PHP模拟登陆网站出现对话超时

PHP模拟登陆网站出现会话超时

        $url="http://60.219.165.24/loginAction.do";

        $ch = curl_init();

        curl_setopt($ch, CURLOPT_URL, $url);

        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

	curl_setopt($ch, CURLOPT_HEADER, 0); 

	curl_setopt($ch, CURLOPT_POST, 1);

	$curlPost="postdata";

	curl_setopt($ch, CURLOPT_POSTFIELDS, $curlPost); 


        curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);


         curl_setopt($ch, CURLOPT_UNRESTRICTED_AUTH, 1);


         $output = curl_exec($ch);

         curl_close($ch);

$home_url = 'http://60.219.165.24/gradeLnAllAction.do?type=ln&oper=fainfo&fajhh=2615';

	  header('Location: '.$home_url);



?>