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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                # 第2章 項目的準備工作 ## 框架 下載地址 https://github.com/yiisoft/yii2/releases/download/2.0.7/yii-basic-app-2.0.7.tgz ## 運行環境搭建 >=PHP5.4 php requirements.php //運行環境監測 ## 框架介紹 ... ## 創建一個操作 創建控制器 - 在 controllers 下新建 IndexController.php 控制器 - 類名:IndexController - 繼承 yii\web\Controller 創建方法 - 方法名前綴:action - 使用方法和函數一樣 - 渲染模板使用 render 方法 創建數據庫模型類 - 創建 \models\Admin.php 類 - 繼承 \yii\db\ActiveRecord 類 - 聲明 tableName 指定表名 - 使用 {{%表名}} 指定表前綴 ## 數據庫配置 \config\db.php ``` return [ 'class' => 'yii\db\Connection', 'dsn' => 'mysql:host=localhost;dbname=yii2basic', 'username' => 'root', 'password' => '', 'charset' => 'utf8', 'tablePrefix' => 'shop_' ]; ``` ``` DROP TABLE IF EXISTS `shop_admin`; CREATE TABLE IF NOT EXISTS `shop_admin`( `adminid` INT UNSIGNED NOT NULL AUTO_INCREMENT COMMENT '主鍵ID', `adminuser` VARCHAR(32) NOT NULL DEFAULT '' COMMENT '管理員賬號', `adminpass` CHAR(32) NOT NULL DEFAULT '' COMMENT '管理員密碼', `adminemail` VARCHAR(50) NOT NULL DEFAULT '' COMMENT '管理員電子郵箱', `logintime` INT UNSIGNED NOT NULL DEFAULT '0' COMMENT '登錄時間', `loginip` BIGINT NOT NULL DEFAULT '0' COMMENT '登錄IP', `createtime` INT UNSIGNED NOT NULL DEFAULT '0' COMMENT '創建時間', PRIMARY KEY(`adminid`), UNIQUE shop_admin_adminuser_adminpass(`adminuser`, `adminpass`), UNIQUE shop_admin_adminuser_adminemail(`adminuser`, `adminemail`) )ENGINE=InnoDB DEFAULT CHARSET=utf8; INSERT INTO `shop_admin`(adminuser,adminpass,adminemail,createtime) VALUES('admin', md5('123'), 'shop@imooc.com', UNIX_TIMESTAMP()); ``` ## 示例 創建 index 方法,實例化模型,模型查找數據庫數據,將數據傳遞給模板 ``` public function actionIndex() { $model = new Admin; $data = $model->find()->one(); return $this->render('index', compact('data')); } ``` 在視圖中輸出變量$data; ``` <p>index/index</p> <?php var_dump($data); ?> ``` 效果圖: ![](https://box.kancloud.cn/3d8f079713371cf91df797094319e074_1920x1007.jpg)
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                              哎呀哎呀视频在线观看