CURL抓取的网页中，通过相对路径引用了其他页面，如何解决cookie问题？

	header("Content-type:text/html;charset=utf-8");	function request_by_curl($remote_server, $post_string)	{		$ch = curl_init();		curl_setopt($ch, CURLOPT_URL, $remote_server);		curl_setopt($ch, CURLOPT_POSTFIELDS, $post_string);		curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);		curl_setopt($ch, CURLOPT_NOBODY, false);		curl_setopt($ch, CURLOPT_HEADER,true);		curl_setopt($ch, CURLOPT_HTTPHEADER, array());		$data = curl_exec($ch);		curl_close($ch);		return $data;	}	//获取验证码	file_get_contents("http://jysx.scnu.edu.cn/VerifyImg.aspx");	$cookie = $http_response_header[6];	$code = substr($cookie,23,4);	echo $code."<br>";		//post登录	$remote_server = "http://jysx.scnu.edu.cn/login.aspx";	$post_string = 'act=login&type=ajax&name=20102301025&pass=523523&verify='.$code;	echo request_by_curl($remote_server,$post_string);