Symfony 2 - Basic Image Upload

upload.php

$file = $_FILES['fileinput'];
$this->SF2imageUpload($file['name'],$file['type'],$file['size'],$file['error'],$file['tmp_name'],$upload_directory);




public function SF2imageUpload($file, $file_type, $file_size, $file_error, $temp, $upload_url)
    {
        //Kabul edilen uzantılar.
        $allowed_extensions = array("gif", "jpeg", "jpg", "png");

        //Kabul edilen imaj tipleri.
        $allowed_images = array("image/jpeg", "image/jpg", "image/gif", "image/png");

        //Dosya uzantisini al.
        $file_name = explode(".", $file);
        $file_ext  = end($file_name);

        //Dosya tipi kontrolü.
        if(in_array($file_ext, $allowed_extensions) && in_array($file_type, $allowed_images) && $file_size < 20000)
        {
            if($file_error > 0)
            {
                throw $this->createNotFoundException('Hata Kodu: '.$file_error);
            }
            elseif(file_exists($upload_url.$file))
            {
                throw $this->createNotFoundException('Bu isimde resim zaten mevcut.');
            }
            else
            {
                move_uploaded_file($temp,$upload_url.$file);
            }

        }
        else
        {
            throw $this->createNotFoundException('Geçersiz dosya.');
        }
    }