Login with email (WP Modal Login)

I’m using this simple action, and it works like a charm. 🙂

<?php
/** Plugin Name: (#111223) User Login with Mail Address */
    add_action( 'wp_authenticate', 'wpse111223_login_with_email_address' );
function wpse111223_login_with_email_address( $username ) {
    $user = get_user_by_email( $username );
    if ( ! empty( $user->user_login ) )
        $username = $user->user_login;

    return $username;
}

It hooks to wp_authenticate and enables email login to the WordPress Authentication system, so it should work with any plugin. I use it successfully with Login with Ajax plugin.

🙂

Later-edit: For those who don’t know where to put the snippet of code, it should go in your theme’s functions.php or a custom plugin.