email_exists │ filter-hook │ WP 5.6.0

Filters whether the given email exists.

Usage

add_filter( 'email_exists', 'wp_kama_email_exists_filter', 10, 2 );

/**
 * Function for `email_exists` filter-hook.
 * 
 * @param int|false $user_id The user ID associated with the email, or false if the email does not exist.
 * @param string    $email   The email to check for existence.
 *
 * @return int|false
 */
function wp_kama_email_exists_filter( $user_id, $email ){

	// filter...
	return $user_id;
}

$user_id(int|false)

The user ID associated with the email, or false if the email does not exist.

$email(string)

The email to check for existence.

Changelog

Where the hook is called

return apply_filters( 'email_exists', $user_id, $email );

Where the hook is used in WordPress