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Asked: 2026-05-13T16:35:46+00:00

I need some ajax code to assign value to a session for example $_SESSION[‘verif_code’]

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I need some ajax code to assign value to a session

for example

$_SESSION[‘verif_code’]

i am generating a random number to assign value to this session

i need some ajax code to refresh this random number function and assign value to this session.

does any one have an idea please share it with me

Thanks

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1 Answer

  1. Editorial Team

    You would have to replace all commented out sections with your own code, but here is a generalized template for AJAX requests.

    Inside of your HTML/PHP file, where the AJAX will take affect.

    <html>
<body>
<input type="submit" onclick="generateCaptcha()">
<div id="captcha">Your captcha div</div>
</body>
</html>

    Your Javascript code to call the AJAX request.

    var xmlhttp;

function generateCaptcha()   {
xmlhttp=GetXmlHttpObject();
if (xmlhttp==null) {
  alert ("Browser does not support HTTP Request");
  return;
  }
var url="yourfile.php"; // file to send the AJAX request too, see below
xmlhttp.onreadystatechange=stateChanged;
xmlhttp.open("GET",url,true);
xmlhttp.send(null);
}

function stateChanged()  {
if (xmlhttp.readyState==4) { // success.
   // generate your new captcha
 }
}

function GetXmlHttpObject() {
if (window.XMLHttpRequest) {
  // code for IE7+, Firefox, Chrome, Opera, Safari
  return new XMLHttpRequest();
  }
if (window.ActiveXObject) {
  // code for IE6, IE5
  return new ActiveXObject("Microsoft.XMLHTTP");
  }
return null;
}

    Your PHP file inside of the AJAX call, named yourfile.php will process the data returned and will do whatever data manipulation is needed back to your div element without a page refresh.

    Take an overview of AJAX Tutorial before you jump into things.

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