How to login using only e-mail?
I know how to log in using your username or e-mail:
function wp_authenticate_username_password_redux( $user, $username, $password ) {
if ( is_email( $username ) ) {
$user_obj = get_user_by_email( $username );
if ( $user_obj ) $username = $user_obj->user_login;
}
return wp_authenticate_username_password( $user, $username, $password );
}
How do I get to log in using only e-mail, prohibit the use of username?