vendor/symfony/symfony/src/Symfony/Bundle/FrameworkBundle/Command/ServerRunCommand.php

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<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Bundle\FrameworkBundle\Command;

use Symfony\Component\Console\Input\InputArgument;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\Console\Style\SymfonyStyle;
use Symfony\Component\Process\PhpExecutableFinder;
use Symfony\Component\Process\ProcessBuilder;

/**
 * Runs Symfony application using PHP built-in web server.
 *
 * @author Michał Pipa <michal.pipa.xsolve@gmail.com>
 */
class ServerRunCommand extends ServerCommand
{
    /**
     * {@inheritdoc}
     */
    protected function configure()
    {
        $this
            ->setDefinition(array(
                new InputArgument('address', InputArgument::OPTIONAL, 'Address:port', '127.0.0.1'),
                new InputOption('port', 'p', InputOption::VALUE_REQUIRED, 'Address port number', '8000'),
                new InputOption('docroot', 'd', InputOption::VALUE_REQUIRED, 'Document root', null),
                new InputOption('router', 'r', InputOption::VALUE_REQUIRED, 'Path to custom router script'),
            ))
            ->setName('server:run')
            ->setDescription('Runs PHP built-in web server')
            ->setHelp(<<<'EOF'
The <info>%command.name%</info> runs PHP built-in web server:

  <info>%command.full_name%</info>

To change default bind address and port use the <info>address</info> argument:

  <info>%command.full_name% 127.0.0.1:8080</info>

To change default docroot directory use the <info>--docroot</info> option:

  <info>%command.full_name% --docroot=htdocs/</info>

If you have custom docroot directory layout, you can specify your own
router script using <info>--router</info> option:

  <info>%command.full_name% --router=app/config/router.php</info>