How do you input a javascript variable into php function using ajax?

Question

What am I doing wrong here?? Everything works fine and there are no errors in the console but there are also no console logs saying it succeeded

index file with script:

    <script type="text/javascript">

       function upVote(picNum)
          {

              var pictureNumber = parseInt($("#" + picNum).attr("id"));


              $.ajax({
                 url: "upload/pics/changeVote.php",
                 data: {"picNum":pictureNumber},
                 type:'post',
                 dataType:'json',
                 success: function(output_string){
                    PictureNumber = output_string['picturenumber'];
                    alert(PictureNumber);
                }
              });
              var currentVote = parseInt($("#" + picNum).attr("value"));  
              alert("pictureNumber is " + pictureNumber + "and currentVote is " + currentVote); //here to help me, no functionality

              $newVote = currentVote + 1;

              alert($newVote); //here to help me
          }
   </script>

/upload/pics/changeVote.php

<?php

   $picNum = $_POST['picNum'];
function otherFileFunc($pic){
  $final = $pic + 1;
  return $final;
}
$outputnumber = function($picNum);
$array = ('picturenumber' => $outputnumber);
echo json_encode($array);

?>

Companjo · Accepted Answer · 2014-04-04 03:02:26Z

2

Mistake in /upload/pics/changeVote.php

$outputnumber = function($picNum);

has to be:

$outputnumber = otherFileFunc($picNum);

you can't use function(), you should use the function name instead.

answered Apr 4, 2014 at 3:02

Companjo

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