JildertMiedema\LaravelPlupload\Receiver::receiveChunks PHP Method

    public function receiveChunks($name, Closure $handler)
    {
        $result = false;
        if ($this->request->file($name)) {
            $file = $this->request->file($name);
            $chunk = (int) $this->request->get('chunk', false);
            $chunks = (int) $this->request->get('chunks', false);
            $originalName = $this->request->get('name');
            $filePath = $this->getPath() . '/' . $originalName . '.part';
            $this->removeOldData($filePath);
            $this->appendData($filePath, $file);
            if ($chunk == $chunks - 1) {
                $file = new UploadedFile($filePath, $originalName, 'blob', sizeof($filePath), UPLOAD_ERR_OK, true);
                $result = $handler($file);
                @unlink($filePath);
            }
        }
        return $result;
    }