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php如何提取域名的根部分

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Release： 2016-06-13 10:59:31
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php怎么提取域名的根部分
怎么提取域名的根部分 比如 ww1.baidu.com dy.baidu.com  a.www.baidu.com  提取baidu.com这部分
------最佳解决方案--------------------
用.切数组，然后逆向foreach，一旦某一个点不是已知的顶级域名或者国家域名，则是你所谓的根部分
------其他解决方案--------------------
$url = 'http://dy.baidu.com';
print_r(parse_url($url));

打印出来的数组里有你想要的数据。

Related labels：
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