Auto log in to WP blog

$username="admin";
		$password="admin";
		$url="http://www.myBlog.com/blog/";
		$cookie="cookie.txt";

		$postdata = "log=". $username ."&pwd=". $password ."&wp-submit=Log%20In&redirect_to=". $url ."wp-admin/&testcookie=1";
		$ch = curl_init();
		curl_setopt ($ch, CURLOPT_URL, $url . "wp-login.php");
		curl_setopt ($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
		//curl_setopt ($ch, CURLOPT_USERAGENT, "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.6) Gecko/20070725 Firefox/2.0.0.6");<code></code>
		curl_setopt ($ch, CURLOPT_TIMEOUT, 60);
		curl_setopt ($ch, CURLOPT_FOLLOWLOCATION, 1);
		curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
		curl_setopt ($ch, CURLOPT_COOKIEJAR, $cookie);
		curl_setopt ($ch, CURLOPT_REFERER, $url . "wp-admin/");
		curl_setopt ($ch, CURLOPT_POSTFIELDS, $postdata);
		curl_setopt ($ch, CURLOPT_POST, 1);
		$result = curl_exec ($ch);
		curl_close($ch);
		echo $result;
		//exit;
		// WordPress login ends here
		redirect_page('manage.php');