email_exists( string $email )

Checks whether the given email exists.

Parameters

$email

(Required) Email.

Return

(int|false) The user's ID on success, and false on failure.

Source

File: wp-includes/user.php 

function email_exists( $email ) {
	if ( $user = get_user_by( 'email', $email) ) {
		return $user->ID;
	}
	return false;
}

Expand Source Code View on GitHub

Related

Uses

Uses
Uses Description
wp-includes/pluggable.php: get_user_by()

Retrieve user info by a given field

Used By

Used By
Used By Description
wp-includes/rest-api/endpoints/class-wp-rest-users-controller.php: WP_REST_Users_Controller::update_item()

Updates a single user.
wp-includes/user.php: register_new_user()

Handles registering a new user.
wp-includes/user.php: wp_insert_user()

Insert a user into the database.
wp-includes/ms-functions.php: wpmu_validate_user_signup()

Sanitize and validate data required for a user sign-up.
wp-admin/includes/user.php: edit_user()

Edit user settings based on contents of $_POST

Changelog

Changelog
Version Description
WP-2.1.0 Introduced.