Zend-friendly app.php using APPLICATION_ENV

app.php

<?php

// This is the revised `web/app.php` (click the previous edit of this gist to see the original)
//
// For those of us that deploy along-side Zend Framework apps, whose convention has been to pivot configuration
// around APPLICATION_ENV, `web/app.php` and `web/app_dev.php` is redundant.

require_once __DIR__.'/../app/bootstrap.php.cache';
require_once __DIR__.'/../app/AppKernel.php';
//require_once __DIR__.'/../app/bootstrap_cache.php.cache';
//require_once __DIR__.'/../app/AppCache.php';

use Symfony\Component\HttpFoundation\Request;

// Define application environment, per Zend's suggestion
defined('APPLICATION_ENV')
    || define('APPLICATION_ENV', getenv('APPLICATION_ENV') ?: 'production');

// Map Zend APPLICATION_ENV to Symfony Kernel Environment
$env = (APPLICATION_ENV === 'staging')      ? 'stage'
     : (APPLICATION_ENV === 'testing')      ? 'test'
     : (APPLICATION_ENV === 'development')  ? 'dev'
     : 'prod';

//$kernel = new AppCache(new AppKernel('prod', false));
$kernel = new AppKernel($env, $env !== 'prod')  // Debug when not in production
$kernel->handle(Request::createFromGlobals())->send();