CURL Fonksiyonu ile arası iyi olan var mı ?

<?php
$ch = curl_init();
curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($ch, CURLOPT_URL, 'http://digg.com/login/prepare/digg');
curl_setopt($ch, CURLOPT_REFERER, "http://digg.com/login");
curl_setopt($ch, CURLOPT_VERBOSE, 1);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0); 
curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)');
$digguname = "username";
$diggpass = "pass";
$cookie = "cookie.txt";
$gonderi = "username=".$digguname."&password=".$diggpass.""; //Postumuzu ayarlıyoruz
curl_setopt ($ch, CURLOPT_POST, 1);
curl_setopt ($ch, CURLOPT_POSTFIELDS, $gonderi); //Postumuzu gönderiyoruz
curl_setopt($ch, CURLOPT_COOKIEJAR, $cookie);
curl_setopt($ch, CURLOPT_COOKIEFILE, $cookie);
$login = curl_exec ($ch);
echo "$login"; //Gelen kodlari ekrana bastiralim. Görelim login olmuşmu.
?>