Webmozart\Console\Process\ProcessLauncher::run PHP Method

    private function run($command, array $arguments)
    {
        if (!function_exists('proc_open')) {
            throw new RuntimeException('The "proc_open" function is not available.');
        }
        $replacements = array();
        foreach ($arguments as $name => $value) {
            $replacements['%' . $name . '%'] = ProcessUtils::escapeArgument($value);
        }
        // Insert quoted arguments
        $command = strtr($command, $replacements);
        $dspec = array(0 => STDIN, 1 => STDOUT, 2 => STDERR);
        $this->running = true;
        $proc = proc_open($command, $dspec, $pipes, null, null);
        if (is_resource($proc)) {
            while (true) {
                $status = proc_get_status($proc);
                if (!$status['running']) {
                    break;
                }
                sleep($this->checkInterval);
            }
            proc_close($proc);
        }
        $this->running = false;
        return isset($status['exitcode']) ? $status['exitcode'] : 1;
    }