php - I am not able to show session variables as parameters in iframe Drupal 7 -


i trying values session variables while passing parameters iframe not able value saved in session mail variable .i using drupal 7 iframe module. here code.....

      <iframe id="if1" width="100%" height="254" style="visibility:visible"       src="http://www.w3schools.com/?mail=<?php echo $_session['mail']; ?>" >       </iframe>


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