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Accepted
dddenis
Asked: 2020-03-10 09:16:22 +0800 CST 2020-03-10 09:16:22 +0800 CST

How to choose which .env to load based on subdomain in Laravel 5?

  • 772

How to make Laravel find out about the .env file that I want to load?

The subdomain name matches the .env file, I load it with Dotenv and also with the Laravel application with the loadEnvironmentFrom method.

Then I run:

php artisan config:cache

And finally when checking $_ENV or getenv(string) I can see that it is loaded correctly, but... It is not, Laravel keeps pointing to the .env file

bootstrap/app.php :

$app = new Illuminate\Foundation\Application(
    realpath(__DIR__.'/../')
);

$app->singleton(
    Illuminate\Contracts\Http\Kernel::class,
    App\Http\Kernel::class
);

$app->singleton(
    Illuminate\Contracts\Console\Kernel::class,
    App\Console\Kernel::class
);

$app->singleton(
    Illuminate\Contracts\Debug\ExceptionHandler::class,
    App\Exceptions\Handler::class
);

if (isset($_SERVER['HTTP_HOST'])) {
    $hostArray = explode('.', $_SERVER['HTTP_HOST']);
    $envFile = sprintf('.%s.env', $hostArray[0]);
    $path = __DIR__.'/../';
    if (count($hostArray) > 2 && file_exists($path, $envFile)) {
        $dotenv = new Dotenv\Dotenv($path, $envFile);
        $dotenv->load();
        $app->loadEnvironmentFrom($envFile);
    }
}

return $app;
php

2 Answers

  1. Best Answer

    When I have done similar things, I have had success using the overload()DotEnv Loader method, to make the instance mutable, although I am not 100% sure that it is the problem in this case, I propose it as a first answer:

        $dotenv = new Dotenv\Dotenv($path, $envFile);
    $dotenv->overload();

    EDITION:

    After testing the OP's code in a pre-production environment and reviewing the PHP documentation, the error is that you are passing two parameters instead of one in the file_exists() function, which only accepts one parameter ( see documentation ).

    Once this error is corrected, the correct .env is read using both the Dotenv load()and function overload().

    The correction is then, to form a single string with $pathand with $envFile:

    if (isset($_SERVER['HTTP_HOST'])) {
    $hostArray = explode('.', $_SERVER['HTTP_HOST']);
    $envFile = sprintf('.%s.env', $hostArray[0]);
    $path = __DIR__.'/../';
    if (count($hostArray) > 2 && file_exists($path . $envFile)) {
        $dotenv = new Dotenv\Dotenv($path, $envFile);
        $dotenv->load();
        $app->loadEnvironmentFrom($envFile);
    }
}
    • 9

  2. Checking the class Dotenv\Dotenvin the methodload

    public function load()
{
    return $this->loadData();
}
....
protected function loadData($overload = false)
{
    $this->loader = new Loader($this->filePath, !$overload);

    return $this->loader->load();
}

    Generates an instance of the object Dotenv\Loader, whose second parameter is a boolean value that indicates if the loader object will be immutable (it will not overwrite the variables already set), when making the call load()we tell it not to overwrite the parameter of the same function, and when generating the object Loaderwe tell it to be immutable, for that reason it doesn't load the file you need. You must call the method overloadof the same class DotEnvdefined as follows:

    public function overload()
{
    return $this->loadData(true);
}

    leaving your code like this

    $app = new Illuminate\Foundation\Application(
    realpath(__DIR__.'/../')
);

$app->singleton(
    Illuminate\Contracts\Http\Kernel::class,
    App\Http\Kernel::class
);

$app->singleton(
    Illuminate\Contracts\Console\Kernel::class,
    App\Console\Kernel::class
);

$app->singleton(
    Illuminate\Contracts\Debug\ExceptionHandler::class,
    App\Exceptions\Handler::class
);

if (isset($_SERVER['HTTP_HOST'])) {
    $hostArray = explode('.', $_SERVER['HTTP_HOST']);
    $envFile = sprintf('.%s.env', $hostArray[0]);
    $path = __DIR__.'/../';
    if (count($hostArray) > 2 && file_exists($path. $envFile)) {
        $dotenv = new Dotenv\Dotenv($path, $envFile);
        $dotenv->overload();
        $app->loadEnvironmentFrom($envFile);
    }
}

return $app;
    • 4