微信公众平台自定义菜单，PHP格式

{
    "button": [
        {
            "type": "click",
            "name": "今日歌曲",
            "key": "V1001_TODAY_MUSIC"
        },
        {
            "type": "click",
            "name": "歌手简介",
            "key": "V1001_TODAY_SINGER"
        },
        {
            "name": "菜单",
            "sub_button": [
                {
                    "type": "view",
                    "name": "搜索",
                    "url": "http://www.soso.com/"
                },
                {
                    "type": "view",
                    "name": "视频",
                    "url": "http://v.qq.com/"
                },
                {
                    "type": "click",
                    "name": "赞一下我们",
                    "key": "V1001_GOOD"
                }
            ]
        }
    ]
}

 http://mp.weixin.qq.com/wiki/10/0234e39a2025342c17a7d23595c6b40a.html