curl_模仿session登录

<?php
header("content-type:text/html;charset="utf-8"");
$post_url="http://localhost/session/action.php";
$post_data="user=hkui&pwd=123";
session_start(); 
$strCookie="PHPSESSID=".$_COOKIE["PHPSESSID"]; 
session_write_close(); 
$ch=curl_init();
curl_setopt($ch,CURLOPT_URL,$post_url);
curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);
curl_setopt($ch,CURLOPT_POST,1);
curl_setopt($ch, CURLOPT_COOKIE, $strCookie);
curl_setopt($ch,CURLOPT_POSTFIELDS,$post_data);
$con=curl_exec($ch);
curl_close($ch);
 
echo $strCookie;
echo "<hr/>";
 
 
$url="http://localhost/session/main.php";
$ch=curl_init(); 
 
 
session_write_close(); 
curl_setopt($ch, CURLOPT_COOKIE, $strCookie);
curl_setopt($ch,CURLOPT_URL,$url);
curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);
$con=curl_exec($ch);
curl_close($ch);
 
echo $con;
$href=$_SERVER["PHP_SELF"];
//print_r($_SESSION);
/*
echo <<<EEE
<script type="text/javascript">
window.location.href="{$href}";
</script>
EEE;
*/
?>