场景：tags关键字有4个分类,分别为 站长百科、网站运营、行业资讯、IDC资讯四个分类,如图,

每个分类下又有很多tags关键字，当点击某一个tags时,会显示当前tags所在分类下的其他所有或指定数量的tags关键词。可使用如下代码,

先获取该tags所在的父分类id,

1. <?php
2. $tagid = (int)$_GET['tagid'];
3. ?>
4. [e:loop={"select * from [!db.pre!]enewstags WHERE `tagid` = $tagid order by num desc limit 10",0,24,0}]
5. <?
6. $cid = $bqr['cid'];
7. ?>
8. [/e:loop]

获取父分类下的所有tags关键字,这里随机显示20个

1. [e:loop={"select * from [!db.pre!]enewstags WHERE `cid` = $cid order by RAND() LIMIT 20",0,24,0}]
2. <a href="<?=$public_r[newsurl]?>e/tags/?tagid=<?=$bqr['tagid']?>" target="_blank"><?=$bqr['tagname']?></a>
3. [/e:loop]