Symfony's app_dev.php shows "half" source code - php

Question

I downloaded it with composer. Tried to run with the PHPStorm's built in server and it does not load the toolbar (404).
Then I tried to run it with Apache, I copied my project to /var/www/html and then I went to http://localhost/symfony_app/web/app_dev.php in the browser.
What is strange is that it partially shows the source code (but without line breaks):
loadClassCache(); $request = Request::createFromGlobals(); $response = $kernel->handle($request); $response->send(); $kernel->terminate($request, $response);
This file (complete) has the following source code:
<?php
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\Debug\Debug;
// If you don't want to setup permissions the proper way, just uncomment the following PHP line
// read http://symfony.com/doc/current/book/installation.html#checking-symfony-application-configuration-and-setup
// for more information
//umask(0000);
// This check prevents access to debug front controllers that are deployed by accident to production servers.
// Feel free to remove this, extend it, or make something more sophisticated.
if (isset($_SERVER['HTTP_CLIENT_IP'])
|| isset($_SERVER['HTTP_X_FORWARDED_FOR'])
|| !(in_array(#$_SERVER['REMOTE_ADDR'], ['127.0.0.1', 'fe80::1', '::1']) || php_sapi_name() === 'cli-server')
) {
header('HTTP/1.0 403 Forbidden');
exit('You are not allowed to access this file. Check '.basename(__FILE__).' for more information.');
}
/**
* #var Composer\Autoload\ClassLoader $loader
*/
$loader = require __DIR__.'/../app/autoload.php';
Debug::enable();
$kernel = new AppKernel('dev', true);
$kernel->loadClassCache();
$request = Request::createFromGlobals();
$response = $kernel->handle($request);
$response->send();
$kernel->terminate($request, $response);
In the Apache error logs there is nothing, just restarts.
The app works OK with Symfony's built-in server, in port 8000

Answer 1

The same thing just happened to me on a new vagrant setup I made. Weirdest thing I've seen. It turns out I had installed php5, but not completely. I needed to install specifically the libapache2-mod-php5 package in Ubuntu. Running this installed it for me in Ubuntu:
sudo apt-get install php5
I don't know what system you're running on but it might be a missing php package like this that's the culprit.

Answer 2

if you have apache2 and php installed and got this issue enable
mod_rewrite
you can do that with:
a2enmod rewrite
in your terminal and restard apache