Debug

https://github.com/yiisoft/yii2-debug

Установка

"require-dev": {
"yiisoft/yii2-debug": "*"
},

Подключение

'modules' => [ 'debug' => [ 'class' => 'yii\gii\Module', 'allowedIPs' => ['127.0.0.1', '192.168.0.56'] ], ]