基于PHP CURL获取邮箱地址的详解

CURL可谓居家旅行必备之杀人良药，为何如此形容？就是因为他好用方便能实现页面抓取模拟登录采集等一系列功能。
记得第一次接触CURL的时候是要实现完成从邮箱用户列表的抓取。当时为了赶进度没有细细研究只是网上找了一些资料实现了功能。现在把当初的代码整理一下功能依旧能用

复制代码 代码如下:

  error_reporting ( 0 );
  set_time_limit ( 0 );
  header ( "Content-Type: text/html; charset=GB2312" );

  //邮箱用户名密码
  $user = 'username';
  $pass = 'password';

  //创建一个文件用于存放cookie信息
  define ( "COOKIEJAR", tempnam ( ini_get ( "upload_tmp_dir" ), "cookie" ) );

  $url = 'http://reg.163.com/logins.jsp?type=1&url=http://entry.mail.163.com/coremail/fcg/ntesdoor2?lightweight%3D1%26verifycookie%3D1%26language%3D-1%26style%3D-1';
  $refer = 'http://mail.163.com';
  $fields_post = array ('username' => $user, 'password' => $pass, 'verifycookie' => 1, 'style' => - 1, 'product' => 'mail163', 'selType' => - 1, 'secure' => 'on' );
  $fields_string = http_build_query ( $fields_post, '&' );
  $headers_login = array ('User-Agent' => 'Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-CN; rv:1.9) Gecko/2008052906 Firefox/3.0', 'Referer' => 'http://www.163.com' );

  //登录
  $ch = curl_init ( $url );
  curl_setopt ( $ch, CURLOPT_RETURNTRANSFER, true );
  curl_setopt ( $ch, CURLOPT_HEADER, true );
  curl_setopt ( $ch, CURLOPT_CONNECTTIMEOUT, 120 );
  curl_setopt ( $ch, CURLOPT_POST, true );
  curl_setopt ( $ch, CURLOPT_REFERER, $refer );
  curl_setopt ( $ch, CURLOPT_COOKIESESSION, true );
  curl_setopt ( $ch, CURLOPT_COOKIEJAR, COOKIEJAR );
  curl_setopt ( $ch, CURLOPT_HTTPHEADER, $headers_login );
  curl_setopt ( $ch, CURLOPT_POST, count ( $fields ) );
  curl_setopt ( $ch, CURLOPT_POSTFIELDS, $fields_string );
  $result = curl_exec ( $ch );
  curl_close ( $ch );

  //跳转
  $url = 'http://entry.mail.163.com/coremail/fcg/ntesdoor2?lightweight=1&verifycookie=1&language=-1&style=-1&username=loki_wuxi';
  $headers = array ('User-Agent' => 'Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-CN; rv:1.9) Gecko/2008052906 Firefox/3.0' );

  $ch = curl_init ( $url );
  curl_setopt ( $ch, CURLOPT_RETURNTRANSFER, true );
  curl_setopt ( $ch, CURLOPT_HEADER, true );
  curl_setopt ( $ch, CURLOPT_CONNECTTIMEOUT, 120 );
 curl_setopt ( $ch, CURLOPT_POST, true );
  curl_setopt ( $ch, CURLOPT_HTTPHEADER, $headers );
  curl_setopt ( $ch, CURLOPT_COOKIEFILE, COOKIEJAR );
  curl_setopt ( $ch, CURLOPT_COOKIEJAR, COOKIEJAR );
  $result = curl_exec ( $ch );
  curl_close ( $ch );

 //取得sid
  preg_match ( '/sid=[^\"].*/', $result, $location );
  $sid = substr ( $location [0], 4, - 1 );

  //通讯录地址
  $url = 'http://g4a30.mail.163.com/jy3/address/addrlist.jsp?sid=' . $sid . '&gid=all';
  $headers = array ('User-Agent' => 'Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-CN; rv:1.9) Gecko/2008052906 Firefox/3.0' );

  $ch = curl_init ( $url );
  curl_setopt ( $ch, CURLOPT_RETURNTRANSFER, true );
  curl_setopt ( $ch, CURLOPT_HEADER, true );
  curl_setopt ( $ch, CURLOPT_CONNECTTIMEOUT, 120 );
  curl_setopt ( $ch, CURLOPT_POST, true );
  curl_setopt ( $ch, CURLOPT_HTTPHEADER, $headers );
  curl_setopt ( $ch, CURLOPT_COOKIEFILE, COOKIEJAR );
  curl_setopt ( $ch, CURLOPT_COOKIEJAR, COOKIEJAR );
  $result = curl_exec ( $ch );
  curl_close ( $ch );
  unlink ( COOKIEJAR );

  //开始抓取内容
  preg_match_all ( '/

]*>(.*?) ]*>(.*?)/i', $result, $infos, PREG_SET_ORDER );
  //1：姓名2：邮箱
  print_r ( $infos );
  ?>

建立一个PHP文件复制以上代码保存后效果立竿见影，记得更改邮箱账户和密码，账户不需要@后缀。CURL初体验，如何，还不错吧。
后来在CSDN上又看到别人发帖问一个获取快递查询的问题，他想把一些大的快递公司查询业务做在一个页面中，的确是个很不错的实用小工具，但是因为快递查询有验证码，不由的又让我想起了CURL利器。后来帮帖主实现功能，思路很简单，先用CURL模拟抓取验证码，然后显示到用户提交页面中，同时保存验证码的COOKIE等用户查询一起提交就保证了COOKIE的同步。

源代码如下：
-getEms.html

复制代码 代码如下: