Lime\App::req_is PHP Method

    public function req_is($type)
    {
        switch (strtolower($type)) {
            case 'ajax':
                return isset($_SERVER['HTTP_X_REQUESTED_WITH']) && $_SERVER['HTTP_X_REQUESTED_WITH'] == 'XMLHttpRequest' || isset($_SERVER["CONTENT_TYPE"]) && stripos($_SERVER["CONTENT_TYPE"], 'application/json') !== false || isset($_SERVER["HTTP_CONTENT_TYPE"]) && stripos($_SERVER["HTTP_CONTENT_TYPE"], 'application/json') !== false;
                break;
            case 'mobile':
                $mobileDevices = ["midp", "240x320", "blackberry", "netfront", "nokia", "panasonic", "portalmmm", "sharp", "sie-", "sonyericsson", "symbian", "windows ce", "benq", "mda", "mot-", "opera mini", "philips", "pocket pc", "sagem", "samsung", "sda", "sgh-", "vodafone", "xda", "iphone", "ipod", "android"];
                return preg_match('/(' . implode('|', $mobileDevices) . ')/i', strtolower($_SERVER['HTTP_USER_AGENT']));
                break;
            case 'post':
                return strtolower($_SERVER['REQUEST_METHOD']) == 'post';
                break;
            case 'get':
                return strtolower($_SERVER['REQUEST_METHOD']) == 'get';
                break;
            case 'put':
                return strtolower($_SERVER['REQUEST_METHOD']) == 'put';
                break;
            case 'delete':
                return strtolower($_SERVER['REQUEST_METHOD']) == 'delete';
                break;
            case 'ssl':
                return !empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off';
                break;
        }
        return false;
    }