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PHP获取远程网站标题及简介说明

时间:2021-07-01 10:21:17 帮助过:4人阅读

本帖最后由 mingniu66 于 2013-11-20 16:32:18 编辑

header("Content-Type:text/html;charset=utf-8");
$url = 'http://cm100.net/';

//获取远程网页的编码
function _charset($url){
$text = file_get_contents($url);
$mode = '/charset=(.*)\"/iU';
preg_match($mode,$text,$result);
return $result[1];
}
$charset = _charset($url);//获取远程网页的编码
//以上为公用


//1:获取远程网页的标题,$url地址,$charset用于判断编码
function _title($url,$charset){
$text = file_get_contents($url);

//如果是gb2312编码处理乱码
if ($charset == 'gb2312'){
$text = iconv('gb2312','utf-8',$text);
}

$mode = '/(.*)<\/title>/iU'; <br /> preg_match($mode,$text,$result); <br /> return $result[1]; <br /> } <br /> echo '网站标题:'.$title = _title($url,$charset); //获取远程网页的标题 <br /> <br /> <br /> <br /> //2:获取远程网页的简介 <br /> function _description($url,$charset){ <br /> $text = file_get_contents($url); <br /> <br /> //gb2312编码乱码处理 <br /> if ($charset == 'gb2312'){ <br /> $text = iconv('gb2312','utf-8',$text); <br /> } <br /> <br /> $mode = '/<meta\s+name=\"description\"\s+content=\"(.*)\"\s?\/?>/iU'; <br /> preg_match($mode,$text,$result); <br /> return $result[1]; <br /> <br /> } <br /> echo '网站简介:'.$description = _description($url,$charset); //获取远程网页的简介 <br /> ?> <br /> <br /> 初学PHP,想要获取远程网站的标题及简介,网上查了好几天写出来的结果,勉强能达到想要的结果,获取速度有点慢,感觉代码很乱,不知道有没有更好的方法, </p> <br /> <h2>回复讨论(解决方案)</h2> <p class="sougouAnswer"> 你可以合成一个函数啊,那就应该很快了。 </p> <p class="sougouAnswer"> 你这分析一个页面要获取多少次阿得 </p> <p class="sougouAnswer"> http://blog.csdn.net/jdgdf566/article/details/13632111 </p> <p class="sougouAnswer"> 你看你每个函数里都用file_get_contents。当然慢啦。 <br /> 应该只有1个函数用来file_get_contents获取内容,然后将内容传给每个函数来匹配结果! </p> <p class="sougouAnswer"> 谢谢大家的回答 正好4人40分 回答都一样 确实file_get_contents整了多次 因为初学 改起来可能费劲 </div> <div class=""> <ul class="m-news-opt fix"> <li class="opt-item"> <a href='/PHPjiqiao-146209.html' target='_blank'><p>< 上一篇</p><p class="ellipsis">mysql分组查询统计</p></a> </li> <li class="opt-item ta-r"> <a href='/PHPjiqiao-146211.html' target='_blank'><p>下一篇 ></p><p class="ellipsis">win764位WAMP环境下(PHP5.3)redis扩展无法生效</p></a> </li> </ul> </div> </div> </div> <div class="g-title fix"> <h2 class="title-txt">人气教程排行</h2> </div> <div class="m-rank u-dashed mb40"> <ul> <li class="rank-item"> <a href="/PHPjiqiao-379253.html" title='php如何获取跳转前的url' class="item-name ellipsis" target="_blank"> <span class="g-art-count fr">174次</span> <span class="g-sort-num top">1</span> php如何获取跳转前的url </a> </li> <li class="rank-item"> <a href="/PHPjiqiao-379019.html" title='php格林威治时间转换成当前时间的方法' class="item-name ellipsis" target="_blank"> <span class="g-art-count fr">174次</span> <span class="g-sort-num second">2</span> php格林威治时间转换成当前时间的方法 </a> </li> <li class="rank-item"> <a href="/PHPjiqiao-366629.html" title='为什么php不能做大型系统?' class="item-name ellipsis" target="_blank"> <span class="g-art-count fr">174次</span> <span class="g-sort-num third">3</span> 为什么php不能做大型系统? 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