pre_user_login │ filter-hook │ WP 2.0.3

Filters a username after it has been sanitized.

This filter is called before the user is created or updated.

Usage

add_filter( 'pre_user_login', 'wp_kama_pre_user_login_filter' );

/**
 * Function for `pre_user_login` filter-hook.
 * 
 * @param string $sanitized_user_login Username after it has been sanitized.
 *
 * @return string
 */
function wp_kama_pre_user_login_filter( $sanitized_user_login ){

	// filter...
	return $sanitized_user_login;
}

$sanitized_user_login(string)

Username after it has been sanitized.

Changelog

Where the hook is called

$pre_user_login = apply_filters( 'pre_user_login', $sanitized_user_login );

$new_user_login = apply_filters( 'pre_user_login', sanitize_user( wp_unslash( $_REQUEST['user_login'] ), true ) );

Where the hook is used in WordPress