如何使用ajax輸入一個javascript變量到php函數中？

Question

我在這裏做錯了什麼？一切正常，並有在控制檯中沒有錯誤，但也有沒有控制檯日誌說它成功與腳本

索引文件：

<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); 

?> 

Answer 1

誤區/upload/pics/changeVote.php

$outputnumber = function($picNum); 

必須是：

$outputnumber = otherFileFunc($picNum); 

你不能使用function()，你應該使用函數名代替。