email_exists() │ WP 2.1.0

Checks whether the given email exists.

For more information on this and similar theme functions, check out the Conditional Tags article in the Theme Developer Handbook.

Uses: get_user_by()
Hooks from the function

Return

Int|false. The user ID on success, false on failure.

Usage

email_exists( $email );
$email(string) (required)
The email to check for existence.

Changelog

Since 2.1.0 Introduced.

Code of email_exists() WP 5.9.3

wp-includes/user.php 
function email_exists( $email ) {
	$user = get_user_by( 'email', $email );
	if ( $user ) {
		$user_id = $user->ID;
	} else {
		$user_id = false;
	}

	/**
	 * Filters whether the given email exists.
	 *
	 * @since 5.6.0
	 *
	 * @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 apply_filters( 'email_exists', $user_id, $email );
}

Conditional tags (all)

Other