yii composer install

web/index_prod.php

@@ -0,0 +1,12 @@
+<?php
+
+// comment out the following two lines when deployed to production
+defined('YII_DEBUG') or define('YII_DEBUG', false);
+defined('YII_ENV') or define('YII_ENV', 'prod');
+
+require(__DIR__ . '/../vendor/autoload.php');
+require(__DIR__ . '/../vendor/yiisoft/yii2/Yii.php');
+
+$config = require(__DIR__ . '/../config/web.php');
+
+(new yii\web\Application($config))->run();