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如何用正则截取域名中间的部分

WBOY
WBOYOriginal
2016-06-13 13:27:011249browse

怎么用正则截取域名中间的部分
比如 www.baidu.com abc.baidu.com www.baidu.com.cn 后缀有很多种 要求能都截取中间的 baidu

------解决方案--------------------

PHP code
$s = 'www.baidu.com abc.baidu.com www.baidu.com.cn';
preg_match_all('/(\w+)\.com/i', $s, $r);
print_r($r); <div class="clear">
                 
              
              
        
            </div>
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