phprs\Response::__construct PHP Method

    function __construct($sender = null)
    {
        if ($sender !== null) {
            $this->sender = $sender;
        }
        if ($this->sender === null) {
            // TODO 严格检查方法的参数数量
            // 输出时按照下面数组中的顺序输出
            $this->sender = array('header' => function ($_ = null) {
                call_user_func_array('header', func_get_args());
            }, 'status' => function ($var, $replace = true) {
                header($_SERVER["SERVER_PROTOCOL"] . ' ' . $var, $replace);
            }, 'cookie' => function ($name, $value, $expire = null, $path = '/', $domain = null, $secure = null) {
                if (is_string($expire)) {
                    $expire = strtotime($expire);
                }
                setcookie($name, $value, $expire, $path, $domain, $secure);
            }, 'body' => function ($var) {
                if (is_array($var) || is_object($var)) {
                    header("Content-Type: application/json; charset=UTF-8");
                    echo json_encode($var);
                    // TODO 自定义适配方法
                } else {
                    echo $var;
                }
            }, 'break' => function ($_ = null) {
                //do nothing
            }, 'res' => function ($status, $body) {
                header($_SERVER["SERVER_PROTOCOL"] . ' ' . $status, true);
                if (is_array($body)) {
                    header("Content-Type: application/json; charset=UTF-8");
                    echo json_encode($body);
                    // TODO 自定义适配方法
                } else {
                    echo $body;
                }
            });
        }
    }