namespace app\middleware;

/**

• 访问环境检查，是否是微信或支付宝等
  */
  class InAppCheck
  {
  public function handle($request, \Closure $next)
  {
  if (preg_match(‘_{micromessenger}i’, $request->header(‘user-agent’))) {
  $request->InApp = ‘WeChat’;
  } else if (preg_match(‘_alipayi’, $request->header(‘user-agent’))) {
  $request->InApp = ‘Alipay’;
  }
  return $next($request);
  }
  }

这里怎么可以调用