Home Backend Development PHP Tutorial 如何跨站抓取别的站点的页面的补充_php基础

如何跨站抓取别的站点的页面的补充_php基础

May 17, 2016 am 09:45 AM

在实际的应用中,经常会遇到一些特殊的情况,比如需要新闻,天气预报,等等,但是作为个人站点或者实力小的站点 我们不可能有那么多的人力 物力 财力去做这些事情,怎么办呢?  
好在互联网是 资源共享的,我们可以利用程序 自动的把别的站点的页面抓取回来经过处理后被我们所利用。
  用什么呢,那个战友给的是不行的,其实在Php有这个功能,那就是用curl库。请看下面的代码!  

$ch = curl_init ("http://dailynews.sina.com.cn");
$fp = fopen ("php_homepage.txt", "w");

curl_setopt ($ch, CURLOPT_FILE, $fp);
curl_setopt ($ch, CURLOPT_HEADER, 0);

curl_exec ($ch);
curl_close ($ch);
fclose ($fp);
?>

  但有时会出现一些错误,但实际上已经下载完了!我问了老外,他们没有给我一个答复,我想实在不行,就在函数前面加个◎;这样我们只要对$txt进行适当的分析后,我们就可以偷偷的抓取sina的新闻!不过,还是不用的为好!以免发生法律纠纷,这里只是想告诉你Php的功能非常的强大!你可以做许多事情!  

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