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Asked: 2026-06-11T20:38:59+00:00

Ok , so what I’m trying to do is trigger PHP code, only when

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Ok , so what I’m trying to do is trigger PHP code, only when the if condition is true (in javascript) , I understand that php is server side, and javascript is client side. The include of the php code works perfect except 1 thing , it gets triggered on page load actually , not when the if condition happens. If you can help me how to do this will be rly appreciated. I want the php file to be included ONLY when the if condition is true

thanks in advance

here’s the code am using :

<html>
    <script src="//cdnjs.cloudflare.com/ajax/libs/visibility.js/0.5/visibility.min.js"></script>
    <script src="//ajax.googleapis.com/ajax/libs/jquery/1.8.0/jquery.min.js" type="text/javascript"></script>
<script>
var seconds=20;
var flag=false;


$(document).ready(function(){
if (!flag)
Visibility.every(1000, tick);



function tick()
{
      display();

        if (seconds>0)
        {
         seconds--;
        }
        else
        {
          if (!flag){
          document.getElementById('more').innerHTML +="<?php include_once('Code.php'); 
          ?>";
          document.getElementById('more').style.visibility='visible';
          flag=true;
          }
        }
}
function display()
{
   $("#timer").html(seconds);
}
});
</script>
<div id="TrafficHeader" style="height:100px; background-color:grey; padding:20px;">
<div id="timer"></div>
<div id="more" style="visibility: hidden;"><a href="http://www.double-it.com/Traffic/index.php">View Next Ad</a></div></div>
<iframe id="myframe" src="<?php echo ''.$URL;?>" height="100%" width="100%" frameborder="0">
</iframe>
</body>
</html>
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1 Answer

  1. Editorial Team

    This is not possible, at least not the way you are going about it.
    The reason is that the if condition is evaluated on the client machine long after the server finish evaluating your php script.

    First server has to finish procesing your php script, then imagine it has to pack it and then send the whole package to the client, which then unpacks it and renders the html and evaluates the javascript in html, or asks for external files like images, css or other script files.

    If you are trying to include some extra javascript ,than you can add extra script tag in the head programatically. If you want to do something on the server, you can call a script on a server just as easily.

    Here is how you can exeecute that script from javascript only if the if is true:

    ...
if (!flag){
    xmlHttp = new XMLHttpRequest();
    xmlHttp.open( "GET", "http://link/to/your/code.php?and=special&parameters=sent", false );
    xmlHttp.send( null );

    document.getElementById('more').innerHTML += xmlHttp.responseText;
    document.getElementById('more').style.visibility='visible';
    flag=true;
    }
...
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