plupload上传目录目标目录创建

我正在使用带代码点火器的Plupload。

我的问题是我无法在服务器上创建新文件夹[我想这将是问题所在]。

控制器来了。。。

    function do_upload()
    {
                    //$targetDir = ini_get("upload_tmp_dir") . DIRECTORY_SEPARATOR . "plupload";

                    $current_user = $_REQUEST['userDEMO'];
                    $c_pagename = $_REQUEST['c_page'];


                    $targetDir = "/home/username/public_html/developer/uploads/".$current_user."/";

            //$cleanupTargetDir = false; // Remove old files
            //$maxFileAge = 60 * 60; // Temp file age in seconds
            // 5 minutes execution time
            @set_time_limit(5 * 60);
            // Uncomment this one to fake upload time
            // usleep(5000);
            // Get parameters
            $chunk = isset($_REQUEST["chunk"]) ? $_REQUEST["chunk"] : 0;
            $chunks = isset($_REQUEST["chunks"]) ? $_REQUEST["chunks"] : 0;
            $fileName = isset($_REQUEST["name"]) ? $_REQUEST["name"] : '';
            // Clean the fileName for security reasons
            $fileName = preg_replace('/[^'w'._]+/', '', $fileName);
            // Make sure the fileName is unique but only if chunking is disabled
            if ($chunks < 2 && file_exists($targetDir . DIRECTORY_SEPARATOR . $fileName))
                {
                    $ext = strrpos($fileName, '.');
                    $fileName_a = substr($fileName, 0, $ext);
                    $fileName_b = substr($fileName, $ext);
                    $count = 1;
                    while (file_exists($targetDir . DIRECTORY_SEPARATOR . $fileName_a . '_' . $count . $fileName_b))
                            $count++;
                    $fileName = $fileName_a . '_' . $count . $fileName_b;
                }
            // Create target dir
            if (!file_exists($targetDir))
            {
                 @mkdir($targetDir,0755,true);
            }

            if (isset($_SERVER["HTTP_CONTENT_TYPE"]))
                    $contentType = $_SERVER["HTTP_CONTENT_TYPE"];
            if (isset($_SERVER["CONTENT_TYPE"]))
                    $contentType = $_SERVER["CONTENT_TYPE"];
            // Handle non multipart uploads older WebKit versions didn't support multipart in HTML5
            if (strpos($contentType, "multipart") !== false)
                {
                    if (isset($_FILES['file']['tmp_name']) && is_uploaded_file($_FILES['file']['tmp_name'])) {
  // Open temp file
  $out = fopen($targetDir . DIRECTORY_SEPARATOR . $fileName, $chunk == 0 ? "wb" : "ab");
  if ($out)
                    {
   // Read binary input stream and append it to temp file
   $in = fopen($_FILES['file']['tmp_name'], "rb");
   if ($in) {
    while ($buff = fread($in, 4096))
     fwrite($out, $buff);
   } else
    die('{"jsonrpc" : "2.0", "error" : {"code": 101, "message": "Failed to open input stream."}, "id" : "id"}');
   fclose($in);
   fclose($out);
   @unlink($_FILES['file']['tmp_name']);
         }
                    else
              die('{"jsonrpc" : "2.0", "error" : {"code": 102, "message": "Failed to open output stream."}, "id" : "id"}');
                        }
                    else
                     die('{"jsonrpc" : "2.0", "error" : {"code": 103, "message": "Failed to move uploaded file."}, "id" : "id"}');
                 }
             else
                 {
                // Open temp file
                $out = fopen($targetDir . DIRECTORY_SEPARATOR . $fileName, $chunk == 0 ? "wb" : "ab");
                if ($out)
                    {
                        // Read binary input stream and append it to temp file
                        $in = fopen("php://input", "rb");
                        if ($in) {
                                while ($buff = fread($in, 4096))
                                        fwrite($out, $buff);
                        } else
                                die('{"jsonrpc" : "2.0", "error" : {"code": 101, "message": "Failed to open input stream."}, "id" : "id"}');
                        fclose($in);
                        fclose($out);
                    }
                        else
                         die('{"jsonrpc" : "2.0", "error" : {"code": 102, "message": "Failed to open output stream."}, "id" : "id"}');
                }
                // Return JSON-RPC response
                die('{"jsonrpc" : "2.0", "result" : null, "id" : "id"}');
             }

我不知道是什么问题，它一直在上传[没有进度条或任何东西]

希望问题出现在

$targetDir = "/home/username/public_html/developer/user/".$current_user."/"."pages/pageName/images/";

这里是

// Create target dir
            if (!file_exists($targetDir))
            {
                 @mkdir($targetDir,0755,true);
            }

编辑：目录结构：

--Public_html
  -- Codeignitor_installation_files [default_one_for_showing_coming_soon_page_etc]
  -- Developer [0755]
     -- Codeignitor_default_files
     -- User [0777]
        -- Username1 [0777]
           -- Pages [0777]
              -- PageName1 [0777]
                 -- Images [0777]
                    -- img1.jpg   
              -- PageName2
        -- Username2

我想将文件上传到Images文件夹

编辑：

如果我通过浏览器访问了我的控制器函数，它可以在我的服务器上创建一个文件夹，但它不适用于PLUPLOAD，我更正了PLUPRAD中的URL设置，但没有办法。。。。

至少有什么方法可以调试吗？我目前在flash运行时。。。所以当我点击"上传文件"