PHP实现抓取百度搜索结果页面【相关搜索词】并存储到txt文件示例

　　本文实例讲述了PHP实现抓取百度搜索结果页面【相关搜索词】并存储到txt文件。分享给大家供大家参考，具体如下：

　　一、百度搜索关键词【脚本之家】

　　【脚本之家】搜索链接

　　搜索结果部分源代码：

　　<div id=rs><div class=tt>相关搜索</div><table cellpadding=0><tbody><tr><th><a href=/s?wd=%E6%B8%B8%E6%88%8F%E8%84%9A%E6%9C%AC%E4%B8%80%E8%88%AC%E9%83%BD%E5%9C%A8%E5%93%AA%E6%89%BErsf=4562rsp=0f=1oq=%E8%84%9A%E6%9C%AC%E4%B9%8B%E5%AE%B6ie=utf-8rsv_idx=1rsv_pq=c1ff4bdb000208b4rsv_t=a1f2OCsgS6vkkBcxsdqfBfehkXoR65%2FtFlpSI30%2F%2FMmk6jQJEukZbv30XaMrqlang=cnrs_src=0rsv_pq=c1ff4bdb000208b4rsv_t=a1f2OCsgS6vkkBcxsdqfBfehkXoR65%2FtFlpSI30%2F%2FMmk6jQJEukZbv30XaM rel=external nofollow >游戏脚本一般都在哪找</a></th><td></td><th><a href=/s?wd=%E8%84%9A%E6%9C%AC%E6%80%8E%E4%B9%88%E5%86%99rsf=4562rsp=1f=1oq=%E8%84%9A%E6%9C%AC%E4%B9%8B%E5%AE%B6ie=utf-8rsv_idx=1rsv_pq=c1ff4bdb000208b4rsv_t=a1f2OCsgS6vkkBcxsdqfBfehkXoR65%2FtFlpSI30%2F%2FMmk6jQJEukZbv30XaMrqlang=cnrs_src=0rsv_pq=c1ff4bdb000208b4rsv_t=a1f2OCsgS6vkkBcxsdqfBfehkXoR65%2FtFlpSI30%2F%2FMmk6jQJEukZbv30XaM rel=external nofollow >脚本怎么写</a></th><td></td><th><a href=/s?wd=%E8%84%9A%E6%9C%AC%E6%98%AF%E4%BB%80%E4%B9%88%E6%84%8F%E6%80%9Drsf=4562rsp=2f=1oq=%E8%84%9A%E6%9C%AC%E4%B9%8B%E5%AE%B6ie=utf-8rsv_idx=1rsv_pq=c1ff4bdb000208b4rsv_t=a1f2OCsgS6vkkBcxsdqfBfehkXoR65%2FtFlpSI30%2F%2FMmk6jQJEukZbv30XaMrqlang=cnrs_src=0rsv_pq=c1ff4bdb000208b4rsv_t=a1f2OCsgS6vkkBcxsdqfBfehkXoR65%2FtFlpSI30%2F%2FMmk6jQJEukZbv30XaM rel=external nofollow >脚本是什么意思</a></th></tr><tr><th><a href=/s?wd=%E8%84%9A%E6%9C%AC%E4%B9%8B%E5%AE%B6apprsf=4562rsp=3f=1oq=%E8%84%9A%E6%9C%AC%E4%B9%8B%E5%AE%B6ie=utf-8rsv_idx=1rsv_pq=c1ff4bdb000208b4rsv_t=a1f2OCsgS6vkkBcxsdqfBfehkXoR65%2FtFlpSI30%2F%2FMmk6jQJEukZbv30XaMrqlang=cnrs_src=0rsv_pq=c1ff4bdb000208b4rsv_t=a1f2OCsgS6vkkBcxsdqfBfehkXoR65%2FtFlpSI30%2F%2FMmk6jQJEukZbv30XaM rel=external nofollow >脚本之家app</a></th><td></td><th><a href=/s?wd=%E6%89%8B%E6%9C%BA%E8%84%9A%E6%9C%AC%E5%88%B6%E4%BD%9Crsf=4562rsp=4f=1oq=%E8%84%9A%E6%9C%AC%E4%B9%8B%E5%AE%B6ie=utf-8rsv_idx=1rsv_pq=c1ff4bdb000208b4rsv_t=a1f2OCsgS6vkkBcxsdqfBfehkXoR65%2FtFlpSI30%2F%2FMmk6jQJEukZbv30XaMrqlang=cnrs_src=0rsv_pq=c1ff4bdb000208b4rsv_t=a1f2OCsgS6vkkBcxsdqfBfehkXoR65%2FtFlpSI30%2F%2FMmk6jQJEukZbv30XaM rel=external nofollow >手机脚本制作</a></th><td></td><th><a href=/s?wd=%E6%89%8B%E6%9C%BA%E8%84%9A%E6%9C%AC%E5%A4%A7%E5%85%A8rsf=4562rsp=5f=1oq=%E8%84%9A%E6%9C%AC%E4%B9%8B%E5%AE%B6ie=utf-8rsv_idx=1rsv_pq=c1ff4bdb000208b4rsv_t=a1f2OCsgS6vkkBcxsdqfBfehkXoR65%2FtFlpSI30%2F%2FMmk6jQJEukZbv30XaMrqlang=cnrs_src=0rsv_pq=c1ff4bdb000208b4rsv_t=a1f2OCsgS6vkkBcxsdqfBfehkXoR65%2FtFlpSI30%2F%2FMmk6jQJEukZbv30XaM rel=external nofollow >手机脚本大全</a></th></tr><tr><th><a href=/s?wd=%E8%84%9A%E6%9C%AC%E6%B8%B8%E6%88%8F%E5%88%B6%E4%BD%9C%E5%A4%A7%E5%B8%88rsf=4562rsp=6f=1oq=%E8%84%9A%E6%9C%AC%E4%B9%8B%E5%AE%B6ie=utf-8rsv_idx=1rsv_pq=c1ff4bdb000208b4rsv_t=a1f2OCsgS6vkkBcxsdqfBfehkXoR65%2FtFlpSI30%2F%2FMmk6jQJEukZbv30XaMrqlang=cnrs_src=0rsv_pq=c1ff4bdb000208b4rsv_t=a1f2OCsgS6vkkBcxsdqfBfehkXoR65%2FtFlpSI30%2F%2FMmk6jQJEukZbv30XaM rel=external nofollow >脚本游戏制作大师</a></th><td></td><th><a href=/s?wd=%E6%B8%B8%E6%88%8F%E8%84%9A%E6%9C%AC%E5%88%B6%E4%BD%9C%E6%95%99%E7%A8%8Brsf=4562rsp=7f=1oq=%E8%84%9A%E6%9C%AC%E4%B9%8B%E5%AE%B6ie=utf-8rsv_idx=1rsv_pq=c1ff4bdb000208b4rsv_t=a1f2OCsgS6vkkBcxsdqfBfehkXoR65%2FtFlpSI30%2F%2FMmk6jQJEukZbv30XaMrqlang=cnrs_src=0rsv_pq=c1ff4bdb000208b4rsv_t=a1f2OCsgS6vkkBcxsdqfBfehkXoR65%2FtFlpSI30%2F%2FMmk6jQJEukZbv30XaM rel=external nofollow >游戏脚本制作教程</a></th><td></td><th><a href=/s?wd=%E8%84%9A%E6%9C%AC%E7%B2%BE%E7%81%B5rsf=4562rsp=8f=1oq=%E8%84%9A%E6%9C%AC%E4%B9%8B%E5%AE%B6ie=utf-8rsv_idx=1rsv_pq=c1ff4bdb000208b4rsv_t=a1f2OCsgS6vkkBcxsdqfBfehkXoR65%2FtFlpSI30%2F%2FMmk6jQJEukZbv30XaMrqlang=cnrs_src=0rsv_pq=c1ff4bdb000208b4rsv_t=a1f2OCsgS6vkkBcxsdqfBfehkXoR65%2FtFlpSI30%2F%2FMmk6jQJEukZbv30XaM rel=external nofollow >脚本精灵</a></th></tr></tbody></table></div>

　　二、抓取并保存本地

　　源代码

　　index.php：

　　 <form action=index.php method=post> <input name=q type=text /> <input type=submit value=Get Keywords /> </form> <?php header(Content-Type:text/html;charset=gbk); class ComBaike{ private $o_String=NULL; public function __construct(){ include(cls.StringEx.php); $this->o_String=new StringEx(); } public function getItem($word){ $url = 构造包头，模拟浏览器请求 $header = array ( Host:请求 Connection: keep-alive, Referer:输出结果echo $content; $this->o_String->string=$content; $s_begin=<div id=rs>; $s_end=</div>; $summary=$this->o_String->getPart($s_begin,$s_end); $s_begin=<div class=tt>相关搜索</div><table cellpadding=0><tr><th>; $s_end=</th></tr></table></div>; $content=$this->o_String->getPart($s_begin,$s_end); return $content; } public function __destruct(){ unset($this->o_String); } } if($_POST){ $com = new ComBaike(); $q = $_POST[q]; $str = $com->getItem($q); //获取搜索内容 $pat = /<a(.*?)href=(.*?) rel=external nofollow (.*?)>(.*?)<\/a>/i; preg_match_all($pat, $str, $m); //print_r($m[4]); 链接文字 $con = implode(,, $m[4]); //生成文件夹 $dates = date(Ymd); $path=./Search/.$dates./; if(!is_dir($path)){ mkdir($path,0777,true); } //生成文件 $file = fopen($path.iconv(UTF-8,GBK,$q)..txt,w); if(fwrite($file,$con)){ echo $con; echo <script>alert(success)</script>; }else{ echo <script>alert(error)</script>; } fclose($file); } ?>

　　cls.StringEx.php：

　　 <?php header(Content-Type: text/html; charset=UTF-8); class StringEx{ public $string=; public function __construct($string=){ $this->string=$string; } public function pregGetPart($s_begin,$s_end){ $s_begin==preg_quote($s_begin); $s_begin=str_replace(/,\/,$s_begin); $s_end=preg_quote($s_end); $s_end=str_replace(/,\/,$s_end); $pattern=/.$s_begin.(.*?).$s_end./; $result=preg_match($pattern,$this->string,$a_match); if(!$result){ return $result; }else{ return isset($a_match[1])?$a_match[1]:; } } public function strstrGetPart($s_begin,$s_end){ $string=strstr($this->string,$s_begin); $string=strstr($string,$s_end,true); $string=str_replace($s_begin,,$string); $string=str_replace($s_end,,$string); return $string; } public function getPart($s_begin,$s_end){ $result=$this->pregGetPart($s_begin,$s_end); if(!$result){ $result=$this->strstrGetPart($s_begin,$s_end); } return $result; } } ?>

　　更多关于PHP相关内容感兴趣的读者可查看本站专题：《php curl用法总结》、《PHP网络编程技巧总结》、《PHP数组(Array)操作技巧大全》、《php字符串(string)用法总结》、《PHP数据结构与算法教程》及《PHP中json格式数据操作技巧汇总》

　　希望本文所述对大家PHP程序设计有所帮助。