How can I set a session var using javascript and get it via php code

Question

I have a javascript code like this :

<script type="text/javascript">

    $('#editRole').on('show.bs.modal', function (e) {  

        $roleID =  $(e.relatedTarget).attr('data-id');
        // Here I want to set this $roleID in session may be like this :
        Session['roleID'] = $roleID;                      
    });    

</script>

Then I want to get that $roleID in an other place using php code, may be like this :

<?php $roleID = Session::get('roleID'); //do something ....  ?>

Thanks

Answer 1

You can't set a server session variable directly from JS.

To do that you can make an AJAX call to a PHP script passing the value you want to set, and set it server side:

$('#editRole').on('show.bs.modal', function (e) {  

    $roleID =  $(e.relatedTarget).attr('data-id');

    //ajax call 
    $.ajax({
         url: "set_session.php",
         data: { role: $roleID }
    });                             
}); 

set_session.php

//preliminary code

Session::put('roleID', $request->input('role') );