Can i send push notification to opera mobile browser using php mysql ajax like facebook

I am using this code it only word desktop browser and when i still this page, i want to puse remotly to a briwser.

I want to send push notification to opera mobile browser like hiw facebook send. Please help me

Suggest me javascript php mysql code

<script>
function pushNotify() {
    if (!("Notification" in window)) {
        alert("Web browser does not support desktop notification");
    }
    if (Notification.permission !== "granted")
        Notification.requestPermission();
    else {
        $.ajax({
        url : "push-notify.php",
        type: "POST",
        success: function(data, textStatus, jqXHR) {
            // if PHP call returns data process it and show notification
            // if nothing returns then it means no notification available for now
            if ($.trim(data)){
                var data = jQuery.parseJSON(data);
                console.log(data);
                notification = createNotification( data.title,  data.icon,  data.body, data.url);
                setTimeout(function() {
                    notification.close();
                }, 5000);
            }
        },
        error: function(jqXHR, textStatus, errorThrown) {}
        });
    }
};

function createNotification(title, icon, body, url) {
    var notification = new Notification(title, {
        icon: icon,
        body: body,
    });
    notification.onclick = function() {
        window.open(url);
    };
    return notification;
}
</script>