无法使用uploadify上传文件

Question

我正在尝试使用uplodify然而它说'已完成'然后消失但没有图像进入该文件夹。我已经查看了以前的所有问题，但没有一个修复程序似乎对我有所帮助。这是我的代码。

<script type="text/javascript">
            $(document).ready(function() {
                $('#file_upload').uploadify({
                'swf'  : 'uploadify/uploadify.swf',
                'uploader' : 'uploadify/uploadify.php',
                'cancelImg' : 'uploadify/uploadify-cancel.png',
                'folder'    : '/images',
                'auto'      : true
                });
       });

PHP

<?php
/*
Uploadify
Copyright (c) 2012 Reactive Apps, Ronnie Garcia
Released under the MIT License <http://www.opensource.org/licenses/mit-license.php> 
*/

// Define a destination
$targetFolder = '/images'; // Relative to the root



if (!empty($_FILES)) {
    $tempFile = $_FILES['Filedata']['tmp_name'];
    $targetPath = $_SERVER['DOCUMENT_ROOT'] . $targetFolder;
    $targetFile = rtrim($targetPath,'/') . '/' . $_FILES['Filedata']['name'];

    // Validate the file type
    $fileTypes = array('jpg','jpeg','gif','png'); // File extensions
    $fileParts = pathinfo($_FILES['Filedata']['name']);

    if (in_array($fileParts['extension'],$fileTypes)) {
        move_uploaded_file($tempFile,$targetFile);
        echo '1';
    } else {
        echo 'Invalid file type.';
    }
}
?>