protected function runCommandInBackground(): int
    {
        $process = Process::fromShellCommandline(
            $this->buildCommand(),
            $this->path,
            null,
            null,
            null
        );

        return $process->run();
    }
protected function runCommandInBackground(): int
    {
        $process = Process::fromShellCommandline(
            $this->buildCommand(),
            $this->path,
            null,
            null,
            null
        );

        return $process->run();
    }
protected function runCommandInBackground ( ) : int { $ process = Process :: fromShellCommandline ( $ this -> buildCommand ( ) , $ this -> path , null , null , null ) ; return $ process -> run ( ) ; }
Run the command in the background.

@return int The exit status code
Run the command in the background .