<?php

/*

* 类似QQ聊天时候，有某些关键字可以为他添加上超链接

*/

$string = "aabbcc";


$patterns = array("/a/","/b/","/c/");


$replacements = array_pad(array(),count($patterns),"<a href='#'>$0</a>");


print preg_replace($patterns, $replacements, $string, 1);


?>