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关于正则,求好手帮助

WBOY
WBOYOriginal
2016-06-13 12:39:191106browse

关于正则,求高手帮助
如例:
http://bbs.csdn.net/topics/new?forum_id=PHP
http://www.bdyy.cc/detail/?20236.html
http://www.qq.com/html/?20236.html?id=88888

preg_match('/(http:\/\/)(.*)(\/)/',$rrr,$matches);

如何分别正则出:
bbs.csdn.net
www.bdyy.cc
www.qq.com

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