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

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Since Laravel uses config files to access and store .env data, you can set this data on the fly with config() method:

config(['database.connections.mysql.host' => '127.0.0.1']);

To get this data use config():

config('database.connections.mysql.host')

To set configuration values at runtime, pass an array to the config helper

https://laravel.com/docs/5.3/configuration#accessing-configuration-values

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