PHP递归实现层级树状展开

本文实例为大家分享了PHP递归实现层级树状展开的主要代码,供大家参考,具体内容如下 效果图: 实现代码: <?php $db = mysql_connect('localhost', 'root', 'root') or die('Can\'t connect to database'); mysql_select_db('test') or die('Can\'t find database : test'); $result = mysql_query('select id, fid, name from tree'); while($arr = mysql_fetch_arr