PHP实现通过URL提取根域名
PHP实现通过URL提取根域名
内容导读
收集整理的这篇技术教程文章主要介绍了PHP实现通过URL提取根域名，小编现在分享给大家，供广大互联网技能从业者学习和参考。文章包含2453字，纯文字阅读大概需要4分钟。
内容图文
本文给大家分享的是个人在做项目的时候遇到的，需要通过php实现从URL中提取根域名的代码以及实现思路，有需要的小伙伴可以参考下PHP根据URL提取根域名，个人工作中用到，由于网络上很多代码都不能得到正确结果就自己写了一个，欢迎大家使用并提出其中的bug.
<?php #使用示例echo getBaseDomain('http://blog.jp.goo.ne.jp/index.php')->domain;echo "n";echo getBaseDomain('http://51.ca/index.php')->domain;echo "n";echo getBaseDomain('http://blog.ab.cc.win.aisa.hk/index.php')->domain;echo "n";
function getBaseDomain($url=''){
if(!$url){
return $url;
}
#列举域名中固定元素
$state_domain = array(
'al','dz','af','ar','ae','aw','om','az','eg','et','ie','ee','ad','ao','ai','ag','at','au','mo','bb','pg','bs','pk','py','ps','bh','pa','br','by','bm','bg','mp','bj','be','is','pr','ba','pl','bo','bz','bw','bt','bf','bi','bv','kp','gq','dk','de','tl','tp','tg','dm','do','ru','ec','er','fr','fo','pf','gf','tf','va','ph','fj','fi','cv','fk','gm','cg','cd','co','cr','gg','gd','gl','ge','cu','gp','gu','gy','kz','ht','kr','nl','an','hm','hn','ki','dj','kg','gn','gw','ca','gh','ga','kh','cz','zw','cm','qa','ky','km','ci','kw','cc','hr','ke','ck','lv','ls','la','lb','lt','lr','ly','li','re','lu','rw','ro','mg','im','mv','mt','mw','my','ml','mk','mh','mq','yt','mu','mr','us','um','as','vi','mn','ms','bd','pe','fm','mm','md','ma','mc','mz','mx','nr','np','ni','ne','ng','nu','no','nf','na','za','aq','gs','eu','pw','pn','pt','jp','se','ch','sv','ws','yu','sl','sn','cy','sc','sa','cx','st','sh','kn','lc','sm','pm','vc','lk','sk','si','sj','sz','sd','sr','sb','so','tj','tw','th','tz','to','tc','tt','tn','tv','tr','tm','tk','wf','vu','gt','ve','bn','ug','ua','uy','uz','es','eh','gr','hk','sg','nc','nz','hu','sy','jm','am','ac','ye','iq','ir','il','it','in','id','uk','vg','io','jo','vn','zm','je','td','gi','cl','cf','cn','yr','com','arpa','edu','gov','int','mil','net','org','biz','info','pro','name','museum','coop','aero','xxx','idv','me','mobi','asia','ax','bl','bq','cat','cw','gb','jobs','mf','rs','su','sx','tel','travel'
);
if(!preg_match("/^http/is", $url)){
$url="http://".$url;
}
$res = null;
$res->domain = null;
$res->host = null;
$url_parse = parse_url(strtolower($url));
$urlarr = explode(".", $url_parse['host']);
$count = count($urlarr);
if($count <= 2){
#当域名直接根形式不存在host部分直接输出
$res->domain = $url_parse['host'];
}elseif($count > 2){
$last = array_pop($urlarr);
$last_1 = array_pop($urlarr);
$last_2 = array_pop($urlarr);
$res->domain = $last_1.'.'.$last;
$res->host = $last_2;
if(in_array($last, $state_domain)){
$res->domain=$last_1.'.'.$last;
$res->host=implode('.', $urlarr);
}
if(in_array($last_1, $state_domain)){
$res->domain = $last_2.'.'.$last_1.'.'.$last;
$res->host = implode('.', $urlarr);
}
#print_r(get_defined_vars());die;
}
return $res;
}以上就是本文的全部内容，希望对大家的学习有所帮助，更多相关内容请关注PHP中文网！
相关推荐：
如何编程实现php追加内容到txt文件中的方法
关于PHP模板引擎Smarty内建函数section和sectionelse的用法
以上就是PHP实现通过URL提取根域名的详细内容，更多请关注Gxl网其它相关文章！
内容总结
以上是为您收集整理的PHP实现通过URL提取根域名全部内容，希望文章能够帮你解决PHP实现通过URL提取根域名所遇到的程序开发问题。 如果觉得技术教程内容还不错，欢迎将网站推荐给程序员好友。
内容备注
版权声明：本文内容由互联网用户自发贡献，该文观点与技术仅代表作者本人。本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容， 请发送邮件至 举报，一经查实，本站将立刻删除。
