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利用Yii2微信後台開發的詳細介紹

高洛峰
高洛峰原創
2017-03-19 18:07:021406瀏覽

Yii2是一個高效能，基於元件的 PHP 框架，這篇文章詳細的給大家介紹了利用Yii2開發微信後台。我們一起來看看。

網路上有很多關於YII2.0微信開發教程，但是太過複雜凌亂，所以今天在這裡給大家整理總結利用Yii2微信後台開發的系列了，給需要的小伙伴們參考。

一：存取微信

#Yii2後台設定

##1.在在app/config/params.php中設定token參數


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

2.在app/config/main.php中設定路由

因為介面模組使用的RESTful API，所以需要定義路由規則。 


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

3.在app/controllers中新建WechatController


<?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;
  }
 }
 }

}

微信公眾號後台設定


在微信公眾號後台設定URL和Token，然後提交驗證即可。 

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

二：取得使用者資訊

使用者表設計

 程式碼如下:

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 &#39;微信昵称&#39;,
  `sex` tinyint(4) NOT NULL COMMENT &#39;性别&#39;,
  `headimgurl` varchar(255) COLLATE utf8_unicode_ci NOT NULL COMMENT &#39;头像&#39;,
  `country` varchar(50) COLLATE utf8_unicode_ci NOT NULL COMMENT &#39;国家&#39;,
  `province` varchar(50) COLLATE utf8_unicode_ci NOT NULL COMMENT &#39;省份&#39;,
  `city` varchar(50) COLLATE utf8_unicode_ci NOT NULL COMMENT &#39;城市&#39;,
  `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`);

取得使用者資訊的相關介面

#1.使用者授權介面：取得access_token、openId等；取得並儲存使用者資料到資料庫


程式碼如下:


public function actionAccesstoken()
{
    $code = $_GET["code"];
    $state = $_GET["state"];
    $appid = Yii::$app->params[&#39;wechat&#39;][&#39;appid&#39;];
    $appsecret = Yii::$app->params[&#39;wechat&#39;][&#39;appsecret&#39;];
    $request_url = &#39;https://api.weixin.qq.com/sns/oauth2/access_token?appid=&#39;.$appid.&#39;&secret=&#39;.$appsecret.&#39;&code=&#39;.$code.&#39;&grant_type=authorization_code&#39;;
    //初始化一个curl会话
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $request_url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    $result = curl_exec($ch);
    curl_close($ch);
    $result = $this->response($result);
    //获取token和openid成功，数据解析
    $access_token = $result[&#39;access_token&#39;];
    $refresh_token = $result[&#39;refresh_token&#39;];
    $openid = $result[&#39;openid&#39;];
    //请求微信接口，获取用户信息
    $userInfo = $this->getUserInfo($access_token,$openid);
    $user_check = WechatUser::find()->where([&#39;openid&#39;=>$openid])->one();
    if ($user_check) {
        //更新用户资料
    } else {
        //保存用户资料
    }
    //前端网页的重定向
    if ($openid) {
        return $this->redirect($state.$openid);
    } else {
        return $this->redirect($state);
    }
}

2.從微信取得使用者資料


 程式碼如下:


public function getUserInfo($access_token,$openid)
{
    $request_url = &#39;https://api.weixin.qq.com/sns/userinfo?access_token=&#39;.$access_token.&#39;&openid=&#39;.$openid.&#39;&lang=zh_CN&#39;;
    //初始化一个curl会话
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $request_url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    $result = curl_exec($ch);
    curl_close($ch);
    $result = $this->response($result);
    return $result;
}

3 .取得使用者資料介面

public function actionUserinfo()
{
 if(isset($_REQUEST["openid"])){
  $openid = $_REQUEST["openid"];
  $user = WechatUser::find()->where([&#39;openid&#39;=>$openid])->one();
  if ($user) {
   $result[&#39;error&#39;] = 0;
   $result[&#39;msg&#39;] = &#39;获取成功&#39;;
   $result[&#39;user&#39;] = $user;
  } else {
   $result[&#39;error&#39;] = 1;
   $result[&#39;msg&#39;] = &#39;没有该用户&#39;;
  }
 } else {
  $result[&#39;error&#39;] = 1;
  $result[&#39;msg&#39;] = &#39;openid为空&#39;;
 }
 return $result;
}

 

#三：微信支付

1 .微信支付介面：打包支付資料


程式碼如下：


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();
        //微信支付参数
        $appid = Yii::$app->params[&#39;wechat&#39;][&#39;appid&#39;];
        $mchid = Yii::$app->params[&#39;wechat&#39;][&#39;mchid&#39;];
        $key = Yii::$app->params[&#39;wechat&#39;][&#39;key&#39;];
        $notifyUrl = Yii::$app->params[&#39;wechat&#39;][&#39;notifyUrl&#39;];
        //支付打包
        $wx_pay = new WechatPay($mchid, $appid, $key);
        $package = $wx_pay->createJsBizPackage($uid, $totalFee, $oid, $notifyUrl, $timestamp);
        $result[&#39;error&#39;] = 0;
        $result[&#39;msg&#39;] = &#39;支付打包成功&#39;;
        $result[&#39;package&#39;] = $package;
        return $result;
    }else{
        $result[&#39;error&#39;] = 1;
        $result[&#39;msg&#39;] = &#39;请求参数错误&#39;;
    }
    return $result;
}

2.接收微信發送的非同步支付結果通知


代碼如下:


public function actionNotify(){
    $postStr = $GLOBALS["HTTP_RAW_POST_DATA"];
    $postObj = simplexml_load_string($postStr, &#39;SimpleXMLElement&#39;, LIBXML_NOCDATA);
    //
    if ($postObj === false) {
        die(&#39;parse xml error&#39;);
    }
    if ($postObj->return_code != &#39;SUCCESS&#39;) {
        die($postObj->return_msg);
    }
    if ($postObj->result_code != &#39;SUCCESS&#39;) {
        die($postObj->err_code);
    }
    //微信支付参数
    $appid = Yii::$app->params[&#39;wechat&#39;][&#39;appid&#39;];
    $mchid = Yii::$app->params[&#39;wechat&#39;][&#39;mchid&#39;];
    $key = Yii::$app->params[&#39;wechat&#39;][&#39;key&#39;];
    $wx_pay = new WechatPay($mchid, $appid, $key);
    //验证签名
    $arr = (array)$postObj;
    unset($arr[&#39;sign&#39;]);
    if ($wx_pay->getSign($arr, $key) != $postObj->sign) {
        die("签名错误");
    }
    //支付处理正确-判断是否已处理过支付状态
    $orders = Order::find()->where([&#39;uid&#39;=>$postObj->openid, &#39;oid&#39;=>$postObj->out_trade_no, &#39;status&#39; => 0])->all();
    if(count($orders) > 0){
        //更新订单状态
        foreach ($orders as $order) {
            //更新订单
            $order[&#39;status&#39;] = 1;
            $order->update();
        }
        return &#39;<xml><return_code><![CDATA[SUCCESS]]></return_code><return_msg><![CDATA[OK]]></return_msg></xml>&#39;;
    } else {
        //订单状态已更新，直接返回
        return &#39;<xml><return_code><![CDATA[SUCCESS]]></return_code><return_msg><![CDATA[OK]]></return_msg></xml>&#39;;
    }
}

3.微信支付類別WechatPay.php


#程式碼如下:

##

<?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, $options);
        }
        //https请求 不验证证书和host
        curl_setopt($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); //设置cURL允许执行的最长秒数
        if (!empty($options)) {
            curl_setopt_array($ch, $options);
        }
        //https请求 不验证证书和host
        curl_setopt($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;
    }
}

四：取得JS- SDK的config參數


根據微信公眾平台開發者文件：

#所有需要使用JS-SDK的頁面必須先註入配置訊息，否則將無法呼叫（同一個url只需呼叫一次，對於變化url的SPA的web app可在每次url變化時進行調用,目前Android微信客戶端不支援pushState的H5新特性，所以使用pushState來實現web app的頁面會導致簽名失敗，此問題會在Android6.2中修復）。

即：


程式碼如下：

wx.config({
    debug: true, // 开启调试模式,调用的所有api的返回值会在客户端alert出来，若要查看传入的参数，可以在pc端打开，参数信息会通过log打出，仅在pc端时才会打印。
    appId: &#39;&#39;, // 必填，公众号的唯一标识
    timestamp: , // 必填，生成签名的时间戳
    nonceStr: &#39;&#39;, // 必填，生成签名的随机串
    signature: &#39;&#39;,// 必填，签名，见附录1
    jsApiList: [] // 必填，需要使用的JS接口列表，所有JS接口列表见附录2
});

1.微信支付類別WechatPay.php

 程式碼如下:

<?php
namespace api\sdk;
use Yii;
class WechatPay
{
    public function getSignPackage($url) {
        $jsapiTicket = self::getJsApiTicket();
        $timestamp = time();
        $nonceStr = self::createNonceStr();
        // 这里参数的顺序要按照 key 值 ASCII 码升序排序
        $string = "jsapi_ticket=".$jsapiTicket."&noncestr=".$nonceStr."&timestamp=".$timestamp."&url=".$url;
        $signature = sha1($string);
        $signPackage = array(
            "appId"     => $this->appid,
            "nonceStr"  => $nonceStr,
            "timestamp" => $timestamp,
            "url"       => $url,
            "signature" => $signature,
            "rawString" => $string
        );
        return $signPackage;
    }
    public static function getJsApiTicket() {
        //使用Redis缓存 jsapi_ticket
        $redis = Yii::$app->redis;
        $redis_ticket = $redis->get(&#39;wechat:jsapi_ticket&#39;);
        if ($redis_ticket) {
            $ticket = $redis_ticket;
        } else {
            $accessToken = self::getAccessToken();
            $url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?type=jsapi&access_token=".$accessToken;
            $res = json_decode(self::curlGet($url));
            $ticket = $res->ticket;
            if ($ticket) {
                $redis->set(&#39;wechat:jsapi_ticket&#39;, $ticket);
                $redis->expire(&#39;wechat:jsapi_ticket&#39;, 7000);
            }
        }
        return $ticket;
    }
    public static function getAccessToken() {
        //使用Redis缓存 access_token
        $redis = Yii::$app->redis;
        $redis_token = $redis->get(&#39;wechat:access_token&#39;);
        if ($redis_token) {
            $access_token = $redis_token;
        } else {
            $appid = Yii::$app->params[&#39;wechat&#39;][&#39;appid&#39;];
            $appsecret = Yii::$app->params[&#39;wechat&#39;][&#39;appsecret&#39;];
            $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=".$appid."&secret=".$appsecret;
            $res = json_decode(self::curlGet($url));
            $access_token = $res->access_token;
            if ($access_token) {
                $redis->set(&#39;wechat:access_token&#39;, $access_token);
                $redis->expire(&#39;wechat:access_token&#39;, 7000);
            }
        }
        return $access_token;
    }
    public static function curlGet($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, $options);
        }
        //https请求 不验证证书和host
        curl_setopt($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); //设置cURL允许执行的最长秒数
        if (!empty($options)) {
            curl_setopt_array($ch, $options);
        }
        //https请求 不验证证书和host
        curl_setopt($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;
    }
}

2.取得config參數介面


public function actionConfig(){
 if (isset($_REQUEST[&#39;url&#39;])) {
 $url = $_REQUEST[&#39;url&#39;];
 //微信支付参数
 $appid = Yii::$app->params[&#39;wechat&#39;][&#39;appid&#39;];
 $mchid = Yii::$app->params[&#39;wechat&#39;][&#39;mchid&#39;];
 $key = Yii::$app->params[&#39;wechat&#39;][&#39;key&#39;];
 $wx_pay = new WechatPay($mchid, $appid, $key);
 $package = $wx_pay->getSignPackage($url);
 $result[&#39;error&#39;] = 0;
 $result[&#39;msg&#39;] = &#39;获取成功&#39;;
 $result[&#39;config&#39;] = $package;
 } else {
 $result[&#39;error&#39;] = 1;
 $result[&#39;msg&#39;] = &#39;参数错误&#39;;
 }
 return $result;
}

以上是利用Yii2微信後台開發的詳細介紹的詳細內容。更多資訊請關注PHP中文網其他相關文章！

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