<?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\Component\Process;

/**

 * PhpProcess runs a PHP script in an independent process.

 *

 * $p = new PhpProcess('<?php echo "foo"; ?>');

 * $p->run();

 * print $p->getOutput()."\n";

 *

 * @author Fabien Potencier <fabien@symfony.com>

 *

 * @api

 */

class PhpProcess extends Process

{

    private $executableFinder;

    /**

     * Constructor.

     *

     * @param string  $script  The PHP script to run (as a string)

     * @param string  $cwd     The working directory

     * @param array   $env     The environment variables

     * @param integer $timeout The timeout in seconds

     * @param array   $options An array of options for proc_open

     *

     * @api

     */

    public function __construct($script, $cwd = null, array $env = array(), $timeout = 60, array $options = array())

    {

        parent::__construct(null, $cwd, $env, $script, $timeout, $options);

        $this->executableFinder = new PhpExecutableFinder();

    }

    /**

     * Sets the path to the PHP binary to use.

     *

     * @api

     */

    public function setPhpBinary($php)

    {

        $this->setCommandLine($php);

    }

    /**

     * Runs the process.

     *

     * @param Closure|string|array $callback A PHP callback to run whenever there is some

     *                                       output available on STDOUT or STDERR

     *

     * @return integer The exit status code

     *

     * @api

     */

    public function run($callback = null)

    {

        if (null === $this->getCommandLine()) {

            if (false === $php = $this->executableFinder->find()) {

                throw new \RuntimeException('Unable to find the PHP executable.');

            }

            $this->setCommandLine($php);

        }

        return parent::run($callback);

    }

}