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

<!--

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-->{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

<!--

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-->$sql = "select * from jh_newsclass where parentid = 0";
$result = $mysqli-&gt;query($sql);
while ($row = $result-&gt;fetch_row()) {
    $classlist[] = array(
        'id'=&gt;$row[0],
        'classname'=&gt;$row[2],
        'parentid'=&gt;$row[1],
        'ispro'=&gt;$row[3],    
        );
}
$result-&gt;close();
$mysqli-&gt;close();
$smarty-&gt;assign('classlist',$classlist);
$smarty-&gt;assign('webname',Webname);
$smarty-&gt;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

<!--

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-->              <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&amp;newsclass=3" target="main">+--<img  src="/static/imghw/default1.png" data-src="images/leaf.gif" class="lazy" id="folder180"    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&amp;newsclass=6" target="main">+--<img  src="/static/imghw/default1.png" data-src="images/leaf.gif" class="lazy" id="folder180"    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&amp;newsclass=16" target="main">+--<img  src="/static/imghw/default1.png" data-src="images/leaf.gif" class="lazy" id="folder180"    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&amp;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&amp;ispro=true&amp;newsclass=18" target="main">+--<img  src="/static/imghw/default1.png" data-src="images/leaf.gif" class="lazy" id="folder180"    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&amp;ispro=true&amp;newsclass=19" target="main">+--<img  src="/static/imghw/default1.png" data-src="images/leaf.gif" class="lazy" id="folder180"    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&amp;ispro=true&amp;newsclass=20" target="main">+--<img  src="/static/imghw/default1.png" data-src="images/leaf.gif" class="lazy" id="folder180"    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

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-->






    <div class="bg03"><a href="news.php?classid=&lt;%=rs(" id>&amp;newsclass=" target="main"&gt;</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 = " &amp; showparentclassrs("id"))
            if temprs.eof and temprs.bof then
                response.Write"<a href="news.php?classid=%22&amp;showparentclassrs(%22id%22)%0A%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20if%20showparentclassrs(%22ispro%22)%20then%20response.Write(%22&amp;ispro=true%22)%0A%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20response.Write%22&amp;newsclass=%22&amp;showparentclassrs(%22id%22)&amp;%22" target="main">" &amp; astr &amp; tree &amp; "<img  src="/static/imghw/default1.png" data-src="" images class="lazy" id="" folder180    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="">" &amp; showparentclassrs("classname")&amp;"</font></a>"
            else
                response.Write astr &amp; tree &amp; "<img  src="/static/imghw/default1.png" data-src="" images class="lazy" id="" folder180    style="max-width:90%" height="" align="" absmiddle alt=" PHP SMARTY 双循环(递归)输出分类 有关问题 " >" &amp; showparentclassrs("classname")
            end if
            set temprs = nothing
            response.Write"</li>"


            call showparentclass(astr,tree&amp;"--",showparentclassrs("id"))
        showparentclassrs.movenext
        wend
    response.Write("</ul></div>")
    end if
end sub
%&gt;
 <div class="clear">
                 
              
              
        
            </div>