Kraken\Util\Isolate\Isolate::createChild PHP Method

    private function createChild($pid, $sockets)
    {
        fclose($sockets[1]);
        $this->pid = (string) $pid;
        $this->socket = $sockets[0];
        while (($message = @fgets($this->socket)) !== false) {
            $ex = null;
            try {
                $data = json_decode($message, true);
                $return = (string) call_user_func_array($data['func'], $data['params']);
            } catch (Error $ex) {
            } catch (Exception $ex) {
            }
            if ($ex !== null || @fwrite($this->socket, $return . "\n") === false) {
                break;
            }
        }
        fclose($sockets[0]);
        exit(0);
    }