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求一段因特网址提取的正则

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Jun 13, 2016 pm 01:16 PM

comhttpltquot

求一段网址提取的正则
从一段字符串中提取网址

$str="www.taobao.com 求一段因特网址提取的正则 http://www.taobao.com"

把上面的网址全部提取出来的正则(只提取网址，不提取图片)
因为我要将提取出来的网址进行处理，所以请用preg_replace函数.

------解决方案--------------------
$str =www.taobao.com http://www.taobao.com
TXT;

echo preg_replace('/(?
print_r($url);

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