ThinkPHP學習（四）volist標簽高級應用之多重嵌套循環

Action代碼：

    public function index(){
		$prod = I("get.prod_en");
		$id = I("get.id", 0, "int");
		if ($prod == ""){
			$serviceProduct = array();//多重循環遍歷的數組

//數據保存在兩張表中，這裡通過循環初始化$serviceProduct數組
			$service = M("product_class")->order("oid ASC")->select();
			for ($i = 0; $i < count($service); $i++)
			{
				array_push($serviceProduct, array("srvName"=>$service[$i]["pc_cn"], "product"=>M("product")->where("prod_class_id=".$service[$i]["pcid"])->order("oid ASC")->select()));
			}

//如果要在模板中輸出變量，必須在在控制器中把變量傳遞給模板，系統提供了assign方法對模板變量賦
值，無論何種變量類型都統一使用assign賦值。
			$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");
			}
		}
	}

	
		

			
{$sp.srvName}
			
				
{$pd.prod_cn}
				
				
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