) ) {
690 $clauses = $meta_query->get_sql( 'user', $wpdb->users, 'ID', $this );
691 $this->query_from .= $clauses['join'];
692 $this->query_where .= $clauses['where'];
694 if ( 'OR' == $meta_query->relation )
695 $this->query_fields = 'DISTINCT ' . $this->query_fields;
698 if ( ! empty( $qv['include'] ) ) {
699 $ids = implode( ',', wp_parse_id_list( $qv['include'] ) );
700 $this->query_where .= " AND $wpdb->users.ID IN ($ids)";
701 } elseif ( ! empty( $qv['exclude'] ) ) {
702 $ids = implode( ',', wp_parse_id_list( $qv['exclude'] ) );
703 $this->query_where .= " AND $wpdb->users.ID NOT IN ($ids)";
707 * Fires after the WP_User_Query has been parsed, and before
708 * the query is executed.
710 * The passed WP_User_Query object contains SQL parts formed
711 * from parsing the given query.
715 * @param WP_User_Query $this The current WP_User_Query instance,
716 * passed by reference.
718 do_action_ref_array( 'pre_user_query', array( &$this ) );
722 * Execute the query, with the current variables.
726 * @global wpdb $wpdb WordPress database object for queries.
728 public function query() {
731 $qv =& $this->query_vars;
733 $query = "SELECT $this->query_fields $this->query_from $this->query_where $this->query_orderby $this->query_limit";
735 if ( is_array( $qv['fields'] ) || 'all' == $qv['fields'] ) {
736 $this->results = $wpdb->get_results( $query );
738 $this->results = $wpdb->get_col( $query );
742 * Filter SELECT FOUND_ROWS() query for the current WP_User_Query instance.
746 * @global wpdb $wpdb WordPress database object.
748 * @param string $sql The SELECT FOUND_ROWS() query for the current WP_User_Query.
750 if ( isset( $qv['count_total'] ) && $qv['count_total'] )
751 $this->total_users = $wpdb->get_var( apply_filters( 'found_users_query', 'SELECT FOUND_ROWS()' ) );
753 if ( !$this->results )
756 if ( 'all_with_meta' == $qv['fields'] ) {
757 cache_users( $this->results );
760 foreach ( $this->results as $userid )
761 $r[ $userid ] = new WP_User( $userid, '', $qv['blog_id'] );
764 } elseif ( 'all' == $qv['fields'] ) {
765 foreach ( $this->results as $key => $user ) {
766 $this->results[ $key ] = new WP_User( $user );
772 * Retrieve query variable.
777 * @param string $query_var Query variable key.
780 public function get( $query_var ) {
781 if ( isset( $this->query_vars[$query_var] ) )
782 return $this->query_vars[$query_var];
788 * Set query variable.
793 * @param string $query_var Query variable key.
794 * @param mixed $value Query variable value.
796 public function set( $query_var, $value ) {
797 $this->query_vars[$query_var] = $value;
801 * Used internally to generate an SQL string for searching across multiple columns
806 * @param string $string
808 * @param bool $wild Whether to allow wildcard searches. Default is false for Network Admin, true for
809 * single site. Single site allows leading and trailing wildcards, Network Admin only trailing.
812 protected function get_search_sql( $string, $cols, $wild = false ) {
816 $leading_wild = ( 'leading' == $wild || 'both' == $wild ) ? '%' : '';
817 $trailing_wild = ( 'trailing' == $wild || 'both' == $wild ) ? '%' : '';
818 $like = $leading_wild . $wpdb->esc_like( $string ) . $trailing_wild;
820 foreach ( $cols as $col ) {
821 if ( 'ID' == $col ) {
822 $searches[] = $wpdb->prepare( "$col = %s", $string );
824 $searches[] = $wpdb->prepare( "$col LIKE %s", $like );
828 return ' AND (' . implode(' OR ', $searches) . ')';
832 * Return the list of users.
837 * @return array Array of results.
839 public function get_results() {
840 return $this->results;
844 * Return the total number of users for the current query.
849 * @return array Array of total users.
851 public function get_total() {
852 return $this->total_users;
856 * Make private properties readable for backwards compatibility.
861 * @param string $name Property to get.
862 * @return mixed Property.
864 public function __get( $name ) {
869 * Make private properties settable for backwards compatibility.
874 * @param string $name Property to set.
875 * @param mixed $value Property value.
876 * @return mixed Newly-set property.
878 public function __set( $name, $value ) {
879 return $this->$name = $value;
883 * Make private properties checkable for backwards compatibility.
888 * @param string $name Property to check if set.
889 * @return bool Whether the property is set.
891 public function __isset( $name ) {
892 return isset( $this->$name );
896 * Make private properties un-settable for backwards compatibility.
901 * @param string $name Property to unset.
903 public function __unset( $name ) {
904 unset( $this->$name );
908 * Make private/protected methods readable for backwards compatibility.
913 * @param callable $name Method to call.
914 * @param array $arguments Arguments to pass when calling.
915 * @return mixed|bool Return value of the callback, false otherwise.
917 public function __call( $name, $arguments ) {
918 return call_user_func_array( array( $this, $name ), $arguments );
923 * Retrieve list of users matching criteria.
927 * @uses WP_User_Query See for default arguments and information.
929 * @param array $args Optional. Array of arguments.
930 * @return array List of users.
932 function get_users( $args = array() ) {
934 $args = wp_parse_args( $args );
935 $args['count_total'] = false;
937 $user_search = new WP_User_Query($args);
939 return (array) $user_search->get_results();
943 * Get the blogs a user belongs to.
947 * @global wpdb $wpdb WordPress database object for queries.
949 * @param int $user_id User ID
950 * @param bool $all Whether to retrieve all blogs, or only blogs that are not
951 * marked as deleted, archived, or spam.
952 * @return array A list of the user's blogs. An empty array if the user doesn't exist
953 * or belongs to no blogs.
955 function get_blogs_of_user( $user_id, $all = false ) {
958 $user_id = (int) $user_id;
960 // Logged out users can't have blogs
961 if ( empty( $user_id ) )
964 $keys = get_user_meta( $user_id );
965 if ( empty( $keys ) )
968 if ( ! is_multisite() ) {
969 $blog_id = get_current_blog_id();
970 $blogs = array( $blog_id => new stdClass );
971 $blogs[ $blog_id ]->userblog_id = $blog_id;
972 $blogs[ $blog_id ]->blogname = get_option('blogname');
973 $blogs[ $blog_id ]->domain = '';
974 $blogs[ $blog_id ]->path = '';
975 $blogs[ $blog_id ]->site_id = 1;
976 $blogs[ $blog_id ]->siteurl = get_option('siteurl');
977 $blogs[ $blog_id ]->archived = 0;
978 $blogs[ $blog_id ]->spam = 0;
979 $blogs[ $blog_id ]->deleted = 0;
985 if ( isset( $keys[ $wpdb->base_prefix . 'capabilities' ] ) && defined( 'MULTISITE' ) ) {
986 $blog = get_blog_details( 1 );
987 if ( $blog && isset( $blog->domain ) && ( $all || ( ! $blog->archived && ! $blog->spam && ! $blog->deleted ) ) ) {
988 $blogs[ 1 ] = (object) array(
990 'blogname' => $blog->blogname,
991 'domain' => $blog->domain,
992 'path' => $blog->path,
993 'site_id' => $blog->site_id,
994 'siteurl' => $blog->siteurl,
1000 unset( $keys[ $wpdb->base_prefix . 'capabilities' ] );
1003 $keys = array_keys( $keys );
1005 foreach ( $keys as $key ) {
1006 if ( 'capabilities' !== substr( $key, -12 ) )
1008 if ( $wpdb->base_prefix && 0 !== strpos( $key, $wpdb->base_prefix ) )
1010 $blog_id = str_replace( array( $wpdb->base_prefix, '_capabilities' ), '', $key );
1011 if ( ! is_numeric( $blog_id ) )
1014 $blog_id = (int) $blog_id;
1015 $blog = get_blog_details( $blog_id );
1016 if ( $blog && isset( $blog->domain ) && ( $all || ( ! $blog->archived && ! $blog->spam && ! $blog->deleted ) ) ) {
1017 $blogs[ $blog_id ] = (object) array(
1018 'userblog_id' => $blog_id,
1019 'blogname' => $blog->blogname,
1020 'domain' => $blog->domain,
1021 'path' => $blog->path,
1022 'site_id' => $blog->site_id,
1023 'siteurl' => $blog->siteurl,
1032 * Filter the list of blogs a user belongs to.
1036 * @param array $blogs An array of blog objects belonging to the user.
1037 * @param int $user_id User ID.
1038 * @param bool $all Whether the returned blogs array should contain all blogs, including
1039 * those marked 'deleted', 'archived', or 'spam'. Default false.
1041 return apply_filters( 'get_blogs_of_user', $blogs, $user_id, $all );
1045 * Find out whether a user is a member of a given blog.
1048 * @uses get_blogs_of_user()
1050 * @param int $user_id Optional. The unique ID of the user. Defaults to the current user.
1051 * @param int $blog_id Optional. ID of the blog to check. Defaults to the current site.
1054 function is_user_member_of_blog( $user_id = 0, $blog_id = 0 ) {
1055 $user_id = (int) $user_id;
1056 $blog_id = (int) $blog_id;
1058 if ( empty( $user_id ) )
1059 $user_id = get_current_user_id();
1061 if ( empty( $blog_id ) )
1062 $blog_id = get_current_blog_id();
1064 $blogs = get_blogs_of_user( $user_id );
1065 return array_key_exists( $blog_id, $blogs );
1069 * Add meta data field to a user.
1071 * Post meta data is called "Custom Fields" on the Administration Screens.
1074 * @uses add_metadata()
1075 * @link http://codex.wordpress.org/Function_Reference/add_user_meta
1077 * @param int $user_id User ID.
1078 * @param string $meta_key Metadata name.
1079 * @param mixed $meta_value Metadata value.
1080 * @param bool $unique Optional, default is false. Whether the same key should not be added.
1081 * @return int|bool Meta ID on success, false on failure.
1083 function add_user_meta($user_id, $meta_key, $meta_value, $unique = false) {
1084 return add_metadata('user', $user_id, $meta_key, $meta_value, $unique);
1088 * Remove metadata matching criteria from a user.
1090 * You can match based on the key, or key and value. Removing based on key and
1091 * value, will keep from removing duplicate metadata with the same key. It also
1092 * allows removing all metadata matching key, if needed.
1095 * @uses delete_metadata()
1096 * @link http://codex.wordpress.org/Function_Reference/delete_user_meta
1098 * @param int $user_id user ID
1099 * @param string $meta_key Metadata name.
1100 * @param mixed $meta_value Optional. Metadata value.
1101 * @return bool True on success, false on failure.
1103 function delete_user_meta($user_id, $meta_key, $meta_value = '') {
1104 return delete_metadata('user', $user_id, $meta_key, $meta_value);
1108 * Retrieve user meta field for a user.
1111 * @uses get_metadata()
1112 * @link http://codex.wordpress.org/Function_Reference/get_user_meta
1114 * @param int $user_id User ID.
1115 * @param string $key Optional. The meta key to retrieve. By default, returns data for all keys.
1116 * @param bool $single Whether to return a single value.
1117 * @return mixed Will be an array if $single is false. Will be value of meta data field if $single
1120 function get_user_meta($user_id, $key = '', $single = false) {
1121 return get_metadata('user', $user_id, $key, $single);
1125 * Update user meta field based on user ID.
1127 * Use the $prev_value parameter to differentiate between meta fields with the
1128 * same key and user ID.
1130 * If the meta field for the user does not exist, it will be added.
1133 * @uses update_metadata
1134 * @link http://codex.wordpress.org/Function_Reference/update_user_meta
1136 * @param int $user_id User ID.
1137 * @param string $meta_key Metadata key.
1138 * @param mixed $meta_value Metadata value.
1139 * @param mixed $prev_value Optional. Previous value to check before removing.
1140 * @return int|bool Meta ID if the key didn't exist, true on successful update, false on failure.
1142 function update_user_meta($user_id, $meta_key, $meta_value, $prev_value = '') {
1143 return update_metadata('user', $user_id, $meta_key, $meta_value, $prev_value);
1147 * Count number of users who have each of the user roles.
1149 * Assumes there are neither duplicated nor orphaned capabilities meta_values.
1150 * Assumes role names are unique phrases. Same assumption made by WP_User_Query::prepare_query()
1151 * Using $strategy = 'time' this is CPU-intensive and should handle around 10^7 users.
1152 * Using $strategy = 'memory' this is memory-intensive and should handle around 10^5 users, but see WP Bug #12257.
1155 * @param string $strategy 'time' or 'memory'
1156 * @return array Includes a grand total and an array of counts indexed by role strings.
1158 function count_users($strategy = 'time') {
1159 global $wpdb, $wp_roles;
1162 $id = get_current_blog_id();
1163 $blog_prefix = $wpdb->get_blog_prefix($id);
1166 if ( 'time' == $strategy ) {
1169 if ( ! isset( $wp_roles ) )
1170 $wp_roles = new WP_Roles();
1172 $avail_roles = $wp_roles->get_names();
1174 // Build a CPU-intensive query that will return concise information.
1175 $select_count = array();
1176 foreach ( $avail_roles as $this_role => $name ) {
1177 $select_count[] = $wpdb->prepare( "COUNT(NULLIF(`meta_value` LIKE %s, false))", '%' . $wpdb->esc_like( '"' . $this_role . '"' ) . '%');
1179 $select_count = implode(', ', $select_count);
1181 // Add the meta_value index to the selection list, then run the query.
1182 $row = $wpdb->get_row( "SELECT $select_count, COUNT(*) FROM $wpdb->usermeta WHERE meta_key = '{$blog_prefix}capabilities'", ARRAY_N );
1184 // Run the previous loop again to associate results with role names.
1186 $role_counts = array();
1187 foreach ( $avail_roles as $this_role => $name ) {
1188 $count = (int) $row[$col++];
1190 $role_counts[$this_role] = $count;
1194 // Get the meta_value index from the end of the result set.
1195 $total_users = (int) $row[$col];
1197 $result['total_users'] = $total_users;
1198 $result['avail_roles'] =& $role_counts;
1200 $avail_roles = array();
1202 $users_of_blog = $wpdb->get_col( "SELECT meta_value FROM $wpdb->usermeta WHERE meta_key = '{$blog_prefix}capabilities'" );
1204 foreach ( $users_of_blog as $caps_meta ) {
1205 $b_roles = maybe_unserialize($caps_meta);
1206 if ( ! is_array( $b_roles ) )
1208 foreach ( $b_roles as $b_role => $val ) {
1209 if ( isset($avail_roles[$b_role]) ) {
1210 $avail_roles[$b_role]++;
1212 $avail_roles[$b_role] = 1;
1217 $result['total_users'] = count( $users_of_blog );
1218 $result['avail_roles'] =& $avail_roles;
1225 // Private helper functions
1229 * Set up global user vars.
1231 * Used by wp_set_current_user() for back compat. Might be deprecated in the future.
1234 * @global string $userdata User description.
1235 * @global string $user_login The user username for logging in
1236 * @global int $user_level The level of the user
1237 * @global int $user_ID The ID of the user
1238 * @global string $user_email The email address of the user
1239 * @global string $user_url The url in the user's profile
1240 * @global string $user_identity The display name of the user
1242 * @param int $for_user_id Optional. User ID to set up global data.
1244 function setup_userdata($for_user_id = '') {
1245 global $user_login, $userdata, $user_level, $user_ID, $user_email, $user_url, $user_identity;
1247 if ( '' == $for_user_id )
1248 $for_user_id = get_current_user_id();
1249 $user = get_userdata( $for_user_id );
1255 $user_login = $user_email = $user_url = $user_identity = '';
1259 $user_ID = (int) $user->ID;
1260 $user_level = (int) $user->user_level;
1262 $user_login = $user->user_login;
1263 $user_email = $user->user_email;
1264 $user_url = $user->user_url;
1265 $user_identity = $user->display_name;
1269 * Create dropdown HTML content of users.
1271 * The content can either be displayed, which it is by default or retrieved by
1272 * setting the 'echo' argument. The 'include' and 'exclude' arguments do not
1273 * need to be used; all users will be displayed in that case. Only one can be
1274 * used, either 'include' or 'exclude', but not both.
1276 * The available arguments are as follows:
1280 * @global wpdb $wpdb WordPress database object for queries.
1282 * @param array|string $args {
1283 * Optional. Array or string of arguments to generate a drop-down of users.
1284 * {@see WP_User_Query::prepare_query() for additional available arguments.
1286 * @type string $show_option_all Text to show as the drop-down default (all).
1288 * @type string $show_option_none Text to show as the drop-down default when no
1289 * users were found. Default empty.
1290 * @type int|string $option_none_value Value to use for $show_option_non when no users
1291 * were found. Default -1.
1292 * @type string $hide_if_only_one_author Whether to skip generating the drop-down
1293 * if only one user was found. Default empty.
1294 * @type string $orderby Field to order found users by. Accepts user fields.
1295 * Default 'display_name'.
1296 * @type string $order Whether to order users in ascending or descending
1297 * order. Accepts 'ASC' (ascending) or 'DESC' (descending).
1299 * @type array|string $include Array or comma-separated list of user IDs to include.
1301 * @type array|string $exclude Array or comma-separated list of user IDs to exclude.
1303 * @type bool|int $multi Whether to skip the ID attribute on the 'select' element.
1304 * Accepts 1|true or 0|false. Default 0|false.
1305 * @type string $show User table column to display. If the selected item is empty
1306 * then the 'user_login' will be displayed in parentheses.
1307 * Accepts user fields. Default 'display_name'.
1308 * @type int|bool $echo Whether to echo or return the drop-down. Accepts 1|true (echo)
1309 * or 0|false (return). Default 1|true.
1310 * @type int $selected Which user ID should be selected. Default 0.
1311 * @type bool $include_selected Whether to always include the selected user ID in the drop-
1312 * down. Default false.
1313 * @type string $name Name attribute of select element. Default 'user'.
1314 * @type string $id ID attribute of the select element. Default is the value of $name.
1315 * @type string $class Class attribute of the select element. Default empty.
1316 * @type int $blog_id ID of blog (Multisite only). Default is ID of the current blog.
1317 * @type string $who Which type of users to query. Accepts only an empty string or
1318 * 'authors'. Default empty.
1320 * @return string|null Null on display. String of HTML content on retrieve.
1322 function wp_dropdown_users( $args = '' ) {
1324 'show_option_all' => '', 'show_option_none' => '', 'hide_if_only_one_author' => '',
1325 'orderby' => 'display_name', 'order' => 'ASC',
1326 'include' => '', 'exclude' => '', 'multi' => 0,
1327 'show' => 'display_name', 'echo' => 1,
1328 'selected' => 0, 'name' => 'user', 'class' => '', 'id' => '',
1329 'blog_id' => $GLOBALS['blog_id'], 'who' => '', 'include_selected' => false,
1330 'option_none_value' => -1
1333 $defaults['selected'] = is_author() ? get_query_var( 'author' ) : 0;
1335 $r = wp_parse_args( $args, $defaults );
1337 $show_option_all = $r['show_option_all'];
1338 $show_option_none = $r['show_option_none'];
1339 $option_none_value = $r['option_none_value'];
1341 $query_args = wp_array_slice_assoc( $r, array( 'blog_id', 'include', 'exclude', 'orderby', 'order', 'who' ) );
1342 $query_args['fields'] = array( 'ID', 'user_login', $show );
1343 $users = get_users( $query_args );
1346 if ( ! empty( $users ) && ( empty( $r['hide_if_only_one_author'] ) || count( $users ) > 1 ) ) {
1347 $name = esc_attr( $r['name'] );
1348 if ( $r['multi'] && ! $r['id'] ) {
1351 $id = $r['id'] ? " id='" . esc_attr( $r['id'] ) . "'" : " id='$name'";
1353 $output = "<select name='{$name}'{$id} class='" . $r['class'] . "'>\n";
1355 if ( $show_option_all ) {
1356 $output .= "\t<option value='0'>$show_option_all</option>\n";
1359 if ( $show_option_none ) {
1360 $_selected = selected( $option_none_value, $r['selected'], false );
1361 $output .= "\t<option value='" . esc_attr( $option_none_value ) . "'$_selected>$show_option_none</option>\n";
1364 $found_selected = false;
1365 foreach ( (array) $users as $user ) {
1366 $user->ID = (int) $user->ID;
1367 $_selected = selected( $user->ID, $r['selected'], false );
1369 $found_selected = true;
1371 $display = ! empty( $user->$show ) ? $user->$show : '('. $user->user_login . ')';
1372 $output .= "\t<option value='$user->ID'$_selected>" . esc_html( $display ) . "</option>\n";
1375 if ( $r['include_selected'] && ! $found_selected && ( $r['selected'] > 0 ) ) {
1376 $user = get_userdata( $r['selected'] );
1377 $_selected = selected( $user->ID, $r['selected'], false );
1378 $display = ! empty( $user->$show ) ? $user->$show : '('. $user->user_login . ')';
1379 $output .= "\t<option value='$user->ID'$_selected>" . esc_html( $display ) . "</option>\n";
1382 $output .= "</select>";
1386 * Filter the wp_dropdown_users() HTML output.
1390 * @param string $output HTML output generated by wp_dropdown_users().
1392 $html = apply_filters( 'wp_dropdown_users', $output );
1401 * Sanitize user field based on context.
1403 * Possible context values are: 'raw', 'edit', 'db', 'display', 'attribute' and 'js'. The
1404 * 'display' context is used by default. 'attribute' and 'js' contexts are treated like 'display'
1405 * when calling filters.
1409 * @param string $field The user Object field name.
1410 * @param mixed $value The user Object value.
1411 * @param int $user_id user ID.
1412 * @param string $context How to sanitize user fields. Looks for 'raw', 'edit', 'db', 'display',
1413 * 'attribute' and 'js'.
1414 * @return mixed Sanitized value.
1416 function sanitize_user_field($field, $value, $user_id, $context) {
1417 $int_fields = array('ID');
1418 if ( in_array($field, $int_fields) )
1419 $value = (int) $value;
1421 if ( 'raw' == $context )
1424 if ( !is_string($value) && !is_numeric($value) )
1427 $prefixed = false !== strpos( $field, 'user_' );
1429 if ( 'edit' == $context ) {
1432 /** This filter is documented in wp-includes/post.php */
1433 $value = apply_filters( "edit_{$field}", $value, $user_id );
1437 * Filter a user field value in the 'edit' context.
1439 * The dynamic portion of the hook name, $field, refers to the prefixed user
1440 * field being filtered, such as 'user_login', 'user_email', 'first_name', etc.
1444 * @param mixed $value Value of the prefixed user field.
1445 * @param int $user_id User ID.
1447 $value = apply_filters( "edit_user_{$field}", $value, $user_id );
1450 if ( 'description' == $field )
1451 $value = esc_html( $value ); // textarea_escaped?
1453 $value = esc_attr($value);
1454 } else if ( 'db' == $context ) {
1456 /** This filter is documented in wp-includes/post.php */
1457 $value = apply_filters( "pre_{$field}", $value );
1461 * Filter the value of a user field in the 'db' context.
1463 * The dynamic portion of the hook name, $field, refers to the prefixed user
1464 * field being filtered, such as 'user_login', 'user_email', 'first_name', etc.
1468 * @param mixed $value Value of the prefixed user field.
1470 $value = apply_filters( "pre_user_{$field}", $value );
1473 // Use display filters by default.
1476 /** This filter is documented in wp-includes/post.php */
1477 $value = apply_filters( $field, $value, $user_id, $context );
1481 * Filter the value of a user field in a standard context.
1483 * The dynamic portion of the hook name, $field, refers to the prefixed user
1484 * field being filtered, such as 'user_login', 'user_email', 'first_name', etc.
1488 * @param mixed $value The user object value to sanitize.
1489 * @param int $user_id User ID.
1490 * @param string $context The context to filter within.
1492 $value = apply_filters( "user_{$field}", $value, $user_id, $context );
1496 if ( 'user_url' == $field )
1497 $value = esc_url($value);
1499 if ( 'attribute' == $context )
1500 $value = esc_attr($value);
1501 else if ( 'js' == $context )
1502 $value = esc_js($value);
1508 * Update all user caches
1512 * @param object $user User object to be cached
1514 function update_user_caches($user) {
1515 wp_cache_add($user->ID, $user, 'users');
1516 wp_cache_add($user->user_login, $user->ID, 'userlogins');
1517 wp_cache_add($user->user_email, $user->ID, 'useremail');
1518 wp_cache_add($user->user_nicename, $user->ID, 'userslugs');
1522 * Clean all user caches
1526 * @param WP_User|int $user User object or ID to be cleaned from the cache
1528 function clean_user_cache( $user ) {
1529 if ( is_numeric( $user ) )
1530 $user = new WP_User( $user );
1532 if ( ! $user->exists() )
1535 wp_cache_delete( $user->ID, 'users' );
1536 wp_cache_delete( $user->user_login, 'userlogins' );
1537 wp_cache_delete( $user->user_email, 'useremail' );
1538 wp_cache_delete( $user->user_nicename, 'userslugs' );
1542 * Checks whether the given username exists.
1546 * @param string $username Username.
1547 * @return null|int The user's ID on success, and null on failure.
1549 function username_exists( $username ) {
1550 if ( $user = get_user_by('login', $username ) ) {
1558 * Checks whether the given email exists.
1562 * @param string $email Email.
1563 * @return bool|int The user's ID on success, and false on failure.
1565 function email_exists( $email ) {
1566 if ( $user = get_user_by('email', $email) )
1573 * Checks whether an username is valid.
1576 * @uses apply_filters() Calls 'validate_username' hook on $valid check and $username as parameters
1578 * @param string $username Username.
1579 * @return bool Whether username given is valid
1581 function validate_username( $username ) {
1582 $sanitized = sanitize_user( $username, true );
1583 $valid = ( $sanitized == $username );
1585 * Filter whether the provided username is valid or not.
1589 * @param bool $valid Whether given username is valid.
1590 * @param string $username Username to check.
1592 return apply_filters( 'validate_username', $valid, $username );
1596 * Insert an user into the database.
1598 * Most of the $userdata array fields have filters associated with the values.
1599 * The exceptions are 'rich_editing', 'role', 'jabber', 'aim', 'yim',
1600 * 'user_registered', and 'ID'. The filters have the prefix 'pre_user_' followed
1601 * by the field name. An example using 'description' would have the filter
1602 * called, 'pre_user_description' that can be hooked into.
1606 * @global wpdb $wpdb WordPress database object for queries.
1608 * @param array $userdata {
1609 * An array, object, or WP_User object of user data arguments.
1611 * @type int $ID User ID. If supplied, the user will be updated.
1612 * @type string $user_pass The plain-text user password.
1613 * @type string $user_login The user's login username.
1614 * @type string $user_nicename The URL-friendly user name.
1615 * @type string $user_url The user URL.
1616 * @type string $user_email The user email address.
1617 * @type string $display_name The user's display name.
1618 * Default is the the user's username.
1619 * @type string $nickname The user's nickname. Default
1620 * Default is the the user's username.
1621 * @type string $first_name The user's first name. For new users, will be used
1622 * to build $display_name if unspecified.
1623 * @type stirng $last_name The user's last name. For new users, will be used
1624 * to build $display_name if unspecified.
1625 * @type string|bool $rich_editing Whether to enable the rich-editor for the user. False
1627 * @type string $date_registered Date the user registered. Format is 'Y-m-d H:i:s'.
1628 * @type string $role User's role.
1629 * @type string $jabber User's Jabber account username.
1630 * @type string $aim User's AIM account username.
1631 * @type string $yim User's Yahoo! messenger username.
1633 * @return int|WP_Error The newly created user's ID or a WP_Error object if the user could not
1636 function wp_insert_user( $userdata ) {
1639 if ( is_a( $userdata, 'stdClass' ) ) {
1640 $userdata = get_object_vars( $userdata );
1641 } elseif ( is_a( $userdata, 'WP_User' ) ) {
1642 $userdata = $userdata->to_array();
1644 // Are we updating or creating?
1645 if ( ! empty( $userdata['ID'] ) ) {
1646 $ID = (int) $userdata['ID'];
1648 $old_user_data = WP_User::get_data_by( 'id', $ID );
1649 // hashed in wp_update_user(), plaintext if called directly
1650 $user_pass = $userdata['user_pass'];
1653 // Hash the password
1654 $user_pass = wp_hash_password( $userdata['user_pass'] );
1657 $sanitized_user_login = sanitize_user( $userdata['user_login'], true );
1660 * Filter a username after it has been sanitized.
1662 * This filter is called before the user is created or updated.
1666 * @param string $sanitized_user_login Username after it has been sanitized.
1668 $pre_user_login = apply_filters( 'pre_user_login', $sanitized_user_login );
1670 //Remove any non-printable chars from the login string to see if we have ended up with an empty username
1671 $user_login = trim( $pre_user_login );
1673 if ( empty( $user_login ) ) {
1674 return new WP_Error('empty_user_login', __('Cannot create a user with an empty login name.') );
1676 if ( ! $update && username_exists( $user_login ) ) {
1677 return new WP_Error( 'existing_user_login', __( 'Sorry, that username already exists!' ) );
1679 if ( empty( $userdata['user_nicename'] ) ) {
1680 $user_nicename = sanitize_title( $user_login );
1682 $user_nicename = $userdata['user_nicename'];
1685 // Store values to save in user meta.
1689 * Filter a user's nicename before the user is created or updated.
1693 * @param string $user_nicename The user's nicename.
1695 $user_nicename = apply_filters( 'pre_user_nicename', $user_nicename );
1697 $raw_user_url = empty( $userdata['user_url'] ) ? '' : $userdata['user_url'];
1700 * Filter a user's URL before the user is created or updated.
1704 * @param string $raw_user_url The user's URL.
1706 $user_url = apply_filters( 'pre_user_url', $raw_user_url );
1708 $raw_user_email = empty( $userdata['user_email'] ) ? '' : $userdata['user_email'];
1711 * Filter a user's email before the user is created or updated.
1715 * @param string $raw_user_email The user's email.
1717 $user_email = apply_filters( 'pre_user_email', $raw_user_email );
1719 if ( ! $update && ! defined( 'WP_IMPORTING' ) && email_exists( $user_email ) ) {
1720 return new WP_Error( 'existing_user_email', __( 'Sorry, that email address is already used!' ) );
1722 $nickname = empty( $userdata['nickname'] ) ? $user_login : $userdata['nickname'];
1725 * Filter a user's nickname before the user is created or updated.
1729 * @param string $nickname The user's nickname.
1731 $meta['nickname'] = apply_filters( 'pre_user_nickname', $nickname );
1733 $first_name = empty( $userdata['first_name'] ) ? '' : $userdata['first_name'];
1736 * Filter a user's first name before the user is created or updated.
1740 * @param string $first_name The user's first name.
1742 $meta['first_name'] = apply_filters( 'pre_user_first_name', $first_name );
1744 $last_name = empty( $userdata['last_name'] ) ? '' : $userdata['last_name'];
1747 * Filter a user's last name before the user is created or updated.
1751 * @param string $last_name The user's last name.
1753 $meta['last_name'] = apply_filters( 'pre_user_last_name', $last_name );
1755 if ( empty( $userdata['display_name'] ) ) {
1757 $display_name = $user_login;
1758 } elseif ( $meta['first_name'] && $meta['last_name'] ) {
1759 /* translators: 1: first name, 2: last name */
1760 $display_name = sprintf( _x( '%1$s %2$s', 'Display name based on first name and last name' ), $meta['first_name'], $meta['last_name'] );
1761 } elseif ( $meta['first_name'] ) {
1762 $display_name = $meta['first_name'];
1763 } elseif ( $meta['last_name'] ) {
1764 $display_name = $meta['last_name'];
1766 $display_name = $user_login;
1769 $display_name = $userdata['display_name'];
1773 * Filter a user's display name before the user is created or updated.
1777 * @param string $display_name The user's display name.
1779 $display_name = apply_filters( 'pre_user_display_name', $display_name );
1781 $description = empty( $userdata['description'] ) ? '' : $userdata['description'];
1784 * Filter a user's description before the user is created or updated.
1788 * @param string $description The user's description.
1790 $meta['description'] = apply_filters( 'pre_user_description', $description );
1792 $meta['rich_editing'] = empty( $userdata['rich_editing'] ) ? 'true' : $userdata['rich_editing'];
1794 $meta['comment_shortcuts'] = empty( $userdata['comment_shortcuts'] ) ? 'false' : $userdata['comment_shortcuts'];
1796 $admin_color = empty( $userdata['admin_color'] ) ? 'fresh' : $userdata['admin_color'];
1797 $meta['admin_color'] = preg_replace( '|[^a-z0-9 _.\-@]|i', '', $admin_color );
1799 $meta['use_ssl'] = empty( $userdata['use_ssl'] ) ? 0 : $userdata['use_ssl'];
1801 $user_registered = empty( $userdata['user_registered'] ) ? gmdate( 'Y-m-d H:i:s' ) : $userdata['user_registered'];
1803 $meta['show_admin_bar_front'] = empty( $userdata['show_admin_bar_front'] ) ? 'true' : $userdata['show_admin_bar_front'];
1805 $user_nicename_check = $wpdb->get_var( $wpdb->prepare("SELECT ID FROM $wpdb->users WHERE user_nicename = %s AND user_login != %s LIMIT 1" , $user_nicename, $user_login));
1807 if ( $user_nicename_check ) {
1809 while ($user_nicename_check) {
1810 $alt_user_nicename = $user_nicename . "-$suffix";
1811 $user_nicename_check = $wpdb->get_var( $wpdb->prepare("SELECT ID FROM $wpdb->users WHERE user_nicename = %s AND user_login != %s LIMIT 1" , $alt_user_nicename, $user_login));
1814 $user_nicename = $alt_user_nicename;
1817 $compacted = compact( 'user_pass', 'user_email', 'user_url', 'user_nicename', 'display_name', 'user_registered' );
1818 $data = wp_unslash( $compacted );
1821 $wpdb->update( $wpdb->users, $data, compact( 'ID' ) );
1822 $user_id = (int) $ID;
1824 $wpdb->insert( $wpdb->users, $data + compact( 'user_login' ) );
1825 $user_id = (int) $wpdb->insert_id;
1828 $user = new WP_User( $user_id );
1830 // Update user meta.
1831 foreach ( $meta as $key => $value ) {
1832 update_user_meta( $user_id, $key, $value );
1835 foreach ( wp_get_user_contact_methods( $user ) as $key => $value ) {
1836 if ( isset( $userdata[ $key ] ) ) {
1837 update_user_meta( $user_id, $key, $userdata[ $key ] );
1841 if ( isset( $userdata['role'] ) ) {
1842 $user->set_role( $userdata['role'] );
1843 } elseif ( ! $update ) {
1844 $user->set_role(get_option('default_role'));
1846 wp_cache_delete( $user_id, 'users' );
1847 wp_cache_delete( $user_login, 'userlogins' );
1851 * Fires immediately after an existing user is updated.
1855 * @param int $user_id User ID.
1856 * @param object $old_user_data Object containing user's data prior to update.
1858 do_action( 'profile_update', $user_id, $old_user_data );
1861 * Fires immediately after a new user is registered.
1865 * @param int $user_id User ID.
1867 do_action( 'user_register', $user_id );
1874 * Update an user in the database.
1876 * It is possible to update a user's password by specifying the 'user_pass'
1877 * value in the $userdata parameter array.
1879 * If current user's password is being updated, then the cookies will be
1884 * @see wp_insert_user() For what fields can be set in $userdata.
1886 * @param mixed $userdata An array of user data or a user object of type stdClass or WP_User.
1887 * @return int|WP_Error The updated user's ID or a WP_Error object if the user could not be updated.
1889 function wp_update_user($userdata) {
1890 if ( is_a( $userdata, 'stdClass' ) )
1891 $userdata = get_object_vars( $userdata );
1892 elseif ( is_a( $userdata, 'WP_User' ) )
1893 $userdata = $userdata->to_array();
1895 $ID = (int) $userdata['ID'];
1897 // First, get all of the original fields
1898 $user_obj = get_userdata( $ID );
1900 return new WP_Error( 'invalid_user_id', __( 'Invalid user ID.' ) );
1902 $user = $user_obj->to_array();
1904 // Add additional custom fields
1905 foreach ( _get_additional_user_keys( $user_obj ) as $key ) {
1906 $user[ $key ] = get_user_meta( $ID, $key, true );
1909 // Escape data pulled from DB.
1910 $user = add_magic_quotes( $user );
1912 // If password is changing, hash it now.
1913 if ( ! empty($userdata['user_pass']) ) {
1914 $plaintext_pass = $userdata['user_pass'];
1915 $userdata['user_pass'] = wp_hash_password($userdata['user_pass']);
1918 wp_cache_delete($user[ 'user_email' ], 'useremail');
1920 // Merge old and new fields with new fields overwriting old ones.
1921 $userdata = array_merge($user, $userdata);
1922 $user_id = wp_insert_user($userdata);
1924 // Update the cookies if the password changed.
1925 $current_user = wp_get_current_user();
1926 if ( $current_user->ID == $ID ) {
1927 if ( isset($plaintext_pass) ) {
1928 wp_clear_auth_cookie();
1930 // Here we calculate the expiration length of the current auth cookie and compare it to the default expiration.
1931 // If it's greater than this, then we know the user checked 'Remember Me' when they logged in.
1932 $logged_in_cookie = wp_parse_auth_cookie( '', 'logged_in' );
1933 /** This filter is documented in wp-includes/pluggable.php */
1934 $default_cookie_life = apply_filters( 'auth_cookie_expiration', ( 2 * DAY_IN_SECONDS ), $ID, false );
1935 $remember = ( ( $logged_in_cookie['expiration'] - time() ) > $default_cookie_life );
1937 wp_set_auth_cookie( $ID, $remember );
1945 * A simpler way of inserting an user into the database.
1947 * Creates a new user with just the username, password, and email. For more
1948 * complex user creation use wp_insert_user() to specify more information.
1951 * @see wp_insert_user() More complete way to create a new user
1953 * @param string $username The user's username.
1954 * @param string $password The user's password.
1955 * @param string $email The user's email (optional).
1956 * @return int The new user's ID.
1958 function wp_create_user($username, $password, $email = '') {
1959 $user_login = wp_slash( $username );
1960 $user_email = wp_slash( $email );
1961 $user_pass = $password;
1963 $userdata = compact('user_login', 'user_email', 'user_pass');
1964 return wp_insert_user($userdata);
1968 * Return a list of meta keys that wp_insert_user() is supposed to set.
1973 * @param object $user WP_User instance.
1976 function _get_additional_user_keys( $user ) {
1977 $keys = array( 'first_name', 'last_name', 'nickname', 'description', 'rich_editing', 'comment_shortcuts', 'admin_color', 'use_ssl', 'show_admin_bar_front' );
1978 return array_merge( $keys, array_keys( wp_get_user_contact_methods( $user ) ) );
1982 * Set up the user contact methods.
1984 * Default contact methods were removed in 3.6. A filter dictates contact methods.
1988 * @param WP_User $user Optional. WP_User object.
1989 * @return array Array of contact methods and their labels.
1991 function wp_get_user_contact_methods( $user = null ) {
1993 if ( get_site_option( 'initial_db_version' ) < 23588 ) {
1995 'aim' => __( 'AIM' ),
1996 'yim' => __( 'Yahoo IM' ),
1997 'jabber' => __( 'Jabber / Google Talk' )
2002 * Filter the user contact methods.
2006 * @param array $methods Array of contact methods and their labels.
2007 * @param WP_User $user WP_User object.
2009 return apply_filters( 'user_contactmethods', $methods, $user );
2013 * The old private function for setting up user contact methods.
2018 function _wp_get_user_contactmethods( $user = null ) {
2019 return wp_get_user_contact_methods( $user );
2023 * Retrieves a user row based on password reset key and login
2025 * A key is considered 'expired' if it exactly matches the value of the
2026 * user_activation_key field, rather than being matched after going through the
2027 * hashing process. This field is now hashed; old values are no longer accepted
2028 * but have a different WP_Error code so good user feedback can be provided.
2030 * @global wpdb $wpdb WordPress database object for queries.
2032 * @param string $key Hash to validate sending user's password.
2033 * @param string $login The user login.
2034 * @return WP_User|WP_Error WP_User object on success, WP_Error object for invalid or expired keys.
2036 function check_password_reset_key($key, $login) {
2037 global $wpdb, $wp_hasher;
2039 $key = preg_replace('/[^a-z0-9]/i', '', $key);
2041 if ( empty( $key ) || !is_string( $key ) )
2042 return new WP_Error('invalid_key', __('Invalid key'));
2044 if ( empty($login) || !is_string($login) )
2045 return new WP_Error('invalid_key', __('Invalid key'));
2047 $row = $wpdb->get_row( $wpdb->prepare( "SELECT ID, user_activation_key FROM $wpdb->users WHERE user_login = %s", $login ) );
2049 return new WP_Error('invalid_key', __('Invalid key'));
2051 if ( empty( $wp_hasher ) ) {
2052 require_once ABSPATH . WPINC . '/class-phpass.php';
2053 $wp_hasher = new PasswordHash( 8, true );
2056 if ( $wp_hasher->CheckPassword( $key, $row->user_activation_key ) )
2057 return get_userdata( $row->ID );
2059 if ( $key === $row->user_activation_key ) {
2060 $return = new WP_Error( 'expired_key', __( 'Invalid key' ) );
2061 $user_id = $row->ID;
2064 * Filter the return value of check_password_reset_key() when an
2065 * old-style key is used (plain-text key was stored in the database).
2069 * @param WP_Error $return A WP_Error object denoting an expired key.
2070 * Return a WP_User object to validate the key.
2071 * @param int $user_id The matched user ID.
2073 return apply_filters( 'password_reset_key_expired', $return, $user_id );
2076 return new WP_Error( 'invalid_key', __( 'Invalid key' ) );
2080 * Handles resetting the user's password.
2082 * @param object $user The user
2083 * @param string $new_pass New password for the user in plaintext
2085 function reset_password( $user, $new_pass ) {
2087 * Fires before the user's password is reset.
2091 * @param object $user The user.
2092 * @param string $new_pass New user password.
2094 do_action( 'password_reset', $user, $new_pass );
2096 wp_set_password( $new_pass, $user->ID );
2097 update_user_option( $user->ID, 'default_password_nag', false, true );
2099 wp_password_change_notification( $user );
2103 * Handles registering a new user.
2105 * @param string $user_login User's username for logging in
2106 * @param string $user_email User's email address to send password and add
2107 * @return int|WP_Error Either user's ID or error on failure.
2109 function register_new_user( $user_login, $user_email ) {
2110 $errors = new WP_Error();
2112 $sanitized_user_login = sanitize_user( $user_login );
2114 * Filter the email address of a user being registered.
2118 * @param string $user_email The email address of the new user.
2120 $user_email = apply_filters( 'user_registration_email', $user_email );
2122 // Check the username
2123 if ( $sanitized_user_login == '' ) {
2124 $errors->add( 'empty_username', __( '<strong>ERROR</strong>: Please enter a username.' ) );
2125 } elseif ( ! validate_username( $user_login ) ) {
2126 $errors->add( 'invalid_username', __( '<strong>ERROR</strong>: This username is invalid because it uses illegal characters. Please enter a valid username.' ) );
2127 $sanitized_user_login = '';
2128 } elseif ( username_exists( $sanitized_user_login ) ) {
2129 $errors->add( 'username_exists', __( '<strong>ERROR</strong>: This username is already registered. Please choose another one.' ) );
2132 // Check the e-mail address
2133 if ( $user_email == '' ) {
2134 $errors->add( 'empty_email', __( '<strong>ERROR</strong>: Please type your e-mail address.' ) );
2135 } elseif ( ! is_email( $user_email ) ) {
2136 $errors->add( 'invalid_email', __( '<strong>ERROR</strong>: The email address isn’t correct.' ) );
2138 } elseif ( email_exists( $user_email ) ) {
2139 $errors->add( 'email_exists', __( '<strong>ERROR</strong>: This email is already registered, please choose another one.' ) );
2143 * Fires when submitting registration form data, before the user is created.
2147 * @param string $sanitized_user_login The submitted username after being sanitized.
2148 * @param string $user_email The submitted email.
2149 * @param WP_Error $errors Contains any errors with submitted username and email,
2150 * e.g., an empty field, an invalid username or email,
2151 * or an existing username or email.
2153 do_action( 'register_post', $sanitized_user_login, $user_email, $errors );
2156 * Filter the errors encountered when a new user is being registered.
2158 * The filtered WP_Error object may, for example, contain errors for an invalid
2159 * or existing username or email address. A WP_Error object should always returned,
2160 * but may or may not contain errors.
2162 * If any errors are present in $errors, this will abort the user's registration.
2166 * @param WP_Error $errors A WP_Error object containing any errors encountered
2167 * during registration.
2168 * @param string $sanitized_user_login User's username after it has been sanitized.
2169 * @param string $user_email User's email.
2171 $errors = apply_filters( 'registration_errors', $errors, $sanitized_user_login, $user_email );
2173 if ( $errors->get_error_code() )
2176 $user_pass = wp_generate_password( 12, false );
2177 $user_id = wp_create_user( $sanitized_user_login, $user_pass, $user_email );
2178 if ( ! $user_id || is_wp_error( $user_id ) ) {
2179 $errors->add( 'registerfail', sprintf( __( '<strong>ERROR</strong>: Couldn’t register you… please contact the <a href="mailto:%s">webmaster</a> !' ), get_option( 'admin_email' ) ) );
2183 update_user_option( $user_id, 'default_password_nag', true, true ); //Set up the Password change nag.
2185 wp_new_user_notification( $user_id, $user_pass );
2191 * Retrieve the current session token from the logged_in cookie.
2195 * @return string Token.
2197 function wp_get_session_token() {
2198 $cookie = wp_parse_auth_cookie( '', 'logged_in' );
2199 return ! empty( $cookie['token'] ) ? $cookie['token'] : '';
2203 * Retrieve a list of sessions for the current user.
2206 * @return array Array of sessions.
2208 function wp_get_all_sessions() {
2209 $manager = WP_Session_Tokens::get_instance( get_current_user_id() );
2210 return $manager->get_all();
2214 * Remove the current session token from the database.
2218 function wp_destroy_current_session() {
2219 $token = wp_get_session_token();
2221 $manager = WP_Session_Tokens::get_instance( get_current_user_id() );
2222 $manager->destroy( $token );
2227 * Remove all but the current session token for the current user for the database.
2231 function wp_destroy_other_sessions() {
2232 $token = wp_get_session_token();
2234 $manager = WP_Session_Tokens::get_instance( get_current_user_id() );
2235 $manager->destroy_others( $token );
2240 * Remove all session tokens for the current user from the database.
2244 function wp_destroy_all_sessions() {
2245 $manager = WP_Session_Tokens::get_instance( get_current_user_id() );
2246 $manager->destroy_all();