pre_user_first_name
Filter Hook: Filters a user’s first name before the user is created or updated.
Source: wp-includes/user.php:2273
Filter Hook: Filters a user’s first name before the user is created or updated.
Source: wp-includes/user.php:2273
Function: Determines whether the given email exists.
Source: wp-includes/user.php:1986
Filter Hook: Filters a user’s last name before the user is created or updated.
Source: wp-includes/user.php:2284
Function: Checks whether a username is valid.
Source: wp-includes/user.php:2015
Filter Hook: Filters a user’s display name before the user is created or updated.
Source: wp-includes/user.php:2314
Function: Inserts a user into the database.
Source: wp-includes/user.php:2096
Filter Hook: Filters the query arguments for the list of users in the dropdown.
Source: wp-includes/user.php:1684
Filter Hook: Filters a user’s description before the user is created or updated.
Source: wp-includes/user.php:2325
Function: Updates a user in the database.
Source: wp-includes/user.php:2537
Filter Hook: Filters the wp_dropdown_users() HTML output.
Source: wp-includes/user.php:1750