"Laravel 5.1/5.8 Cheatsheet: https://www.php.cn/phpkj/laravel/cheatsheet58.html" Manual introduction: Laravel 5.8 continues to optimize on the basis of Laravel 5.7, including the introduction of new Eloquent relationships ( has-one-through), optimize email verification, automatic registration of authorization policy classes based on agreement, DynamoDB cache and Session driver, optimize time zone configuration of task scheduler, support assigning multiple authentication guards to broadcast channels, PSR-16 cache driver specification etc.