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

<?php<br /><br /><br />        $url="http://60.219.165.24/loginAction.do";<br />        $ch = curl_init();<br />        curl_setopt($ch, CURLOPT_URL, $url);<br />        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);<br />	curl_setopt($ch, CURLOPT_HEADER, 0); <br />	curl_setopt($ch, CURLOPT_POST, 1);<br />	$curlPost="postdata";<br />	curl_setopt($ch, CURLOPT_POSTFIELDS, $curlPost); <br /><br />        curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);<br /><br />         curl_setopt($ch, CURLOPT_UNRESTRICTED_AUTH, 1);<br /><br />         $output = curl_exec($ch);<br />         curl_close($ch);<br />$home_url = 'http://60.219.165.24/gradeLnAllAction.do?type=ln&oper=fainfo&fajhh=2615';<br />	  header('Location: '.$home_url);<br /><br /><br />?><br />

传入了正确的登陆名称和密码之后却无法访问下一页面。提示“会话超时".

抓包如上图

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------解决方案--------------------
还有，你保持会话状态了么？curl会自动帮你传递cookie？