Solved] Here is the problem of class declaration in PHP | SolveForum
ReflectionException : Class router does not exist · Issue #187 · laravel-zero/laravel-zero · GitHub
PHP composer autoload always reports an error class not found | Develop Paper
Warning: call_user_func_array() expects parameter 1 to be a valid callback, как исправить? - IT & Software development Q&A
GitHub - koddn/php-router: Koddn Php router is php class that can easily handle routes in a PHP application, supports multiple callbacks, redirects and send responses to client in JSON.