shlink/config/container.php

<?php
use Dotenv\Dotenv;
use Zend\ServiceManager\ServiceManager;

chdir(dirname(__DIR__));

require 'vendor/autoload.php';

// If the Dotenv class exists, load env vars and enable errors
if (class_exists(Dotenv::class)) {
    error_reporting(E_ALL);
    ini_set('display_errors', 1);
    $dotenv = new Dotenv(__DIR__ . '/..');
    $dotenv->load();
}

// Build container
$config = require __DIR__ . '/config.php';
$container = new ServiceManager($config['services']);
$container->setService('config', $config);
return $container;