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                # 4.4 視圖 視圖是MVC模式中的一部分,它代表數據到終端用戶展示邏輯,視圖文件為PHP腳本,主要包含HTML代碼和展示類PHP代碼。MSF框架整合了第三方的模板引擎[plates](https://github.com/pinguo/plates),并修改了部分源碼。 ## 使用視圖 ```php <?php /** * 示例控制器 * * @author camera360_server@camera360.com * @copyright Chengdu pinguo Technology Co.,Ltd. */ namespace App\Controllers; use PG\MSF\Controllers\Controller; use App\Models\Demo as DemoModel; class Demo extends Controller { // 略... public function actionTplView() { $data = [ 'title' => 'MSF Demo View', 'friends' => [ [ 'name' => 'Rango', ], [ 'name' => '鳥哥', ], [ 'name' => '小馬哥', ], ] ]; $this->outputView($data); } } ``` 示例代碼: [./php-msf-demo/app/Controllers/Demo.php](https://github.com/pinguo/php-msf-demo/blob/master/app/Controllers/Demo.php) - Controller::outputView($data, $view = null) 加載視圖文件,并渲染$data數據 `$data`傳遞到視圖文件的數據,為一個關聯數組 `$view`視圖文件名稱,是相對`app/Views`或者`php-msf/src/Views`的文件名,注意不需要寫`.php`的后綴 加載的視圖文件為[./app/Views/Demo/TplView.php](https://github.com/pinguo/php-msf-demo/blob/master/app/Views/Demo/TplView.php),即: ```php <h1><?=$this->e($title)?></h1> <h2>Friends</h2> <ul> <?php foreach($friends as $friend): ?> <li> <?=$this->e($friend['name'])?> </li> <?php endforeach ?> </ul> ``` ## 視圖加載策略 ### 策略1 默認情況下框架會根據請求的控制器名和方法名自動加載視圖文件,比如: [http://127.0.0.1:8000/Demo/TplView](http://127.0.0.1:8000/Demo/TplView) 這樣的URL會自動首先加載的視圖文件為`app/Views/Demo/TplView.php`,如果失敗,會繼續加載`php-msf/src/Views/Demo/TplView.php`,如果還是失敗,則會拋出異常。 ### 策略2 如果傳遞了outputView()方法的第二個參數,則會根據$view來加載視圖文件,策略同1,先加載app下面的視圖,如果未找到則加載框架內置的視圖文件 ## 模板語法 更多的模板方法,請參考[plates docs](https://github.com/pinguo/plates/tree/master/docs)
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