<?php function replace_url ($content) { if (empty($content)) return; //给URL地址加上 <a> 链接 $preg = ‘/(?:http:\/\/)?([\w.]+[\w\/]*\.[\w.]+[\w\/]*\??[\w=\&\+\%]*)/is‘; $content = preg_replace($preg, ‘<a href="http://\1" target="_blank">\1</a>‘, $content); return $content; } echo replace_url(‘百度:http://blog.csdn.net/moqiang02‘); ?>
正则表达式匹配URL——给URL地址加上<a> 链接,布布扣,bubuko.com
原文:http://blog.csdn.net/moqiang02/article/details/25466647