用PHP的CURL写的一个采集Discuz的例子

以前写ASP的时候,要实现采集功能,那简直就是一个浩浩荡荡的大工程,现在用PHP简单多了,轻轻松松简简单单就能把ASP长篇大论才能实现的功能搞定.
这是我用PHP的CURL写的一个采集Discuz的例子,附带模拟登陆,如果不需要模拟登陆就可以直接用File_Get_Contents来采那会更简单.
<?php
set_time_limit(0);

//cookie保存目录
$cookdir = './cookie.tmp';

//模拟请求数据
Function request($url,$action,$cookdir,$referer){
   $ch = curl_init();
   $options = array(CURLOPT_URL => $url,
       CURLOPT_HEADER => 0,
       CURLOPT_NOBODY => 0,
       CURLOPT_PORT => 80,
       CURLOPT_POST => 1,
       CURLOPT_POSTFIELDS => $action,
       CURLOPT_RETURNTRANSFER => 1,
       CURLOPT_FOLLOWLOCATION => 1,
       CURLOPT_COOKIEJAR => $cookdir,
       CURLOPT_COOKIEFILE => $cookdir,
       CURLOPT_REFERER => $referer
   );
   curl_setopt_array($ch, $options);
   $code = curl_exec($ch);
   curl_close($ch);
   return $code;
}

//获取帖子列表
Function getList($code){
   //<a href="viewthread.php?tid=16&extra=page%3D1">加打塔洗花腳本</a>
   preg_match_all('/<a href=\"viewthread.php\?tid=(\d+)/',$code,$threads);
   return $threads[1];
}

//判断该帖子是否存在
Function isExits($code){
   preg_match('/<p>指定的主题不存在或已被删除或正在被审核，请返回。<\/p>/',$code,$error);
   return isset($error[0])?false:true;
}

//获取帖子标题
Function getTitle($code){
   preg_match('/<h1>[^<\/h1>]*/',$code,$title_tmp);
   $title = $title_tmp[0];
   return $title;
}

//登录论坛/
$url = 'http://www.175club.com/logging.php?action=login';
$action='loginfield=username&username=see7di&password=fjin999&questionid=0&cookietime=315360000&referer=http://bbs.war3.cn/&loginsubmit=提交';
request($url,$action,$cookdir,'');
unset($action,$url);

//获取帖子列表(位于第一页的帖子)
$url = 'http://www.175club.com/forumdisplay.php?fid=5';
$code = request($url,'',$cookdir,'');
$tList = getList($code);

//循环抓取每個帖子內的標題
foreach($tList as $list){
   $url = "http://www.175club.com/viewthread.php?tid={$list}";
   $code = request($url,'',$cookdir,'');
   if(isExits($code)){
       $title = getTitle($code);
       echo "tid:{$list}:",strip_tags($title),"<br>";
   }else{
       echo "tid:{$list}:该帖子不存在!<br>";
   }
}
?>