使用curl打造简易百度搜索

 1 <div style="width:200px;height:100px;">
 2     <div>百度搜索</div>
 3     <form action="" method="get">
 4         <input type="text" name="key">
 5         <input type="submit" value="搜索">
 6     </form>
 7 </div>
 8 <?php
 9 $k = '';
10 $k = !empty($_GET['key'])?$_GET['key']:'';
11 session_start();
12 $_SESSION['key'] = $k;
13 
14 $curl = curl_init(); 
15 // 设置你需要抓取的URL 
16 
17 for($i = 0;$i<2;$i++){
18 curl_setopt($curl, CURLOPT_URL, "http://www.baidu.com/s?wd={$_SESSION['key']}&pn={$i}"); 
19 // 设置header 
20 curl_setopt($curl, CURLOPT_HEADER, 1); 
21 // 设置cURL 参数，要求结果保存到字符串中还是输出到屏幕上。 
22 curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1); 
23 // 运行cURL，请求网页 
24 $data = curl_exec($curl); 
25 
26 $pre = '/<h3 class="t"><a.*?href = "(.*?)".*?target="_blank".*?>(.*?)</a></h3>/s';
27 preg_match_all($pre,$data,$match);
28 
29 foreach ($match[1] as $k => $v) {
30 ?>    
31 <div style="font-size:20px;color:red;">
32     <a href="<?php echo $v;?>" target="_blank"><?php echo strip_tags($match[2][$k]);?></a>
33 </div>
34 <?php
35 }
36 }
37 
38 curl_close($curl);
39 
40 
41 ?>