WordPress Version: 4.6
/**
* Retrieve user info by email.
*
* @since 2.5.0
* @deprecated 3.3.0 Use get_user_by()
* @see get_user_by()
*
* @param string $email User's email address
* @return bool|object False on failure, User DB row object
*/
function get_user_by_email($email)
{
_deprecated_function(__FUNCTION__, '3.3.0', "get_user_by('email')");
return get_user_by('email', $email);
}