Title: Users | Page 9 of 10 | Developer.WordPress.org --- # @package: Users * hook[validate_username](https://developer.wordpress.org/reference/hooks/validate_username/) * Filters whether the provided username is valid. * Used by [1 function](https://developer.wordpress.org/reference/hooks/validate_username/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/validate_username/#uses) | Source: [wp-includes/user.php:2135](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/user.php#L2135-L2135) * function[wp_insert_user()](https://developer.wordpress.org/reference/functions/wp_insert_user/) * Inserts a user into the database. * Used by [4 functions](https://developer.wordpress.org/reference/functions/wp_insert_user/#used-by) | Uses [25 functions](https://developer.wordpress.org/reference/functions/wp_insert_user/#uses) | Source: [wp-includes/user.php:2205](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/user.php#L2205-L2658) * hook[pre_user_login](https://developer.wordpress.org/reference/hooks/pre_user_login/) * Filters a username after it has been sanitized. * Used by [1 function](https://developer.wordpress.org/reference/hooks/pre_user_login/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/pre_user_login/#uses) | Source: [wp-includes/user.php:2258](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/user.php#L2258-L2258) * hook[get_blogs_of_user](https://developer.wordpress.org/reference/hooks/get_blogs_of_user/) * Filters the list of sites a user belongs to. * Used by [1 function](https://developer.wordpress.org/reference/hooks/get_blogs_of_user/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/get_blogs_of_user/#uses) | Source: [wp-includes/user.php:1148](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/user.php#L1148-L1148) * hook[edit_user_{$field}](https://developer.wordpress.org/reference/hooks/edit_user_field/) * Filters a user field value in the ‘edit’ context. * Used by [1 function](https://developer.wordpress.org/reference/hooks/edit_user_field/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/edit_user_field/#uses) | Source: [wp-includes/user.php:1916](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/user.php#L1916-L1916) * function[is_user_member_of_blog()](https://developer.wordpress.org/reference/functions/is_user_member_of_blog/) * Finds out whether a user is a member of a given blog. * Used by [7 functions](https://developer.wordpress.org/reference/functions/is_user_member_of_blog/#used-by) | Uses [6 functions](https://developer.wordpress.org/reference/functions/is_user_member_of_blog/#uses) | Source: [wp-includes/user.php:1162](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/user.php#L1162-L1207) * hook[pre_user_{$field}](https://developer.wordpress.org/reference/hooks/pre_user_field/) * Filters the value of a user field in the ‘db’ context. * Used by [1 function](https://developer.wordpress.org/reference/hooks/pre_user_field/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/pre_user_field/#uses) | Source: [wp-includes/user.php:1940](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/user.php#L1940-L1940) * function[add_user_meta()](https://developer.wordpress.org/reference/functions/add_user_meta/) * Adds meta data to a user. * Used by [2 functions](https://developer.wordpress.org/reference/functions/add_user_meta/#used-by) | Uses [1 function](https://developer.wordpress.org/reference/functions/add_user_meta/#uses) | Source: [wp-includes/user.php:1229](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/user.php#L1229-L1231) * function[delete_user_meta()](https://developer.wordpress.org/reference/functions/delete_user_meta/) * Removes metadata matching criteria from a user. * Used by [4 functions](https://developer.wordpress.org/reference/functions/delete_user_meta/#used-by) | Uses [1 function](https://developer.wordpress.org/reference/functions/delete_user_meta/#uses) | Source: [wp-includes/user.php:1253](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/user.php#L1253-L1255) * function[get_user_meta()](https://developer.wordpress.org/reference/functions/get_user_meta/) * Retrieves user meta field for a user. * Used by [22 functions](https://developer.wordpress.org/reference/functions/get_user_meta/#used-by) | Uses [1 function](https://developer.wordpress.org/reference/functions/get_user_meta/#uses) | Source: [wp-includes/user.php:1281](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/user.php#L1281-L1283) * function[update_user_meta()](https://developer.wordpress.org/reference/functions/update_user_meta/) * Updates user meta field based on user ID. * Used by [38 functions](https://developer.wordpress.org/reference/functions/update_user_meta/#used-by) | Uses [1 function](https://developer.wordpress.org/reference/functions/update_user_meta/#uses) | Source: [wp-includes/user.php:1309](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/user.php#L1309-L1311) * hook[get_user_option_{$option}](https://developer.wordpress.org/reference/hooks/get_user_option_option/) * Filters a specific user option value. * Used by [1 function](https://developer.wordpress.org/reference/hooks/get_user_option_option/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/get_user_option_option/#uses) | Source: [wp-includes/user.php:789](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/user.php#L789-L789) * function[count_users()](https://developer.wordpress.org/reference/functions/count_users/) * Counts number of users who have each of the user roles. * Used by [1 function](https://developer.wordpress.org/reference/functions/count_users/#used-by) | Uses [13 functions](https://developer.wordpress.org/reference/functions/count_users/#uses) | Source: [wp-includes/user.php:1337](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/user.php#L1337-L1447) * function[update_user_option()](https://developer.wordpress.org/reference/functions/update_user_option/) * Updates user option with global blog capability. * Used by [4 functions](https://developer.wordpress.org/reference/functions/update_user_option/#used-by) | Uses [2 functions](https://developer.wordpress.org/reference/functions/update_user_option/#uses) | Source: [wp-includes/user.php:813](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/user.php#L813-L821) * function[setup_userdata()](https://developer.wordpress.org/reference/functions/setup_userdata/) * Sets up global user vars. * Used by [1 function](https://developer.wordpress.org/reference/functions/setup_userdata/#used-by) | Uses [2 functions](https://developer.wordpress.org/reference/functions/setup_userdata/#uses) | Source: [wp-includes/user.php:1614](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/user.php#L1614-L1640) * function[delete_user_option()](https://developer.wordpress.org/reference/functions/delete_user_option/) * Deletes user option with global blog capability. * Used by [1 function](https://developer.wordpress.org/reference/functions/delete_user_option/#used-by) | Uses [2 functions](https://developer.wordpress.org/reference/functions/delete_user_option/#uses) | Source: [wp-includes/user.php:840](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/user.php#L840-L848) * function[wp_dropdown_users()](https://developer.wordpress.org/reference/functions/wp_dropdown_users/) * Creates dropdown HTML content of users. * Used by [2 functions](https://developer.wordpress.org/reference/functions/wp_dropdown_users/#used-by) | Uses [12 functions](https://developer.wordpress.org/reference/functions/wp_dropdown_users/#uses) | Source: [wp-includes/user.php:1719](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/user.php#L1719-L1864) * function[get_users()](https://developer.wordpress.org/reference/functions/get_users/) * Retrieves list of users matching criteria. * Used by [11 functions](https://developer.wordpress.org/reference/functions/get_users/#used-by) | Uses [2 functions](https://developer.wordpress.org/reference/functions/get_users/#uses) | Source: [wp-includes/user.php:874](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/user.php#L874-L882) * hook[wp_dropdown_users](https://developer.wordpress.org/reference/hooks/wp_dropdown_users/) * Filters the wp_dropdown_users() HTML output. * Used by [1 function](https://developer.wordpress.org/reference/hooks/wp_dropdown_users/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/wp_dropdown_users/#uses) | Source: [wp-includes/user.php:1858](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/user.php#L1858-L1858) * function[get_blogs_of_user()](https://developer.wordpress.org/reference/functions/get_blogs_of_user/) * Gets the sites a user belongs to. * Used by [13 functions](https://developer.wordpress.org/reference/functions/get_blogs_of_user/#used-by) | Uses [6 functions](https://developer.wordpress.org/reference/functions/get_blogs_of_user/#uses) | Source: [wp-includes/user.php:1034](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/user.php#L1034-L1149) * function[sanitize_user_field()](https://developer.wordpress.org/reference/functions/sanitize_user_field/) * Sanitizes user field based on context. * Used by [2 functions](https://developer.wordpress.org/reference/functions/sanitize_user_field/#used-by) | Uses [5 functions](https://developer.wordpress.org/reference/functions/sanitize_user_field/#uses) | Source: [wp-includes/user.php:1882](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/user.php#L1882-L1982) * function[count_user_posts()](https://developer.wordpress.org/reference/functions/count_user_posts/) * Gets the number of posts a user has written. * Used by [3 functions](https://developer.wordpress.org/reference/functions/count_user_posts/#used-by) | Uses [6 functions](https://developer.wordpress.org/reference/functions/count_user_posts/#uses) | Source: [wp-includes/user.php:616](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/user.php#L616-L646) * function[wp_signon()](https://developer.wordpress.org/reference/functions/wp_signon/) * Authenticates and logs a user in with ‘remember’ capability. * Used by [0 functions](https://developer.wordpress.org/reference/functions/wp_signon/#used-by) | Uses [10 functions](https://developer.wordpress.org/reference/functions/wp_signon/#uses) | Source: [wp-includes/user.php:41](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/user.php#L41-L141) * hook[get_usernumposts](https://developer.wordpress.org/reference/hooks/get_usernumposts/) * Filters the number of posts a user has written. * Used by [1 function](https://developer.wordpress.org/reference/hooks/get_usernumposts/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/get_usernumposts/#uses) | Source: [wp-includes/user.php:645](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/user.php#L645-L645) * hook[wp_authenticate](https://developer.wordpress.org/reference/hooks/wp_authenticate/) * Fires before the user is authenticated. * Used by [1 function](https://developer.wordpress.org/reference/hooks/wp_authenticate/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/wp_authenticate/#uses) | Source: [wp-includes/user.php:81](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/user.php#L81-L81) * function[count_many_users_posts()](https://developer.wordpress.org/reference/functions/count_many_users_posts/) * Gets the number of posts written by a list of users. * Used by [1 function](https://developer.wordpress.org/reference/functions/count_many_users_posts/#used-by) | Uses [6 functions](https://developer.wordpress.org/reference/functions/count_many_users_posts/#uses) | Source: [wp-includes/user.php:661](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/user.php#L661-L713) * hook[secure_signon_cookie](https://developer.wordpress.org/reference/hooks/secure_signon_cookie/) * Filters whether to use a secure sign-on cookie. * Used by [1 function](https://developer.wordpress.org/reference/hooks/secure_signon_cookie/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/secure_signon_cookie/#uses) | Source: [wp-includes/user.php:102](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/user.php#L102-L102) * function[get_current_user_id()](https://developer.wordpress.org/reference/functions/get_current_user_id/) * Gets the current user’s ID. * Used by [111 functions](https://developer.wordpress.org/reference/functions/get_current_user_id/#used-by) | Uses [1 function](https://developer.wordpress.org/reference/functions/get_current_user_id/#uses) | Source: [wp-includes/user.php:726](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/user.php#L726-L732) * hook[wp_login](https://developer.wordpress.org/reference/hooks/wp_login/) * Fires after the user has successfully logged in. * Used by [1 function](https://developer.wordpress.org/reference/hooks/wp_login/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/wp_login/#uses) | Source: [wp-includes/user.php:138](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/user.php#L138-L138) * function[get_user_option()](https://developer.wordpress.org/reference/functions/get_user_option/) * Retrieves user option that can be either per Site or per Network. * Used by [30 functions](https://developer.wordpress.org/reference/functions/get_user_option/#used-by) | Uses [5 functions](https://developer.wordpress.org/reference/functions/get_user_option/#uses) | Source: [wp-includes/user.php:753](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/user.php#L753-L790) [Previous Page](https://developer.wordpress.org/reference/package/users/page/8/?output_format=md) [1](https://developer.wordpress.org/reference/package/users/?output_format=md) … [7](https://developer.wordpress.org/reference/package/users/page/7/?output_format=md) [8](https://developer.wordpress.org/reference/package/users/page/8/?output_format=md) 9 [10](https://developer.wordpress.org/reference/package/users/page/10/?output_format=md) [Next Page](https://developer.wordpress.org/reference/package/users/page/10/?output_format=md)