1. JS-SDK

?? ??? WeChat ??? JS? ?? ????? ???. WeChat JS-SDK? ? ???? ?? WeChat ?? ????? ???? WeChat ??? ? ?? ?????.

1) JS ???? ?? ????

<script src="http://res.wx.qq.com/open/js/jweixin-1.0.0.js"></script>

2) ?? ?????? ?? ?? ?? ?? ??

<script>
    wx.config({
    debug: false, // 開啟調(diào)試模式,調(diào)用的所有api的返回值會在客戶端alert出來，若要查看傳入的參數(shù)，可以在pc端打開，參數(shù)信息會通過log打出，僅在pc端時才會打印。
    appId: &#39;&#39;, // 必填，公眾號的唯一標識
    timestamp: , // 必填，生成簽名的時間戳
    nonceStr: &#39;&#39;, // 必填，生成簽名的隨機串
    signature: &#39;&#39;,// 必填，簽名
});
</script>

appId? ?????? ID, wx? ???? ???, timestampphp??? time()? ???? ???? nonceStr? uniqid()? ???? ??? ????? ?? ????? ?? ????.

protected function getJsapiConfig()
    {
        $weixin = new Weixin();
        $ticketMongo = new WeixinJsapiTicket();
        $data = [
            'appId' => $weixin->getAppId(),
            'noncestr' => uniqid(),
            'jsapi_ticket' => $ticketMongo->getJsapiTicket(),
            'timestamp' => time()
        ];
        //拼裝原始待簽名串
        $src = [
            'noncestr=' . $data['noncestr'],
            'jsapi_ticket=' . $data['jsapi_ticket'],
            'timestamp=' . $data['timestamp']
        ];
        sort($src);
        $data['signature'] = sha1(implode('&', $src));
        return $data;
    }

??? "jsapi_ticket"? ?? ?????. jsapi_ticket? ?? ???? WeChat JS ?????? ???? ? ???? ?? ?????. ???? ???? access_token? ?? ?? jsapi_ticket? ????? 7200????. ?? ??? ?? jsapi_ticket? ?? ?? API ?? ??? ?? ???? ???? ?? jsapi_ticket? MongoDB? ???????.

/**
     * 通過access_token獲取jsapi_ticket
     * @param $access_token
     * @return string | null
     */
    public function getJsapiTicket($access_token)
    {
        $url = 'https://api.weixin.qq.com/cgi-bin/ticket/getticket';
        $param = [
        'access_token' => $access_token,
        'type' => 'jsapi'
                ];
        $res = $this->request($url, $param);
        $result = json_decode($res, true);
        if (isset($result['errcode']) && $result['errcode'] == 0 && isset($result['ticket'])) {
            return $result;
        }
        return null;
    }

3) ??? ?????? ?? ???? ?? ??

1) prepay_id ?? on ???? ??? ?? ??? ????. ?? ??? ??? ??? ????. ??? ??? ??? ?????.

2) md5(uniqid('baiaimama'))? ?????. nonceStr? ????

3) signType? MD5? ?????

4) paySign? ??? ????? ?? ???? ???? ????.

wx.chooseWXPay({
    timestamp: 0, // 支付簽名時間戳，注意微信jssdk中的所有使用timestamp字段均為小寫。但最新版的支付后臺生成簽名使用的timeStamp字段名需大寫其中的S字符
    nonceStr: '', // 支付簽名隨機串，不長于 32 位
    package: '', // 統(tǒng)一支付接口返回的prepay_id參數(shù)值，提交格式如：prepay_id=***）
    signType: '', // 簽名方式，默認為'SHA1'，使用新版支付需傳入'MD5'
    paySign: '', // 支付簽名
    success: function (res) {
        // 支付成功后的回調(diào)函數(shù)
    }
});

/**
     * 生成jsapi需要調(diào)用的參數(shù)
     */
    public function getJsapiParam(){
        $param = [
        'appId' => $this->APPID,
        'timeStamp' => time(),
        'nonceStr' => md5(uniqid('baiaimama')),
        'package' => 'prepay_id='.$this->param['prepay_id'],
        'signType' => 'MD5'
                ];
    
        $str = [];
        foreach($param as $k=>$v){
            if(!empty($v)){
                $str[] = "{$k}={$v}";
            }
        }
        sort($str);
        $unsignKey = join('&', $str).'&key='.$this->KEY;
        $sign = strtoupper(md5($unsignKey));
        $param['paySign'] = $sign;
        return $param;
    }

??? ??

??? ????? ?? ?? ??, ?? ??? ???, ??? ?? ?? ??? ?????.

?? ????:

github ??: https://github.com/pwstrick/weixin_demo

CSDN ??: http://download.csdn.net/detail/loneleaf1 /9045731

? ?? WeChat ?? ??? ?? ? WeChat ?? ?? ??? ??? PHP ??? ????? ?????!