Payload error while using PHP to update live tiles windows phone 8

Question

I'm having problems updating my live tiles using PHP via Push Notifications. For normal Toast Message there wasn't any error. But when I tried using the same coding, and change the phone target as well as the notification class. I got a payload error. Here's my source code, and wondering if I did something wrong.

Thanks!

<?php
   if( isset($_POST['push_action']) && $_POST['push_action'] == "1") {
   $tileMessage = "<?xml version=\"1.0\" encoding=\"utf-8\"?>" .
                "<wp:Notification xmlns:wp=\"WPNotification\">" .
                   "<wp:Tile>" .
                    "<wp:BackgroundImage>" . $_POST["push_msg0"] . 
"</wp:BackgroundImage>" +
                    "<wp:Count>" . $_POST["push_msg1"] . "</wp:Count>" +
                    "<wp:Title>" . $_POST["push_msg2"] . "</wp:Title>" +
                    "<wp:BackBackgroundImage>" . $_POST["push_msg3"] . "</wp:BackBackgroundImage>" +
                    "<wp:BackTitle>" . $_POST["push_msg4"] . "</wp:BackTitle>" +
                    "<wp:BackContent>" . $_POST["push_msg5"] . "</wp:BackContent>" +
                 "</wp:Tile> " .
              "</wp:Notification>";



    // Create request to send
    $r = curl_init();
    curl_setopt($r, CURLOPT_URL, $_POST["push_uri"]);
    curl_setopt($r, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($r, CURLOPT_POST, true);
    curl_setopt($ch, CURLOPT_HEADER, true); 

    // add headers
    $httpHeaders=array('Content-type: text/xml; charset=utf-8', 'X-WindowsPhone-Target: token',
                    'Accept: application/*', 'X-NotificationClass: 1','Content-Length:'.strlen($tileMessage));
    curl_setopt($r, CURLOPT_HTTPHEADER, $httpHeaders);

    // add message
    curl_setopt($r, CURLOPT_POSTFIELDS, $tileMessage);

    // execute request
    $output = curl_exec($r);
    curl_close($r);
}
  ?>  

<form method="post" action="push2.php">
<h3>Push through php</h3>
<input type="text" name="push_uri" id="push_uri" placeholder="Push Uri" style="width:50%;padding:5px;" autofocus required/> <br><br>
<input type="text" name="push_msg0" id="push_msg0" placeholder="Background Image"  style="width:50%;padding:5px;" required/> <br><br>
<input type="text" name="push_msg1" id="push_msg1" placeholder="Count"  style="width:50%;padding:5px;" required/> <br><br>
<input type="text" name="push_msg2" id="push_msg2" placeholder="Title"  style="width:50%;padding:5px;" required/> <br><br>
<input type="text" name="push_msg3" id="push_msg3" placeholder="Back Background Image"  style="width:50%;padding:5px;" required/> <br><br>
<input type="text" name="push_msg4" id="push_msg4" placeholder="Back Title"  style="width:50%;padding:5px;" required/> <br><br>
<input type="text" name="push_msg5" id="push_msg5" placeholder="Back Content"  style="width:50%;padding:5px;" required/> <br><br>
<input type="hidden" name="push_action" value="1" />


<input type="submit" value="Push" style="width:50%;padding:5px;"/>

Answer 1

Apparently I missed out the Version=2.0, Tile ID & Tile template that caused it not to work. Here's the updated for those 2 lines, after that I was able to update the tiles via push notifications.

"<wp:Notification xmlns:wp=\"WPNotification\" Version=\"2.0\">"
"<wp:Tile Id=\"/MainPage.xaml?Name=flip\" Template=\"FlipTile\">"