完美利用Yii2微信后台开发的系列总结

　　网上有很多关于YII2.0微信开发教程，但是太过复杂凌乱，所以今天在这里给大家整理总结利用Yii2微信后台开发的系列了，给需要的小伙伴们参考。

　　一：接入微信

　　Yii2后台配置

　　1.在app/config/params.php中配置token参数

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

　　2.在app/config/main.php中配置路由

　　因为接口模块使用的RESTful API，所以需要定义路由规则。

　　 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 = ; 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[wechat][token]; if (!$token) { echo TOKEN is not defined!; } 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; } } } }

　　微信公众号后台配置

　　在微信公众号后台配置URL和Token，然后提交验证即可。

　　 URL:

　　二：获取用户信息

　　用户表设计

　　复制代码 代码如下:
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 微信昵称,
`sex` tinyint(4) NOT NULL COMMENT 性别,
`headimgurl` varchar(255) COLLATE utf8_unicode_ci NOT NULL COMMENT 头像,
`country` varchar(50) COLLATE utf8_unicode_ci NOT NULL COMMENT 国家,
`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`);

　　获取用户信息的相关接口

　　1.用户授权接口：获取access_token、openId等；获取并保存用户资料到数据库

　　复制代码 代码如下:
public function actionAccesstoken()
{
$code = $_GET[code];
$state = $_GET[state];
$appid = Yii::$app->params[wechat][appid];
$appsecret = Yii::$app->params[wechat][appsecret];
$request_url =
//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[access_token];
$refresh_token = $result[refresh_token];
$openid = $result[openid];
//请求微信接口，获取用户信息
$userInfo = $this->getUserInfo($access_token,$openid);
$user_check = WechatUser::find()->where([openid=>$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.从微信获取用户资料

　　复制代码 代码如下:
public function getUserInfo($access_token,$openid)
{
$request_url =
//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.获取用户资料接口

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

　　三：微信支付

　　1.微信支付接口：打包支付数据

　　复制代码 代码如下:
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[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] = 请求参数错误;
}
return $result;
}

　　2.接收微信发送的异步支付结果通知

　　复制代码 代码如下:
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);
}
//微信支付参数
$appid = Yii::$app->params[wechat][appid];
$mchid = Yii::$app->params[wechat][mchid];
$key = Yii::$app->params[wechat][key];
$wx_pay = new WechatPay($mchid, $appid, $key);
//验证签名
$arr = (array)$postObj;
unset($arr[sign]);
if ($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
$orders = Order::find()->where([uid=>$postObj->openid, oid=>$postObj->out_trade_no, status => 0])->all();
if(count($orders) > 0){
//更新订单状态
foreach ($orders as $order) {
//更新订单
$order[status] = 1;
$order->update();
}
return <xml><return_code><![CDATA[SUCCESS]]></return_code><return_msg><![CDATA[OK]]></return_msg></xml>;
} else {
//订单状态已更新，直接返回
return <xml><return_code><![CDATA[SUCCESS]]></return_code><return_msg><![CDATA[OK]]></return_msg></xml>;
}
}

　　3.微信支付类 WechatPay.php

　　复制代码 代码如下:
<?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(
mch_id => $this->mchid,
appid => $this->appid,
key => $this->key,
);
$unified = array(
appid => $config[appid],
attach => 支付,
body => $orderName,
mch_id => $config[mch_id],
nonce_str => self::createNonceStr(),
notify_url => $notifyUrl,
openid => $openid,
out_trade_no => $outTradeNo,
spbill_create_ip => 127.0.0.1,
total_fee => intval($totalFee * 100),
trade_type => JSAPI,
);
$unified[sign] = self::getSign($unified, $config[key]);
$responseXml = self::curlPost(
$unifiedOrder = simplexml_load_string($responseXml, SimpleXMLElement, LIBXML_NOCDATA);
if ($unifiedOrder === false) {
die(parse xml error);
}
if ($unifiedOrder->return_code != SUCCESS) {
die($unifiedOrder->return_msg);
}
if ($unifiedOrder->result_code != SUCCESS) {
die($unifiedOrder->err_code);
}
$arr = array(
appId => $config[appid],
timeStamp => $timestamp,
nonceStr => self::createNonceStr(),
package => prepay_id= . $unifiedOrder->prepay_id,
signType => MD5,
);
$arr[paySign] = self::getSign($arr, $config[key]);
return $arr;
}
public static function curlGet($url = , $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 = , $postData = , $options = array()){
if (is_array($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 = abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789;
$str = ;
for ($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 . &;
}
}
$reqPar = ;
if (strlen($buff)>0) {
$reqPar = substr($buff, 0, strlen($buff) - 1);
}
return $reqPar;
}
}

　　四：获取JS-SDK的config参数

　　根据微信公众平台开发者文档：

　　所有需要使用JS-SDK的页面必须先注入配置信息，否则将无法调用（同一个url仅需调用一次，对于变化url的SPA的web app可在每次url变化时进行调用,目前Android微信客户端不支持pushState的H5新特性，所以使用pushState来实现web app的页面会导致签名失败，此问题会在Android6.2中修复）。

　　即：

　　复制代码 代码如下:
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: , // 必填，公众号的唯一标识
timestamp: , // 必填，生成签名的时间戳
nonceStr: , // 必填，生成签名的随机串
signature: ,// 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.微信支付类 WechatPay.php

　　复制代码 代码如下:
<?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 = $redis->get(wechat:jsapi_ticket);
if ($redis_ticket) {
$ticket = $redis_ticket;
} else {
$accessToken = self::getAccessToken();
$url =
$res = json_decode(self::curlGet($url));
$ticket = $res->ticket;
if ($ticket) {
$redis->set(wechat:jsapi_ticket, $ticket);
$redis->expire(wechat:jsapi_ticket, 7000);
}
}
return $ticket;
}
public static function getAccessToken() {
//使用Redis缓存 access_token
$redis = Yii::$app->redis;
$redis_token = $redis->get(wechat:access_token);
if ($redis_token) {
$access_token = $redis_token;
} else {
$appid = Yii::$app->params[wechat][appid];
$appsecret = Yii::$app->params[wechat][appsecret];
$url =
$res = json_decode(self::curlGet($url));
$access_token = $res->access_token;
if ($access_token) {
$redis->set(wechat:access_token, $access_token);
$redis->expire(wechat:access_token, 7000);
}
}
return $access_token;
}
public static function curlGet($url = , $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 = , $postData = , $options = array()){
if (is_array($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 = abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789;
$str = ;
for ($i = 0; $i<$length; $i++){
$str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);
}
return $str;
}
}

　　2.获取config参数接口

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

　　以上就是利用Yii2微信后台开发全部过程及示例代码，希望本文对大家基于php的微信公众平台开发有所帮助。