$url = 'http://www.zixue.it/member.php?mod=logging&action=login&loginsubmit=yes&infloat=yes&lssubmit=yes';

// $data = 'fastloginfield=email&username=490433117%40qq.com&password=zx199084&quickforward=yes&handlekey=ls';

$data['fastloginfield'] = 'email';

$data['username'] = '490433117@qq.com';

$data['password'] = 'zx199084';

$data['quickforward'] = 'yes';

$data['handlekey'] = 'ls';

$cookie = 'D:\WWW\day1\curl\cookie.txt';

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, $url);

curl_setopt($ch, CURLOPT_HEADER, 0);

curl_setopt($ch, CURLOPT_POST, 1);

curl_setopt($ch, CURLOPT_POSTFIELDS, $data);

curl_setopt($ch, CURLOPT_RETURNTRANSFER, 0);

curl_setopt($ch, CURLOPT_COOKIEJAR, $cookie);

curl_exec($ch);

$last_url = 'http://www.zixue.it/thread-12785-1-1.html';

$curl = curl_init();

curl_setopt($curl, CURLOPT_URL, $last_url);

curl_setopt($curl, CURLOPT_HEADER, 0);

curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);

curl_setopt($curl, CURLOPT_COOKIEFILE, $cookie);

$content = curl_exec($curl);

$pattern = '/