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帮忙写一个正则,替换超连接。多谢

WBOY
WBOYOriginal
2016-06-13 12:38:47770browse

帮忙写一个正则,替换超连接。谢谢!
我想替换超连接中的 http://www.baidu.com 变为 http://google.com/?url=http://www.baidu.com

现在找到一代码可以替换,但是不知道先怎么取出 http://www.baidu.com 然后加上 http://google.com/?url= 然后替换回去,变为 http://google.com/?url=http://www.baidu.com
的效果。

$str = '点击观看棋谱';    echo preg_replace("/(?]*)(?=\>)/i","#", $str); 



能帮写一个替换正则吗! 
替换字符串中所有的超级连接

谢谢了啊

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