普通的表单登陆怎么修改成php curl模拟表单登陆

    用户名： 
	密码：
	

header('Content-Type:text/html;Charset=utf-8');if ($_POST['loginname'] == 'lee' && $_POST['loginpass'] == '123456') {      header('location:http://bbs.csdn.net');} else {     } 

header('Content-type:text/html;Charset=utf-8');  $user = 'lee';       //登陆用户名   $pass = '123456';    //登陆密码   $post_fields = "loginname={$user}&loginpass={$pass}";$ch = curl_init(); curl_setopt($ch,CURLOPT_URL,'http://localhost/2.php');curl_setopt($ch,CURLOPT_POST,1);curl_setopt($ch,CURLOPT_POSTFIELDS,$post_fields);curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); curl_exec($ch);curl_close($ch);

回复讨论(解决方案)

echo curl_exec($ch);

另外你的2.php是跳转了，并没有返回内容。
改成echo file_get_contnets('location:http://bbs.csdn.net'); 试试

header('location:http://bbs.csdn.net');
形成的 http 头
HTTP/1.1 302 Found
Date: Wed, 26 Feb 2014 09:16:38 GMT
location: http://bbs.csdn.net
Content-Length: 0
Content-Type: text/html;Charset=utf-8

你不跟着跳转吗？
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);

header('location:http://bbs.csdn.net');
形成的 http 头
HTTP/1.1 302 Found
Date: Wed, 26 Feb 2014 09:16:38 GMT
location: http://bbs.csdn.net
Content-Length: 0
Content-Type: text/html;Charset=utf-8

你不跟着跳转吗？
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
谢谢斑竹的帮忙 我改成了这样
1.php

header('Content-type:text/html;Charset=utf-8');  $user = 'lee';       //登陆用户名   $pass = '123456';    //登陆密码   $post_fields = "loginname={$user}&loginpass={$pass}";$ch = curl_init(); curl_setopt($ch,CURLOPT_URL,'http://localhost/2.php');curl_setopt($ch,CURLOPT_POST,1);curl_setopt($ch,CURLOPT_POSTFIELDS,$post_fields);curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt($ch, CURLOPT_FOLLOWLOCATION,true);curl_exec($ch);curl_close($ch);

 header('Content-Type:text/html;Charset=utf-8');if ($_POST['loginname'] == 'lee' && $_POST['loginpass'] == '123456') {     header('location:http://bbs.csdn.net');} else {      }

#1 不是说了吗？
echo curl_exec($ch);
你不输出结果怎么能行？

nbsp;html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

  

  谢谢大家的帮忙