PHP SMARTY 双循环(递归)输出分类 有关问题

PHP SMARTY 双循环(递归)输出分类 问题
模版

PHP code

<!--Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->{foreach from=$classlist item=newsclass}    <div class="bg03"><a href="news.php?classid=%7B%24newsclass.id%7D&%7Bif%20%24newsclass.ispro%20eq%201%7Dispro=true%7B/if%7D" target="main">{$newsclass.classname}</a></div>{/foreach}

程序

PHP code

<!--Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->$sql = "select * from jh_newsclass where parentid = 0";$result = $mysqli->query($sql);while ($row = $result->fetch_row()) {    $classlist[] = array(        'id'=>$row[0],        'classname'=>$row[2],        'parentid'=>$row[1],        'ispro'=>$row[3],            );}$result->close();$mysqli->close();$smarty->assign('classlist',$classlist);$smarty->assign('webname',Webname);$smarty->display('admin/left.htm');

这样只能输出一级分类. 我需要在一级分类下再输出二级..三级..该怎么写呀? 


以前用ASP输出的效果

HTML code

<!--Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->              <div class="bg03">新闻专题</div><div class="forumlist_groups"><div align="left"><ul>
<li class="forumli"><a href="news.asp?classid=3&newsclass=3" target="main">+--<img  id="folder180" src="images/leaf.gif"    style="max-width:90%"  style="max-width:90%" align="absmiddle" alt="PHP SMARTY 双循环(递归)输出分类 有关问题" ><font color="">新闻动态</font></a></li>
<li class="forumli"><a href="news.asp?classid=6&newsclass=6" target="main">+--<img  id="folder180" src="images/leaf.gif"    style="max-width:90%"  style="max-width:90%" align="absmiddle" alt="PHP SMARTY 双循环(递归)输出分类 有关问题" ><font color="">美大专题</font></a></li>
<li class="forumli"><a href="news.asp?classid=16&newsclass=16" target="main">+--<img  id="folder180" src="images/leaf.gif"    style="max-width:90%"  style="max-width:90%" align="absmiddle" alt="PHP SMARTY 双循环(递归)输出分类 有关问题" ><font color="">月兔专题</font></a></li>
</ul></div></div>    <div class="bg03"><a href="news.asp?classid=14&newsclass=14" target="main">供求信息</a></div>              <div class="bg03">产品展示</div><div class="forumlist_groups"><div align="left"><ul>
<li class="forumli"><a href="news.asp?classid=18&ispro=true&newsclass=18" target="main">+--<img  id="folder180" src="images/leaf.gif"    style="max-width:90%"  style="max-width:90%" align="absmiddle" alt="PHP SMARTY 双循环(递归)输出分类 有关问题" ><font color="">美大灶具</font></a></li>
<li class="forumli"><a href="news.asp?classid=19&ispro=true&newsclass=19" target="main">+--<img  id="folder180" src="images/leaf.gif"    style="max-width:90%"  style="max-width:90%" align="absmiddle" alt="PHP SMARTY 双循环(递归)输出分类 有关问题" ><font color="">月图厨柜</font></a></li>
<li class="forumli"><a href="news.asp?classid=20&ispro=true&newsclass=20" target="main">+--<img  id="folder180" src="images/leaf.gif"    style="max-width:90%"  style="max-width:90%" align="absmiddle" alt="PHP SMARTY 双循环(递归)输出分类 有关问题" ><font color="">集成效果</font></a></li>
</ul></div></div>

原来的ASP代码 

HTML code

<!--Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->    <div class="bg03"><a href="news.php?classid=<%=rs(" id>&newsclass=" target="main"></a></div>              <div class="bg03"></div>        <div align="left"><ul>")        while not showparentclassrs.eof            response.Write"<li class="" forumli>"            set temprs = conn.execute("select * from Jh_newsclass where parentid = " & showparentclassrs("id"))            if temprs.eof and temprs.bof then                response.Write"<a href="news.php?classid=%22&showparentclassrs(%22id%22)%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20if%20showparentclassrs(%22ispro%22)%20then%20response.Write(%22&ispro=true%22)%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20response.Write%22&newsclass=%22&showparentclassrs(%22id%22)&%22" target="main">" & astr & tree & "<img  id="" folder180 src="" images    style="max-width:90%" height="" align="" absmiddle alt="PHP SMARTY 双循环(递归)输出分类 有关问题" ><font color="">" & showparentclassrs("classname")&"</font></a>"            else                response.Write astr & tree & "<img  id="" folder180 src="" images    style="max-width:90%" height="" align="" absmiddle alt="PHP SMARTY 双循环(递归)输出分类 有关问题" >" & showparentclassrs("classname")            end if            set temprs = nothing            response.Write"</li>"            call showparentclass(astr,tree&"--",showparentclassrs("id"))        showparentclassrs.movenext        wend    response.Write("</ul></div>")    end ifend sub%><div class="clear">
                 
              
              
        
            </div>