ThinkPHP学习（四）volist标签高级应用之多重嵌套循环
Action代码：
public function index(){ $prod = I("get.prod_en"); $id = I("get.id", 0, "int"); if ($prod == ""){ $serviceProduct = array();//多重循环遍历的数组//数据保存在两张表中，这里通过循环初始化$serviceProduct数组 $service = M("product_class")->order("oid ASC")->select(); for ($i = 0; $i $service[$i]["pc_cn"], "product"=>M("product")->where("prod_class_id=".$service[$i]["pcid"])->order("oid ASC")->select())); }//如果要在模板中输出变量，必须在在控制器中把变量传递给模板，系统提供了assign方法对模板变量赋值，无论何种变量类型都统一使用assign赋值。 $this->assign("serviceProduct", $serviceProduct); $this->display(); }else{ if ($id > 0){ $this->display("detail"); }else{ $this->assign('prod_en', $prod); $clsList = M("question_class")->order("oid ASC")->select(); $this->assign('clsList', $clsList); $qusList = M("question")->order("oid ASC")->select(); $this->assign('qusList', $qusList); $this->display("list"); } } } <volist name="serviceProduct" id="sp" key="i"> <dl class="dlist odd"> <dt>{$sp.srvName}</dt> <volist name="sp.product" id="pd" key="j"> <dd><a href="/index.php/question?prod_en=%7B%24pd.prod_en%7D">{$pd.prod_cn}</a></dd> <if condition="$j lt count($sp['product'])"> <dd>|</dd> </if> </volist> <if condition="count($sp['product']) EQ 0"> <dd> </dd> </if> </dl> </volist><if condition="$j lt count($sp['product'])"></if>
