この記事には、WeChat へのアクセス、WeChat ユーザー情報(bào)の取得、WeChat 支払い、JSSDK 構(gòu)成パラメーターの取得など、多くの內(nèi)容が含まれています。読者が WeChat 開発について主観的に理解していない場合は、まず WeChat パブリック プラットフォーム開発者向けドキュメント を読んでから、より良い結(jié)果を得るためにこの記事を読むことをお?jiǎng)幛幛筏蓼?。また、この記事の章ごとのバージョンは、Babao Porridge のブログでご覧いただけます。

WeChatに接続します

Yii2バックグラウンド設(shè)定

1. app/config/params.phpでトークンパラメータを設(shè)定します

return [
    //微信接入
    'wechat' =>[
        'token' => 'your token',
    ],
];

2. インターフェイスモジュールのため、ルーティングを設(shè)定しますRESTful API

ルールを定義する必要があります。

'urlManager' => [
    'enablePrettyUrl' => true,
    'enableStrictParsing' => true,
    'showScriptName' => false,
    'rules' => [
        [
            'class' => 'yii\rest\UrlRule',
            'controller' => 'wechat',
            'extraPatterns' => [
                'GET valid' => 'valid',
            ],
        ],
    ],
],

<?php

namespace api\controllers;

use Yii;
use yii\rest\ActiveController;

class WechatController extends ActiveController
{

    public $modelClass = &#39;&#39;;

    public function actionValid()
    {
        $echoStr = $_GET["echostr"];
        $signature = $_GET["signature"];
        $timestamp = $_GET["timestamp"];
        $nonce = $_GET["nonce"];
        //valid signature , option
        if($this->checkSignature($signature,$timestamp,$nonce)){
            echo $echoStr;
        }
    }

    private function checkSignature($signature,$timestamp,$nonce)
    {
        // you must define TOKEN by yourself
        $token = Yii::$app->params[&#39;wechat&#39;][&#39;token&#39;];
        if (!$token) {
            echo &#39;TOKEN is not defined!&#39;;
        } else {
            $tmpArr = array($token, $timestamp, $nonce);
            // use SORT_STRING rule
            sort($tmpArr, SORT_STRING);
            $tmpStr = implode( $tmpArr );
            $tmpStr = sha1( $tmpStr );

            if( $tmpStr == $signature ){
                return true;
            }else{
                return false;
            }
        }
    }

}

WeChat公式アカウントのバックグラウンドでURLとトークンを設(shè)定し、検証のために送信します。

URL:http://app.demo.com/wechats/valid
Token:your token

ユーザー情報(bào)の取得

ユーザーテーブルの設(shè)計(jì)

CREATE TABLE `wechat_user` (
  `id` int(11) NOT NULL,
  `openid` varchar(255) COLLATE utf8_unicode_ci NOT NULL,
  `nickname` varchar(50) COLLATE utf8_unicode_ci NOT NULL COMMENT '微信昵稱',
  `sex` tinyint(4) NOT NULL COMMENT '性別',
  `headimgurl` varchar(255) COLLATE utf8_unicode_ci NOT NULL COMMENT '頭像',
  `country` varchar(50) COLLATE utf8_unicode_ci NOT NULL COMMENT '國家',
  `province` varchar(50) COLLATE utf8_unicode_ci NOT NULL COMMENT '省份',
  `city` varchar(50) COLLATE utf8_unicode_ci NOT NULL COMMENT '城市',
  `access_token` varchar(255) COLLATE utf8_unicode_ci NOT NULL,
  `refresh_token` varchar(255) COLLATE utf8_unicode_ci NOT NULL,
  `created_at` timestamp NULL DEFAULT CURRENT_TIMESTAMP
) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;

ALTER TABLE `wechat_user`
  ADD PRIMARY KEY (`id`);

ユーザー情報(bào)を取得するための関連インターフェース

1. ユーザー認(rèn)証インターフェース: access_token、openid などを取得し、データベースに保存します。 WeChat 情報(bào)からユーザーを取得

public function actionAccesstoken()
{
    $code = $_GET["code"];
    $state = $_GET["state"];
    $appid = Yii::$app->params['wechat']['appid'];
    $appsecret = Yii::$app->params['wechat']['appsecret'];
    $request_url = 'https://api.weixin.qq.com/sns/oauth2/access_token?appid='.$appid.'&secret='.$appsecret.'&code='.$code.'&grant_type=authorization_code';

    //初始化一個(gè)curl會(huì)話
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $request_url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    $result = curl_exec($ch);
    curl_close($ch);
    $result = $this->response($result);

    //獲取token和openid成功，數(shù)據(jù)解析
    $access_token = $result['access_token'];
    $refresh_token = $result['refresh_token'];
    $openid = $result['openid'];

    //請(qǐng)求微信接口，獲取用戶信息
    $userInfo = $this->getUserInfo($access_token,$openid);
    $user_check = WechatUser::find()->where(['openid'=>$openid])->one();
    if ($user_check) {
        //更新用戶資料
    } else {
        //保存用戶資料
    }

    //前端網(wǎng)頁的重定向
    if ($openid) {
        return $this->redirect($state.$openid);
    } else {
        return $this->redirect($state);
    }
}

3. ユーザー情報(bào)インターフェイスを取得

public function getUserInfo($access_token,$openid)
{
    $request_url = 'https://api.weixin.qq.com/sns/userinfo?access_token='.$access_token.'&openid='.$openid.'&lang=zh_CN';
    //初始化一個(gè)curl會(huì)話
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $request_url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    $result = curl_exec($ch);
    curl_close($ch);
    $result = $this->response($result);
    return $result;
}

WeChat 支払い

public function actionUserinfo()
{
    if(isset($_REQUEST["openid"])){
        $openid = $_REQUEST["openid"];
        $user = WechatUser::find()->where(['openid'=>$openid])->one();
        if ($user) {
            $result['error'] = 0;
            $result['msg'] = '獲取成功';
            $result['user'] = $user;
        } else {
            $result['error'] = 1;
            $result['msg'] = '沒有該用戶';
        }
    } else {
        $result['error'] = 1;
        $result['msg'] = 'openid為空';
    }
    return $result;
}

public function actionPay(){
    if(isset($_REQUEST["uid"])&&isset($_REQUEST["oid"])&&isset($_REQUEST["totalFee"])){
        //uid、oid、totalFee
        $uid = $_REQUEST["uid"];
        $oid = $_REQUEST["oid"];
        $totalFee = $_REQUEST["totalFee"];
        $timestamp = time();

        //微信支付參數(shù)
        $appid = Yii::$app->params['wechat']['appid'];
        $mchid = Yii::$app->params['wechat']['mchid'];
        $key = Yii::$app->params['wechat']['key'];
        $notifyUrl = Yii::$app->params['wechat']['notifyUrl'];

        //支付打包
        $wx_pay = new WechatPay($mchid, $appid, $key);
        $package = $wx_pay->createJsBizPackage($uid, $totalFee, $oid, $notifyUrl, $timestamp);
        $result['error'] = 0;
        $result['msg'] = '支付打包成功';
        $result['package'] = $package;
        return $result;
    }else{
        $result['error'] = 1;
        $result['msg'] = '請(qǐng)求參數(shù)錯(cuò)誤';
    }
    return $result;
}

Android

public function actionNotify(){
    $postStr = $GLOBALS["HTTP_RAW_POST_DATA"];
    $postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);
    //
    if ($postObj === false) {
        die('parse xml error');
    }
    if ($postObj->return_code != 'SUCCESS') {
        die($postObj->return_msg);
    }
    if ($postObj->result_code != 'SUCCESS') {
        die($postObj->err_code);
    }

    //微信支付參數(shù)
    $appid = Yii::$app->params['wechat']['appid'];
    $mchid = Yii::$app->params['wechat']['mchid'];
    $key = Yii::$app->params['wechat']['key'];
    $wx_pay = new WechatPay($mchid, $appid, $key);

    //驗(yàn)證簽名
    $arr = (array)$postObj;
    unset($arr['sign']);
    if ($wx_pay->getSign($arr, $key) != $postObj->sign) {
        die("簽名錯(cuò)誤");
    }

    //支付處理正確-判斷是否已處理過支付狀態(tài)
    $orders = Order::find()->where(['uid'=>$postObj->openid, 'oid'=>$postObj->out_trade_no, 'status' => 0])->all();

    if(count($orders) > 0){
        //更新訂單狀態(tài)
        foreach ($orders as $order) {
            //更新訂單
            $order['status'] = 1;
            $order->update();
        }
        return &#39;<xml><return_code><![CDATA[SUCCESS]]></return_code><return_msg><![CDATA[OK]]></return_msg></xml>&#39;;
    } else {
        //訂單狀態(tài)已更新，直接返回
        return &#39;<xml><return_code><![CDATA[SUCCESS]]></return_code><return_msg><![CDATA[OK]]></return_msg></xml>&#39;;
    }
}

<?php

namespace api\sdk;

use Yii;

class WechatPay
{
    protected $mchid;
    protected $appid;
    protected $key;

    public function construct($mchid, $appid, $key){
        $this->mchid = $mchid;
        $this->appid = $appid;
        $this->key = $key;
    }

    public function createJsBizPackage($openid, $totalFee, $outTradeNo, $orderName, $notifyUrl, $timestamp){
        $config = array(
            &#39;mch_id&#39; => $this->mchid,
            &#39;appid&#39; => $this->appid,
            &#39;key&#39; => $this->key,
        );
        $unified = array(
            &#39;appid&#39; => $config[&#39;appid&#39;],
            &#39;attach&#39; => &#39;支付&#39;,
            &#39;body&#39; => $orderName,
            &#39;mch_id&#39; => $config[&#39;mch_id&#39;],
            &#39;nonce_str&#39; => self::createNonceStr(),
            &#39;notify_url&#39; => $notifyUrl,
            &#39;openid&#39; => $openid,
            &#39;out_trade_no&#39; => $outTradeNo,
            &#39;spbill_create_ip&#39; => &#39;127.0.0.1&#39;,
            &#39;total_fee&#39; => intval($totalFee * 100),
            &#39;trade_type&#39; => &#39;JSAPI&#39;,
        );
        $unified[&#39;sign&#39;] = self::getSign($unified, $config[&#39;key&#39;]);
        $responseXml = self::curlPost(&#39;https://api.mch.weixin.qq.com/pay/unifiedorder&#39;, self::arrayToXml($unified));
        $unifiedOrder = simplexml_load_string($responseXml, &#39;SimpleXMLElement&#39;, LIBXML_NOCDATA);
        if ($unifiedOrder === false) {
            die(&#39;parse xml error&#39;);
        }
        if ($unifiedOrder->return_code != &#39;SUCCESS&#39;) {
            die($unifiedOrder->return_msg);
        }
        if ($unifiedOrder->result_code != &#39;SUCCESS&#39;) {
            die($unifiedOrder->err_code);
        }
        $arr = array(
            "appId" => $config[&#39;appid&#39;],
            "timeStamp" => $timestamp,
            "nonceStr" => self::createNonceStr(),
            "package" => "prepay_id=" . $unifiedOrder->prepay_id,
            "signType" => &#39;MD5&#39;,
        );
        $arr[&#39;paySign&#39;] = self::getSign($arr, $config[&#39;key&#39;]);
        return $arr;
    }

    public static function curlGet($url = &#39;&#39;, $options = array()){
        $ch = curl_init($url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_TIMEOUT, 30);
        if (!empty($options)) {
            curl_setopt_array($ch, $options);
        }
        //https請(qǐng)求 不驗(yàn)證證書和host
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
        $data = curl_exec($ch);
        curl_close($ch);
        return $data;
    }


    public static function curlPost($url = &#39;&#39;, $postData = &#39;&#39;, $options = array()){
        if (is_array($postData)) {
            $postData = http_build_query($postData);
        }
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $postData);
        curl_setopt($ch, CURLOPT_TIMEOUT, 30); //設(shè)置cURL允許執(zhí)行的最長秒數(shù)
        if (!empty($options)) {
            curl_setopt_array($ch, $options);
        }
        //https請(qǐng)求 不驗(yàn)證證書和host
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
        $data = curl_exec($ch);
        curl_close($ch);
        return $data;
    }

    public static function createNonceStr($length = 16){
        $chars = &#39;abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789&#39;;
        $str = &#39;&#39;;
        for ($i = 0; $i<$length; $i++){
            $str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);
        }
        return $str;
    }

    public static function arrayToXml($arr){
        $xml = "<xml>";
        foreach ($arr as $key => $val){
            if (is_numeric($val)) {
                $xml .= "<" . $key . ">" . $val . "</" . $key . ">";
            } else {
                $xml .= "<" . $key . "><![CDATA[" . $val . "]]></" . $key . ">";
            }
        }
        $xml .= "</xml>";
        return $xml;
    }

    public static function getSign($params, $key){
        ksort($params, SORT_STRING);
        $unSignParaString = self::formatQueryParaMap($params, false);
        $signStr = strtoupper(md5($unSignParaString . "&key=" . $key));
        return $signStr;
    }

    protected static function formatQueryParaMap($paraMap, $urlEncode = false){
        $buff = "";
        ksort($paraMap);
        foreach ($paraMap as $k => $v){
            if (null != $v && "null" != $v) {
                if ($urlEncode) {
                    $v = urlencode($v);
                }
                $buff .= $k . "=" . $v . "&";
            }
        }
        $reqPar = &#39;&#39;;
        if (strlen($buff)>0) {
            $reqPar = substr($buff, 0, strlen($buff) - 1);
        }
        return $reqPar;
    }

}

wx.config({
    debug: true, // 開啟調(diào)試模式,調(diào)用的所有api的返回值會(huì)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(huì)通過log打出，僅在pc端時(shí)才會(huì)打印。
    appId: '', // 必填，公眾號(hào)的唯一標(biāo)識(shí)
    timestamp: , // 必填，生成簽名的時(shí)間戳
    nonceStr: '', // 必填，生成簽名的隨機(jī)串
    signature: '',// 必填，簽名，見附錄1
    jsApiList: [] // 必填，需要使用的JS接口列表，所有JS接口列表見附錄2
});

以上がYii2.0 は WeChat 公開アカウントのバックエンド開発を?qū)g裝しますの詳細(xì)內(nèi)容です。詳細(xì)については、PHP 中國語 Web サイトの他の関連記事を參照してください。