how to load different .env file for multiple domain in single laravel app?

Question

I would like to access single laravel application by multiple domain.

For routing i have used laravel route pattern for eg.

$appRoutes = function() {
     Route::group(['namespace'=>"Interface1"], function(){

     /** route for index page and User authentication pages **/
     Route::get('/', 'LoginController@showLoginForm')->name('login'); 
 });
};

Route::group(array('domain' => 'example1.com'), $appRoutes);
Route::group(array('domain' => 'example2.com'), $appRoutes);

Now .env for each domain i have replaced config variable value inside AppServiceProvider.php register method:

   if(isset($_SERVER['HTTP_HOST']) && !empty($_SERVER['HTTP_HOST']) ){ 
        if($_SERVER['HTTP_HOST']=='example1.com'){  
            $configArray = [
                'APP_NAME' => 'Application 1',
                'APP_URL'  =>  'http://example1.com', 
            ]; 
        }else{  
            $configArray = [
                'APP_NAME' => 'Application 2', 
                'APP_URL' =>  'http://example2.com, 
            ];  
        }  
        config($configArray);
    } 

but still i am not getting correct domain url using url(config('app.url'))

How to load all .env variable overwrite for each domain?

Answer 1

For the current Laravel 7.x. at the time of writing this, you can add the following code in your bootstrap/app.php file just before return $app statement.

// bootstrap/app.php

// ...

/*
|-----------------------------------------------
| Load domain-specific .env file if it exists
|-----------------------------------------------
*/

if(isset($_SERVER['HTTP_HOST']) && !empty($_SERVER['HTTP_HOST'])){
    $domain = $_SERVER['HTTP_HOST'];
}

if (isset($domain)) {
    $dotenv = Dotenv\Dotenv::createImmutable(base_path(), '.env.'.$domain);

    try {
        $dotenv->load();
    } catch (\Dotenv\Exception\InvalidPathException $e) {
        // No custom .env file found for this domain
    }
}

// ...

return $app;

Next, you should have a .env file for each domain in the following format .env.example1.com .env.example2.com. You can leave the original .env as a fallback for domains that lack an explicit .env file.

For Laravel 5.x or Laravel 6.x, you can find more from the original solution.