帝国CMS按分类输出所有TAG标签，具体操作如下：在网站根目录新建一个tag.php文件，加入以下代码即可（样式自行修改）
tag.php Code：
<!-- TAG查询代码开始 -->
<?php
require('./e/class/connect.php'); //引入数据库配置文件和公共函数文件
require('./e/class/db_sql.php'); //引入数据库操作文件
require('./e/data/dbcache/class.php'); //引入栏目缓存文件
$link=db_connect(); //连接MYSQL
$empire=new mysqlquery(); //声明数据库操作类
//获得TAG分类
$tagclass_sql=$empire->query('select classid,classname from '.$dbtbpre.'enewstagsclass order by classid asc');
while($tagclass_r=$empire->fetch($tagclass_sql)){
echo '<div class="tagbqn clearfix"><h3>'.$tagclass_r['classname'].'</h3>'.PHP_EOL;
/*按分类输出所有已分类TAG*/
$tag_sql=$empire->query('select tagname from '.$dbtbpre.'enewstags where cid='.$tagclass_r['classid'].' order by tagid desc');
while($tag_r=$empire->fetch($tag_sql)){
$tagslink=$public_r['newsurl'].'tags-'.urlencode($tag_r['tagname']).'-0.html';//TAG标签链接
$tag_all.='<a href="'.$tagslink.'" title="'.$tag_r['tagname'].'">'.$tag_r['tagname'].'</a>';
}
echo $tag_all.PHP_EOL.'</div>'.PHP_EOL;
}
/*其他TAG标签*/
echo '<div class="tagbqn clearfix"><h3>未分类标签</h3>'.PHP_EOL;
/*按分类输出所有TAG*/
$tag_sql=$empire->query('select tagname from '.$dbtbpre.'enewstags where cid=0 order by tagid desc');
while($tag_r=$empire->fetch($tag_sql)){
$tagslink=$public_r['newsurl'].'tags-'.urlencode($tag_r['tagname']).'-0.html';//TAG标签链接
$tag_other.='<a href="'.$tagslink.'" title="'.$tag_r['tagname'].'">'.$tag_r['tagname'].'</a>';
}
echo $tag_other.PHP_EOL.'</div>'.PHP_EOL;
db_close(); //关闭MYSQL链接
$empire=null; //注消操作类变量
?>
<!-- TAG查询代码结束 -->以上只是实例代码。更多技巧请自行拓展。
