Lumen source code

In the lumen Application. php constructor, the method for starting the container {code...} does not understand its role and purpose.

In lumen'sApplication.phpHow to start a container in Constructor

vendor/laravel/lumen-framework/src/Application.php line:103 

vendor/illuminate/container/Container.php line：1159

Do not understand its role and purpose.

Reply content:

In lumen'sApplication.phpHow to start a container in Constructor

vendor/laravel/lumen-framework/src/Application.php line:103 

vendor/illuminate/container/Container.php line：1159

Do not understand its role and purpose.

Read the Lumen 5.3 source code:

protected function bootstrapContainer(){    static::setInstance($this);    $this->instance('app', $this);    $this->instance('Laravel\Lumen\Application', $this);    $this->instance('path', $this->path());    $this->registerContainerAliases();}

Integration$this->instance(...)The Singleton mode is implemented.