PFinal\Wechat\Message\Music::jsonData PHP Method

    public function jsonData()
    {
        $music = array();
        //将key转为小写，微信json格式为全小写
        foreach ($this->attributes['Music'] as $k => $v) {
            $music[$k] = array_change_key_case($v, CASE_LOWER);
        }
        return array('music' => $music);
    }