Plupload::OnMultiFileUpload PHP Method

    public static function OnMultiFileUpload($p_path)
    {
        // HTTP headers for no cache etc
        header('Content-type: text/plain; charset=UTF-8');
        header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
        header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
        header("Cache-Control: no-store, no-cache, must-revalidate");
        header("Cache-Control: post-check=0, pre-check=0", false);
        header("Pragma: no-cache");
        // Settings
        $targetDir = $p_path;
        $cleanupTargetDir = false;
        $maxFileAge = 60 * 60;
        // 5 minutes execution time
        @set_time_limit(5 * 60);
        // 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\\._]+/', '', $fileName);
        // Create target dir
        if (!file_exists($targetDir)) {
            @mkdir($targetDir);
        }
        // Remove old temp files
        if (is_dir($targetDir) && ($dir = opendir($targetDir))) {
            while (($file = readdir($dir)) !== false) {
                $filePath = $targetDir . DIR_SEP . $file;
                // Remove temp files if they are older than the max age
                if (preg_match('/\\.tmp$/', $file) && filemtime($filePath) < time() - $maxFileAge) {
                    @unlink($filePath);
                }
            }
            closedir($dir);
        } else {
            die('{"jsonrpc" : "2.0", "error" : {"code": 100, "message": "Failed to open temp directory."}, "id" : "id"}');
        }
        // Look for the content type header
        if (isset($_SERVER["HTTP_CONTENT_TYPE"])) {
            $contentType = $_SERVER["HTTP_CONTENT_TYPE"];
        }
        if (isset($_SERVER["CONTENT_TYPE"])) {
            $contentType = $_SERVER["CONTENT_TYPE"];
        }
        if (strpos($contentType, "multipart") !== false) {
            if (isset($_FILES['file']['tmp_name']) && is_uploaded_file($_FILES['file']['tmp_name'])) {
                // Open temp file
                $out = fopen($targetDir . DIR_SEP . $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, $buff);
                        }
                    } else {
                        die('{"jsonrpc" : "2.0", "error" : {"code": 101, "message": "Failed to open input stream."}, "id" : "id"}');
                    }
                    fclose($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 . DIR_SEP . $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, $buff);
                    }
                } else {
                    die('{"jsonrpc" : "2.0", "error" : {"code": 101, "message": "Failed to open input stream."}, "id" : "id"}');
                }
                fclose($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"}');
    }

 /**
  * @return Action_Helper_Plupload
  */
 public function init()
 {
     $request = $this->getRequest();
     if ($request->getParam('plupload', false)) {
         Plupload::OnMultiFileUpload(CS_TMP_TPL_DIR);
     }
     return $this;
 }