采集--文本

<?php

header('content-type:text/html;charset=utf-8');

 set_time_limit(0);

 $url = "http://www.sina.com.cn/";

 $str = file_get_contents($url);

 $wo = '#<div class="click-see-more">.*<ul class="list-a" id="syncad_3" data-sudaclick="blk_top1_finance">#is';

 preg_match($wo,$str,$arr);

 $list = '#<li><a .*>(.*)</a>#isU';

 preg_match_all($list,$arr[0],$data);

 $wod = $data[1];   

 $pdo = new PDO('mysql:host=localhost;dbname=think;charset=utf8','root','root');
 foreach ($wod as $key => $value) {
    $sql = "INSERT INTO word(name) values('$value')";
    $pdo->exec($sql);
 }
 ?>