get a php variable in java script function [duplicate]

Question

i have this dropdown list and i need to save it's value by javascript but i can't get the name of the php variable (select name ) into the function

drop down list :

   $i=0;
   while($i<$counter)
        {
      $vname=$row['student_id'].'_'.$i;
        echo"
          <td>

            <select name=".$vname.">
  <option value="."0".">Choose one</option>
 <option value="."1".">Add</option>
 <option value="."2".">R</option>
 <option value="."3".">TBR</option>
 <option value="."4".">P</option>
      </select>
   </td>";
       $i++;
            }

java script function :

           <script src="https://code.jquery.com/jquery-1.9.1.min.js"></script>                               
                     <script>
                 $(document).ready(function() {

             var item = window.localStorage.getItem('".$vname."');
              $('select[name=".$vname."]').val(item);

           $('select[name=".$vname."]').change(function() {
                 window.localStorage.setItem('".$vname."', $(this).val());
                 });

               });  
            </script>

I recommend CTRL+A and then DELETE. Do it all over again after reading some tutorials. — Phiter
– Phiter, Commented Mar 18, 2016 at 18:54
Also go and read up about proper use of string concatenation – <option value="."0"."> doesn’t do what you probably think it does. — C3roe
– C3roe, Commented Mar 18, 2016 at 19:09

Adam Buchanan Smith · Accepted Answer · 2016-03-18 18:55:21Z

0

You can do it like this: var vname = "<?php echo $vname; ?>";

Then replace $vname with vname in your javascript functions.

answered Mar 18, 2016 at 18:55

Adam Buchanan Smith

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