Run php artisan command in out of laravel project

I am writing installer for laravel project.
but for some reason I don't run this installer from laravel project.
I use php code. I want to use php artisan migrate on my installer and I know that I can use this command system("php artisan migrate") but I don't want to use system functions on my installer. Is there any way to artisan command on php out of laravel?

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