How to set .env values in laravel programmatically on the fly

Question

I have a custom CMS that I am writing from scratch in Laravel and want to set env values i.e. database details, mailer details, general configuration, etc from

Answer 1

This solution builds upon the one provided by Elias Tutungi, it accepts multiple value changes and uses a Laravel Collection because foreach's are gross

    function set_environment_value($values = [])
    {
        $path = app()->environmentFilePath();

        collect($values)->map(function ($value, $key) use ($path) {
            $escaped = preg_quote('='.env($key), '/');

            file_put_contents($path, preg_replace(
                "/^{$key}{$escaped}/m",
               "{$key}={$value}",
               file_get_contents($path)
            ));
        });

        return true;
    }