Question

Is there any way to pass a javascript variable to a php function or simply assign a js variable to a php variable….???

test(“asdas”); I need to update “asdas” to a dynamic value, i.e of the form,

Answer 1

You can pass value from js to PHP using ajax request or add js value to URL and then reload page.

Variant #1 (using ajax):

JS side (jquery)

var js_var = 'hello';
$.ajax({
   type: "POST",
   url: "some.php",
   data: "js_var="+js_var,
   success: function(msg){
     alert( "Data Saved: " + msg );
   }
 });

PHP side

$js_var = isset($_POST[‘js_var’]) ? $_POST[‘js_var’] : ”;

Variant #2 (with page reload):

JS side

<script type="text/javascript">
<!--
var js_var = 'hello';
window.location = "http://www.yoursite.com/?js_var="+js_var;
//-->
</script>

PHP side

$js_var = isset($_GET[‘js_var’]) ? $_GET[‘js_var’] : ”;