Environment configuration in Yii2

Default Debug configuration

In the entry file

<span>defined</span> ( 'YII_DEBUG' ) or <span>define</span> ( 'YII_DEBUG', <span>true</span><span> );
</span><span>defined</span> ( 'YII_ENV' ) or <span>define</span> ( 'YII_ENV', 'dev' );

After the above configuration, all exceptions will be displayed directly on the page, which is the popular page

Formal production environment configuration

<span>defined</span> ( 'YII_DEBUG' ) or <span>define</span> ( 'YII_DEBUG', <span>false</span><span> );
</span><span>defined</span> ( 'YII_ENV' ) or <span>define</span> ( 'YII_ENV', 'PRODUCTION' );

Exceptions in this way will be caught by the Yii2 framework exception handling module

The above introduces the environment configuration in Yii2, including various aspects. I hope it will be helpful to friends who are interested in PHP tutorials.