[ 'request' => [ // !!! insert a secret key in the following (if it is empty) - this is required by cookie validation 'cookieValidationKey' => 'Q-XSjZ7zo9yAb94nLHF0E0gJV8Rx1sEO', ], 'urlManager' => [ 'enablePrettyUrl' => true, 'showScriptName' => false, 'rules' => [ ], ] , ], ]; if (!YII_ENV_TEST) { // configuration adjustments for 'dev' environment // $config['bootstrap'][] = 'debug'; // $config['modules']['debug'] = [ // 'class' => 'yii\debug\Module', // ]; $config['bootstrap'][] = 'gii'; $config['modules']['gii'] = [ 'class' => 'yii\gii\Module', ]; } return $config;