Passing Javascript var to PHP without redirection

[binaryWeapon]

I'm pretty sure this is possible with AJAX.

Also, please respond to this, even if its just a link to a tut. This would solve a lot of problems for me!

How do I pass a javascript variable to PHP WITHOUT REDIRECTION

Is there an AJAX solution?

ty!

~binaryWeapon

[Fumigator]

That's exactly what AJAX is, an HTTP Request sent to the server via Javascript without the browser reloading the page. Google ajax +tutorial to learn the basics.

[binaryWeapon]

Oh ... so thats what its for .... ;-)

function callback(serverData, serverStatus) {       // Called automatically when we get data back from server
   alert(serverData);                               // Display an alert box with the recieved data
}

function ajaxRequest() {
   var AJAX = null;                                 // Initialize the AJAX variable.
   if (window.XMLHttpRequest) {                     // Does this browser have an XMLHttpRequest object?
      AJAX=new XMLHttpRequest();                    // Yes -- initialize it.
   } else {                                         // No, try to initialize it IE style
      AJAX=new ActiveXObject("Microsoft.XMLHTTP");  //  Wheee, ActiveX, how do we format c: again?
   }                                                // End setup Ajax.
   if (AJAX==null) {                                // If we couldn't initialize Ajax...
      alert("Your browser doesn't support AJAX.");  // Sorry msg.                                               
      return false                                  // Return false, couldn't set up ajax
   }
   AJAX.onreadystatechange = function() {                      // When the browser has the request info..
      if (AJAX.readyState==4 || AJAX.readyState=="complete") { //  see if the complete flag is set.
         callback(AJAX.responseText, AJAX.status);             // Pass the response to our processing function
      }                                                        // End Ajax readystate check.
   }
   var url='http://somedomain.com/getdata.php'; // This is the URL we will call.
   AJAX.open("GET", url, true);                                  // Open the url this object was set-up with.
   AJAX.send(myVariable);                                              // Send the request.
}

Here's what I've found (on a tutorial). Would this work? And what PHP would I need?

[Inigoesdr]

Yeah, just add the variables to the URL.

var url = 'http://somedomain.com/getdata.php?variable=1&variable2=2';

And you would access them in your PHP page by using the $_GET superglobal array:

PHP Code:

$var = $_GET['variable'];
$var2 = $_GET['variable2']; 


[binaryWeapon]

OK so where it says

   AJAX.send(myVariable);

I can just send null? (That's what it had in the tutorial, I just changed it 'cause I thought that's what would send the var.)

So it would be

   AJAX.send(null);

[Inigoesdr]

Yes, I believe you can. Why don't you try it and find out for yourself?

[binaryWeapon]

willdo! thx for ur help!