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function bind($abstract, $concrete = null) { return Container::getInstance()->bind($abstract, $concrete); }
App::class What does it mean? That class cannot be found
function app(string $name = '', array $args = [], bool $newInstance = false) { return Container::getInstance()->make($name ?: App::class, $args, $newInstance); }
The code is posted wrong
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
function app(string $name = '', array $args = [], bool $newInstance = false) { return Container::getInstance()->make($name ?: App::class, $args, $newInstance); }The code is posted wrong