Assign Jquery array to php session array?

Question

i have a little confusion while assigning a jquery array to php array, i have multiple checkboxes on a page, i want to assign its value on their click event, i retrieve values perfectly, but fails to assign to php array, here is my code during testing, finally i want it to assign to php session after working:

function updateSession() {         
     var allVals = [];
             <?php $ids = array()?>
     $('#c_b :checked').each(function() {
       allVals.push($(this).val());
       <?php $ids ?> = allVals;
     });
     // i am testing here in alert!
              alert(<?=$ids?>);
  }
 $(function() {
   $('#c_b input').click(updateSession);
   updateSession();
 });

};

Many thanx in advance!

Answer 1

You can't do this. PHP executes on the server before your Java Script runs. You can use PHP to build dynamic JavaScript, but you can't update PHP variables from JavaScript directly... To pass values from JavaScript to the server you can do it via AJAX or query string