Download large file via cURL in Koseven

// Pass URL file
$request = new Request('download_url');

// e.g. write into temporary file
$temp = fopen('php://temp', 'w');

/**
 * Parameters must pass by client() only !

 * @var $client Request_Client_External
 */
$client = $request->client();
$client->options(CURLOPT_RETURNTRANSFER, 1); // Before CURLOPT_FILE !
$client->options(CURLOPT_FILE, $temp);

// Optional
$client->options(CURLOPT_TIMEOUT, Date::MINUTE * 2);

$request->execute();

// ...

fclose($temp);