<?php
    // update new message to table
    $data['chatid'] = $to_id; // use a unique random string
    // broadcast using pusher notication
    $pusher->trigger('__subscribed_channel__', '__chat_session__', $data);
?>

<!-- for user notification -->
<script type="text/javascript">
    // Enable pusher logging - don't include this in production
    Pusher.log = function(message) {
        if (window.console && window.console.log) {
            window.console.log(message);
        }
    };

    var pusher = new Pusher('__app_secret__');
    var channel = pusher.subscribe('__subscribed_channel__');
    channel.bind('gsm_chat', function(data) {
        var element = document.getElementById("new_msg");
        if (data.chatid == '<?= $_SESSION['user']['chatid']; ?>') {
        element.innerHTML = data.message;
        } else {
        element.innerHTML = '<a href="messaging.php"><div class="no_msg"></div></a>';
        }
    });
</script>