Sharing link of a page

I am sharing link of an event from profile of user, the page of event is dynamic, When user click on share to Facebook, I get ID of event and store it to Session variable, and I am using this session variable in events page to describe the: og tags. But my: og tags are not showing the data. Here is my Code:

    function post(id) {
        document.cookie = "eventID = "+id;
        <?php $_SESSION['EVENT_ID'] = $_COOKIE['eventID']; ?>;
        FB.ui({
               method: 'share',
               href: "mywebsiteURL/events.php"
           }
     }
//Here is the head of my events.php
    $col = 'events.*,status.name as statusName,mosque_reg.name as mosque';
    $table = "events,status,mosque_reg";
    $where = "events.id = '".$obj->verifyint($_SESSION['EVENT_ID'])."' AND events.status_id = status.id 
    AND events.inserted_by = mosque_reg.inserted_by"; 
    $ticket = $obj->read_specific_event($col,$table,$where);
    if($ticket->num_rows>0)
    {
     $issue = $ticket->fetch_assoc();
     $pic ="https://www.theglobalmuslim.com/mosque/portal/images/events/".$issue['photo'];
     $contactName = $issue['contactPerson'];
     $contact = $issue['contactNumber'];
     $description = $issue['description'];
     $topic = $issue['topic'];
  }
  ?>
   <meta property="fb:app_id" content="258374655358948" />
   <meta property="og:site_name" content="The Global Muslim"/>
   <link property="og:url"           content="https://www.theglobalmuslim.com/events.php?id=<?php echo 
   $_SESSION['EVENT_ID']; ?>"/>
   <meta property="og:type"          content="website" />
   <meta property="og:title"         content="Event Name:<?php echo $topic; ?>" />
   <meta property="og:description"   content="New event is held at Mosque <?php echo 
   $issue['mosque']."n."." Description: ".$description ?>" />
   <meta property="og:image"         content="<?php echo $pic; ?>" />

Answer

I solved the problem by opening the URL of page inside and their i used GET method to display event information in :og tags.