<?php
$text='[qhq]';
$pattern="/(\[qhq\])/e";
$replace='"<pre?style=\"background-color:#ddd\">".strtoupper("\\1")."</pre>"';//這行單引號(hào)去掉不就表示替換的字符串了嗎,為什么要加單引號(hào)?
echo?preg_replace($pattern,$replace,$text);
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