微信大全微信支付微信登录小程序PC公众号-即速应用

PC网站微信登录：

参考文档：https://open.weixin.qq.com/cgi-bin/showdocument?action=dir_list&t=resource/res_list&verify=1&id=open1419316518&token=&lang=zh_CN

流程：

1 第一步：用户同意授权，获取code

2 第二步：通过code换取网页授权access_token

3 第三步：刷新access_token（如果需要）

4 第四步：拉取用户信息(需scope为 snsapi_userinfo)

5 附：检验授权凭证（access_token）是否有效

所需材料：

1、在开放平台申请开发者认证。

2、认证通过后创建网站应用

3、拿到所需APPID相关信息开发需要用到。

网址：https://open.weixin.qq.com/cgi-bin/index?t=home/index&lang=zh_CN

代码：

html代码：

<!-- KDT获取 --><meta name="Keywords" content="{$key}"/><meta name="Description" content="{$des}"/><title>登录</title><link rel="stylesheet" href="{:config('home_file')}css/simple.css"><!-- 引入公共头部 -->{include file="public:header" /}<section class="login"><div class="container"><div class="con"><div class="text"></div><div class="box"><ul class="clearfix"><li class="on" οnclick="tab(1)"><i class="wx"></i>微信登录</li><li οnclick="tab(2)"><i class="ph"></i>手机登录</li></ul><div class="wx-con"><div id="Wechat_img"></div></div><div class="ph-con"><form action="__URL__/sign_handle" method="post" name="login"><div class="list"><input type="text" placeholder="手机号：" name="mobile" class="mobile" required="required"/></div><div class="list clearfix"><input type="text" placeholder="图形验证码：" name="capimg" class="capimg" required="required" /><img src="__URL__/show_captcha" id="capimg"/></div><div class="list clearfix"><input type="text" placeholder="短信验证码：" name="sms" class="sms" required="required" pattern='^w{4,6}$'/><button type="button" class="getsms" data-action="login">获取</button></div><div class="list"><input type="submit" value="登录" οnclick="return checkform()"/></div></form></div></div></div></div></section><script type="text/javascript" src="{:config('home_file')}js/simple.js"></script><script type="text/javascript" src="https://res.wx.qq.com/connect/zh_CN/htmledition/js/wxLogin.js"></script><script>var obj = new WxLogin({ self_redirect:false, id:"Wechat_img",  appid: "{$appid}",  scope: "snsapi_login",  redirect_uri: "{$redirect_uri}", state: "", style: "", href: "https://www.yx685.com/public/static/home/css/wx_login.css"});$(".moveup").on('click',function(){          $('html,body').animate({scrollTop: '0px'}, 300);    });</script>

PHP代码：

public function login(){if(input('?get.url')){session('login_return_url',input('get.url'));}$wechat = new Wechat();$this->assign('appid',$wechat->appid);$this->assign('redirect_uri',urlencode('http://www.yx685.com/home/simple/code_redirect_uri'));if(input('?get.type') && input('get.type') == 'code'){$wechat = new Wechat();$get_code = $wechat->get_code();header('location:'.$get_code);exit;}        return $this->fetch();}public function code_redirect_uri(){$wechat = new Wechat();$code = input('get.code');$access_res = $wechat->get_access_token($code);$access_arr = array();$access_arr = json_decode($access_res,true);if(isset($access_arr['errcode'])){$this->error('获取凭证失败，请返回上级页面重新登录');}//检测access_token$check_res = $wechat->check_access($access_arr['access_token'],$access_arr['openid']);$check_arr = json_decode($check_res,true);if($check_arr['errcode'] != 0){//刷新凭证$access_res = $wechat->refresh_token($access_arr['refresh_token']);//销毁上一个access_token重新声明$access_arr = array();$access_arr = json_decode($access_res,true);}//获取用户信息$user_info_res = $wechat->get_user_info($access_arr['access_token'],$access_arr['openid']);$user_info_arr = json_decode($user_info_res,true);if(isset($user_info_arr['errcode'])){$this->error('获取用户信息失败，请返回上级页面重新登录');}else{$user = db('member')->field('id,phone')->where('unionid',$user_info_arr['unionid'])->find();if($user['id']){session('user_id',$user['id']);session('user_name',$username);//pc端openid不存在就更新if(!db('member')->where('id',$user['id'])->value('open_id')){$update_res = db('member')->where('id',$user['id'])->update(['open_id' => $user_info_arr['openid']]);} if(!empty($user['phone'])){login_log($user['id'],1);//PC微信登录$url = session('login_return_url') ? session('login_return_url') : '/member/ucenter/index';$this->success('微信登录成功',$url);}else{$this->redirect('/home/simple/bind');}}else{$password = md5('000000');$data = array();$data['open_id'] = $user_info_arr['openid'];$data['user_name'] = $user_info_arr['nickname'];$data['user_pass'] = $password;//$data['phone'] = $username;$data['add_time'] = time();$data['user_type'] = 1;$data['head_ico'] = $user_info_arr['headimgurl'];$data['unionid'] = $user_info_arr['unionid'];$data['login_type'] = 1;$user_id = db('member')->insertGetId($data);if($user_id){session('user_id',$user_id);session('user_name',$data['user_name']);if(!empty($user['phone'])){login_log($user_id,1);//PC微信登录$url = session('login_return_url') ? session('login_return_url') : '/member/ucenter/index';$this->success('微信登录成功',$url);}else{$this->redirect('/home/simple/bind');}}else{$this->error('数据异常，微信登录失败');}}}}//显示验证码public function show_captcha(){$captcha = new thinkcaptchaCaptcha();$captcha->expire = 180;//有效期$captcha->length = 3;//验证码位数$captcha->useZh = true;//使用中文验证码return $captcha->entry();}

所需SDK：

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PC网站微信支付

参考文档：https://pay.weixin.qq.com/wiki/doc/api/native.php?chapter=9_1

流程：

1、申请公众号必须是服务号，服务号登录地址（https://pay.weixin.qq.com/index.php/core/info）

2、拿到APPID相关信息写入到开发配置中。

3、下载微信官方微信支付SDK（网址：https://pay.weixin.qq.com/wiki/doc/api/native.php?chapter=11_1）

4、将微信支付SDK引入到自己项目中，我用的thinkphp5，所用到的文件如下图：

5、thinkphp5导入方式（import('WxPay.WxPayApi');）

6、thinkphp5调用方式（$input = new WxPayUnifiedOrder();），注意前面反斜杠必需。

7、注意交易类型是NATICE

代码：

html：

<!-- KDT获取 --><meta name="Keywords" content="{$key}"/><meta name="Description" content="{$des}"/><title>在线充值</title><link rel="stylesheet" href="{:config('home_file')}css/ucenter.css"><!-- 引入公共头部 -->{include file="public:header" /}<!--定位--><div class="ulocat"><span>当前位置：</span><a href="/home/index/index">首页</a><a href="/member/ucenter/index">个人中心</a><a href="/member/ucenter/recharge">在线充值</a></div><!--主体部分--><section class="main"><div class="container clearfix"><!--左侧--><div class="left"><dl><!--引入左侧-->{include file="public:left" /}</dl></div><!--右侧--><div class="right"><div class="box"><h4 class="tit">在线充值</h4><div class="rec clearfix">{volist name="$list" id="vo"}<dl class=""><dt><img src="{$vo.img_url}" alt="小程序"/><span class="bor" data-id="{$vo.id}"></span></dt><dd><p class="des">{$vo.describe}</p><p class="pri">{$vo.price}元</p></dd></dl>{/volist}</div><div class="rectice">在您支付前，请确保查看过<a href="/member/ucenter/retxt">《厚昌学院充值说明》</a></div></div><div class="box log"><h4 class="tit">充值记录</h4><table class="tabg"><colgroup><col width="580px" /><col width="150px" /><col width="208px" /></colgroup><thead><tr><th>类型</th><th>金额</th><th>充值状态</th><th width="231">日期</th></tr></thead><tbody>{volist name="charge_list" id="vo"}<tr><td>{$charge_type[$vo[type]]}</td><td><span class="add">{$vo.money}</span></td><td><span class="{$vo.status ? 'add' : 'cud'}">{$vo.status ? '充值成功' : '充值失败'}</span></td><td>{$vo.add_time|date="Y-m-d H:i:s",###}</td></tr>{/volist}</tbody></table></div></div></div></section><script>var ifid = 1;var timer;$(function(){$(".main .right .rec dl").each(function(i){var t = $(this);t.on('click',function(){t.addClass('on').siblings().removeClass('on');var obj = $(".main .right .rec dl.on .bor");if(obj.attr('data-id')){var url = "__URL__/wechat_pay?id="+obj.attr('data-id');layer.open({title: '微信支付',content: [url, 'no'],type: 2,area: ['500px', '400px'],offset: '250px',closeBtn: 2,shadeClose: true,cancel: function(index, layero){ifid++;clearInterval(timer);    return true; }  });timer = setInterval(function(){SelectOut()},2000);}else{layer.msg('您还没有选中任何商品呢', {icon: 2,offset: '250px'});}})});})function SelectOut() {var obj = "#layui-layer-iframe"+ifid+"";var out_trade_no = $(obj).contents().find("#out_trade_no").val();    $.get("__URL__/SelectOut?out_trade_no="+out_trade_no,function(d){if(d == 1){clearInterval(timer);window.location.href='/member/ucenter/recharge';}});}</script><!--引入公共底部-->{include file="public:footer"/}

PHP：

/* *微信支付-生成二维码链接*@author董强*/public function wechat_pay(){if(empty($_GET)) $this->error('数据异常');//$money = input('get.money/d') <= 0 || empty(input('get.money/d')) || input('?get.money/d') ? $this->error('充值金额异常') : input('get.money/d');$id = input('get.id/d') <= 0 ? $this->error('充值ID异常') : input('get.id/d');$money = db('goods')->field('price,describe,type_id')->where('id',$id)->find();//导入微信支付类库import('WxPay.WxPayApi');$wechat = new WxPayApi();//API类库$send_data = new WxPayUnifiedOrder();$notify = new NativePay();$send_data->SetBody($money['describe']);$send_data->SetAttach($money['describe']);$out_trade_no = WxPayConfig::MCHID.date("YmdHis");$send_data->SetOut_trade_no($out_trade_no);$send_data->SetTotal_fee(intval($money['price']*100));$send_data->SetTime_start(date("YmdHis"));$send_data->SetTime_expire(date("YmdHis", time() + 600));$send_data->SetNotify_url("https://www.***.com/home/Wxnotify/notify");$send_data->SetTrade_type("NATIVE");$send_data->SetProduct_id($id);$result = $notify->GetPayUrl($send_data);$type = $money['type_id'] == 2 || $money['type_id'] == 3 ? 2 : 1;//判断是否成功，本地增加充值记录if($result['return_code'] == 'SUCCESS' && $result['result_code'] == 'SUCCESS' && $result['return_msg'] == 'OK'){$db_res = db('wx_recharge')->insert(['uid' => $this->user_id,'money' => $money['price'],'out_trade_no' => $out_trade_no,'add_time' => time(),'goods_id' => $id,'type' => $type]);if(!$db_res) $this->error('本地数据异常');}else{$this->error('充值异常');}$url = $result["code_url"];$this->assign('url',urlencode($url));$this->assign('out_trade_no',urlencode($out_trade_no));return $this->fetch();}/* *微信支付-生成支付二维码*@author董强*@info二维码是直接输出所以必须是一个方法*/public function qrcode(){import('WxPay.WxPayApi');$url = urldecode(input('get.url'));QRcode::png($url);}/* *Ajax轮训查订单状态*@author 董强*/public function SelectOut(){$out_trade_no = input('get.out_trade_no');$result = db('wx_recharge')->where('out_trade_no',$out_trade_no)->value('status');return json($result);}

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小程序微信登录

参考文档：https://developers.weixin.qq.com/miniprogram/dev/api/api-login.html

流程：

1、申请小程序APPID，网址（https://mp.weixin.qq.com/）

2、获取APPID相关信息配置到项目中

3、调用小程序接口wx.login或者code传给服务端

4、服务端返回用户信息，将uid存入到本地缓存，作为用户登录状态的判断。

代码：

html：

<view class='container'>    <view class='box'>        <!-- tab头部 -->        <view class='navtop'>            <view class='tab {{nav == 0 ? "on" : ""}}' data-nav="0" bindtap='changetab'>                <image src='../../images/logwx-on.png' class='wx' wx:if="{{nav == 0}}"></image>                <image src='../../images/logwx.png' class='wx' wx:else></image>                <text>微信登录</text>            </view>            <view class='tab {{nav == 0 ? "" : "on"}}' data-nav="1" bindtap='changetab'>                <image src='../../images/logph-on.png' class='ph' wx:if="{{nav == 1}}"></image>                <image src='../../images/logph.png' class='ph' wx:else></image>                <text>手机登录</text>            </view>        </view>        <!-- tab主体 -->        <swiper bindchange='swiperchange' class='cont' current='{{nav}}'>            <swiper-item>                <button open-type="getUserInfo"  bindgetuserinfo="wxlogin" class='logbtn mt210'>一键登录</button>            </swiper-item>            <swiper-item>                <view class='list'>                    <input placeholder='手机号:' placeholder-class='place' value='{{phone}}' class='phone' bindinput='changetext' data-name='phone'></input>                </view>                <view class='list'>                    <input placeholder='短信验证码:' placeholder-class='place' value='{{sms}}' class='sms' bindinput='changetext' data-name='sms'></input>                    <button class='getsms' bindtap='getSms' disabled='{{disabled}}'>{{getsms}}</button>                </view>                <view class='logbtn mt68' bindtap='phlogin'>登录</view>            </swiper-item>        </swiper>    </view></view>

JS：

// pages/member/index.jsconst Util = require('../../utils/util.js')const Api = require('../../utils/api.js')const app = getApp()Page({    data: {        uid: '',        nav: 0,        phone: '',        sms: '',        time: 60,        getsms: '获取',        disabled: false    },    onLoad: function (options) {},    onShow: function () {},    // tab改变    changetab: function(e){        this.setData({            nav: e.currentTarget.dataset.nav        });    },    //tab底部切换效果    swiperchange: function (e) {        this.setData({            nav: e.detail.current        });    },    // 微信一键登录    wxlogin: function (e) {        if (e.detail.userInfo) {            wx.login({                success: res => {                    if (res.code) {                        wx.request({                            url: Api.wxlogin(),                            method: "POST",                            header: {                                "Content-Type": "application/x-www-form-urlencoded"                            },                            data: Api.json2Form({                                code: res.code,                                iv: e.detail.iv,                                encryptedData: e.detail.encryptedData,                            }),                            success: res => {                                if (res.data.status) {                                    //本地存储user_id和创建user_id时间戳                                    wx.setStorageSync('user_id', res.data.data.user_id);                                    wx.setStorageSync('user_time', new Date().getTime());                                    wx.showToast({                                        title: '登录成功',                                        icon: 'none',                                        duration: 2000                                    });                                    setTimeout(function () {                                        wx.reLaunch({ url: 'index', });                                    }, 2000);                                } else {                                    wx.showToast({                                        title: res.data.info,                                        icon: 'none',                                        duration: 2000                                    })                                }                            },                            fail: res => {                                console.log('微信登录发生错误', res);                            },                            complete: res => {                                console.log('微信登录状态反馈', res);                            }                        })                    }                }            });        } else {            console.log("用户拒绝授权");        }    },    // 输入框改变    changetext: function(e){        var that = this;        var k = e.target.dataset.name;        var v = e.detail.value;        switch (k){            case 'phone':                that.setData({ phone: v });                break;            case 'sms':                that.setData({ sms: v });                break;            default:                break;        }    },    // 获取手机验证码操作    getSms: function(){        var that = this;        var phone = that.data.phone;        if (!phone.match(/^(1(([3578][0-9])|(47)|[8][01236789]))d{8}$/)){            wx.showToast({                title: '手机号格式不正确',                icon: 'none',                duration: 2000            })        }else{            wx.request({                url: Api.sendsms(),                method: "POST",                header: {                    "Content-Type": "application/x-www-form-urlencoded"                },                data: Api.json2Form({                    phone: that.data.phone                }),                success: res => {                    wx.showToast({                        title: res.data.info,                        icon: 'none',                        duration: 2000                    });                     if (res.data.status) {                         //倒计时操作                        that.setTime();                    }                },                fail: res => {                    console.log('发生错误', res);                },                complete: res => {                    console.log('获取手机验证码状态反馈', res);                }            })        }    },    // 倒计时操作    setTime: function(){        var that = this;        if(that.data.time == 0){            that.setData({                time: 60,                disabled: false,                getsms: '获取'            });        }else{            that.setData({                getsms: that.data.time + 'S',                disabled: true,                time: that.data.time -1            });            setTimeout(function(){                that.setTime();            },1000);        }    },    //登录操作    phlogin: function(){        var that = this;        if (!that.data.phone.match(/^(1(([3578][0-9])|(47)|[8][01236789]))d{8}$/)) {            wx.showToast({                title: '手机号格式不正确',                icon: 'none',                duration: 2000            })        }else if(that.data.sms.length != 4){            wx.showToast({                title: '短信验证码格式不正确',                icon: 'none',                duration: 2000            });         }else{            wx.request({                url: Api.PhoneLogin(),                method: "POST",                header: {                    "Content-Type": "application/x-www-form-urlencoded"                },                data: Api.json2Form({                    mobile: that.data.phone,                    sms: that.data.sms,                }),                success: res => {                    if (res.data.status) {                        wx.setStorageSync('user_id', res.data.data.user_id);                        wx.setStorageSync('user_time', new Date().getTime());                        wx.showToast({                            title: '登录成功',                            icon: 'none',                            duration: 2000                        });                        setTimeout(function () {                            wx.reLaunch({ url: 'index', });                        }, 2000);                    }else{                        wx.showToast({                            title: res.data.info,                            icon: 'none',                            duration: 2000                        })                    }                },                fail: res => {                    console.log('发生错误', res);                },                complete: res => {                    console.log('状态反馈', res);                }            })        }    }})

服务端：

//微信登录 董强public function wxLogin(){$code = input('param.code');//获取code$iv = input('param.iv');//获取IV用于解密$encryptedData = input('param.encryptedData');//用户加密信息//通过code获取openid、session_key$url = 'https://api.weixin.qq.com/sns/jscode2session?appid='.$this->appid.'&secret='.$this->serect.'&js_code='.$code.'&grant_type=authorization_code';$res = file_get_contents($url);$jscode_res = json_decode($res,true);//解密用户信息并获取open_id、unionID、用户信息$wechat = new WxBizDataCrypt($this->appid,$jscode_res['session_key']);$errCode = $wechat->decryptData($encryptedData,$iv,$data);$heavy_data = $data;//引用值赋值给变量$en_res = json_decode($heavy_data,true);$user_id = db('member')->where('unionid',$en_res['unionId'])->value('id');if(!empty($user_id)){//判断该用户是否存在if(empty(db('member')->where('id',$user_id)->value('small_open_id'))){//判断该用户小程序openid不存在就写入if(!db('member')->where('unionid',$en_res['unionId'])->update(['small_open_id' => $en_res['openId']])) return $this->ReturnStatus(false,'小程序openid更新异常');}return  $this->ReturnStatus(true,'正常',array('user_id' => $user_id));}else{$data = array('small_open_id' => $en_res['openId'],'user_name' => $en_res['nickName'],'user_pass' => md5('000000'),'add_time' => time(),'user_type' => 1,'head_ico' => $en_res['avatarUrl'],'unionid' => $en_res['unionId'],'login_type' => 2,);$user_id = db('member')->insertGetId($data);login_log($user,3);//小程序微信一键登录if($user_id){return  $this->ReturnStatus(true,'新增用户正常',array('user_id' => $user_id));}else{return  $this->ReturnStatus(false,'新增用户异常',null);}}}

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小程序微信支付

参考文档：https://pay.weixin.qq.com/wiki/doc/api/wxa/wxa_api.php?chapter=9_1

流程：

1、申请小程序微信支付APPID，跟小程序微信登录是通用

2、把产品ID用户ID传给服务端

3、服务端处理产品信息并调用微信支付统一下单接口，预处理后判断返回状态是否成功，成功则本地存入预处理订单，但支付状态为未支付，注意交易类型参数必须是JSAPI，openid必传。

4、调用统一下单接口预处理之后拼接签名，下面代码会贴出签名方式代码，返回小程序所需参数。

5、小程序调用微信支付接口wx.requestPayment，官方文档里有案例

公众号微信登录，SDK和所需文件跟上面的PC微信支付大致一样，就不在细写了。

代码：

html：

<view class='tit'><view></view><text>当前积分</text></view><view class='inte'>    <image src='../../images/integral_2.png'></image>    <text>{{inte}}</text></view><view class='tit'><view></view><text>积分充值</text></view><view class='box'>    <view class='list {{product_id == item.id ? "on" : ""}}' wx:for="{{intelist}}" wx:key='key' data-id="{{item.id}}" bindtap='select'>        <view class='t1'>{{item.integral}}积分</view>        <view class='t2'>{{item.price}}元</view>    </view></view><view class='tit'><view></view><text>会员充值</text></view><view class='box'>    <view class='list {{product_id == item.id ? "on" : ""}}' wx:for="{{utplist}}" wx:key='key' data-id="{{item.id}}" bindtap='select'>        <view class='t1'>{{item.integral}}天</view>        <view class='t2'>{{item.price}}元</view>    </view></view><view class='submit' bindtap='submitdata'>确认支付</view>

JS：

const Util = require('../../utils/util.js')const Api = require('../../utils/api.js')const app = getApp()Page({    data: {        uid: '',        inte: '',        product_id:'',        intelist: [],        utplist: [],    },    onLoad: function (options) {        var that = this;        // 获取本地存储用户ID        var uid = wx.getStorageSync('user_id');        if (uid) {            // 存在且为真  存储本页面user_id            that.setData({ uid: uid });        }    },    onShow: function () {        this.rechargeInfo();    },    // 获取充值信息    rechargeInfo: function(){        var that = this;        wx.request({            url: Api.goodsinfo(),            method: 'GET',            header: {                'content-type': 'application/json'            },            data: {                uid: that.data.uid            },            success: res => {                if (res.data.status) {                    that.setData({                        inte: res.data.data.inte,                        intelist: res.data.data.intelist,                        utplist: res.data.data.utplist                    });                }            },            fail: res => {                console.log('错误信息', res);            },            complete: res => {                console.log('请求状态反馈', res);            }        });    },    /**     * 点击商品赋值商品ID     * @author Dongqiang     */    select:function(e){        var that = this;        that.setData({            product_id: e.currentTarget.dataset.id,        });    },    /**     * 提交支付     * @author Dongqiang     */    submitdata:function(){        var that = this;        if (that.data.product_id != ''){            wx.request({                url: Api.wxpay(),                method: 'GET',                header: {                    'content-type': 'application/json'                },                data: {                    uid: that.data.uid,//用户ID                    product_id: that.data.uid//商品ID                },                success: res => {                    if (res.data.status) {                        var send_data = res.data.data;                        //获取服务端统一下单返回数据包拉起支付                        wx.requestPayment({                            'timeStamp': send_data.time,//当前时间戳                            'nonceStr': send_data.nonceStr,//随机字符串                            'package': send_data.prepay_id,//统一下单返回数据包                            'signType': 'MD5',//签名方式                            'paySign': send_data.sign,//签名                            'success': function (res) {                                console.log(res);                             },                            'fail': function (res) {                             },                            'complete': function (res) {                                console.log('支付请求反馈',res);                             }                        })                    }                },                fail: res => {                    console.log('错误信息', res);                },                complete: res => {                    console.log('请求状态反馈', res);                }            });        }else{            wx.showToast({                title: '未获取有效支付信息',                icon: 'none',                duration: 2000            })        }    }})

服务端：

//微信支付 DongQiangpublic function WxPay(){$id = input('get.product_id/d') <= 0 ? $this->ReturnStatus(false,'充值ID异常') : input('get.product_id/d');$uid = empty(input('get.uid')) ? $this->ReturnStatus(false,'UID异常') : input('get.uid/d');$money = db('goods')->field('price,describe,type_id')->where('id',$id)->find();//导入微信支付类库import('SmallWxPay.WxPayApi');//调用统一下单接口$input = new WxPayUnifiedOrder();$input->SetBody($money['describe']);//商品描述$input->SetAttach($money['describe']);//商品附加描述$out_trade_no = WxPayConfig::MCHID.date("YmdHis");$input->SetOut_trade_no($out_trade_no);//唯一订单号$input->SetTotal_fee(intval($money['price']));//金额$input->SetTime_start(date("YmdHis"));//开始时间$input->SetTime_expire(date("YmdHis", time() + 600));//结束时间$input->SetNotify_url("https://www.***.com/home/Wxnotify/notify");//异步回调地址$input->SetTrade_type("JSAPI");//交易类型：小程序填JSAPI$openId = db('member')->where('id',$uid)->value('small_open_id');$input->SetOpenid($openId);//用户Openid$result = WxPayApi::unifiedOrder($input);//调用微信API提交数据并取得返回$type = $money['type_id'] == 2 || $money['type_id'] == 3 ? 2 : 1;//充值类型$res = array();//判断预支付是否成功if($result['return_code'] == 'SUCCESS' && $result['result_code'] == 'SUCCESS'){//增加本地数据$db_res = db('wx_recharge')->insert(['uid' => $uid,'money' => $money['price'],'out_trade_no' => $out_trade_no,'add_time' => time(),'goods_id' => $id,'type' => $type]);if(!$db_res) return $this->ReturnStatus(false,'本地数据异常');//生成签名$nonceStr = $this->createNoncestr();//随机字符串//生成签名所需参数$sign_arr = array('appId' => $result['appid'],//小程序Appid'timeStamp' => strval(time()),//当前时间戳'nonceStr' => $nonceStr,//随机字符串32位'package' => 'prepay_id='.$result['prepay_id'],//统计下单返回'signType' => 'MD5',//加密类型);ksort($sign_arr);//根据键，以升序对关联数组进行排序$sign = "";//拼接签名foreach ($sign_arr as $k => $v){if($k != "sign"){$sign .= $k . "=" . $v . "&";}}$sign = trim($sign, "&");$sign = $sign.'&key='.WxPayConfig::KEY;//KEY拼接到最后$sign_md = md5($sign);//md5加密$sign_res = strtoupper($sign_md);//转为大写$res = array('sign' =>  $sign_res,//签名'time' => $sign_arr['timeStamp'],//当前时间戳'nonceStr' => $sign_arr['nonceStr'],//随机字符串32位'prepay_id' => 'prepay_id='.$result['prepay_id'],//统一下单返回数据包);}else{$this->ReturnStatus(false,'充值异常');}return $result['return_code'] == 'SUCCESS' ? $this->ReturnStatus(true,'成功',$res) : $this->ReturnStatus(false,'失败',$result);}

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公众号微信登录：

参考文档：https://mp.weixin.qq.com/wiki?t=resource/res_main&id=mp1421140842

流程：

1 第一步：用户同意授权，获取code

2 第二步：通过code换取网页授权access_token

3 第三步：刷新access_token（如果需要）

4 第四步：拉取用户信息(需scope为 snsapi_userinfo)

5 附：检验授权凭证（access_token）是否有效

所需材料：

1、微信公众服务号APPID，地址（https://mp.weixin.qq.com/wiki）

代码：

html：

我没写，就写了按钮，哈哈哈哈哈哈哈哈

服务端：

//获取codeDongQiangpublic function get_code(){$appid = $this->appid;//公众号的唯一标识$appsecret = $this->appsecret;//公众号的appsecret$redirect_uri = urlencode('https://www.yx685.com/mobile/Simple/redirect_uri');//授权后重定向的回调链接地址， 请使用 urlEncode 对链接进行处理$response_type = 'code';//返回类型，请填写code$scope = 'snsapi_userinfo';//应用授权作用域，snsapi_base （不弹出授权页面，直接跳转，只能获取用户openid），snsapi_userinfo （弹出授权页面，可通过openid拿到昵称、性别、所在地。并且， 即使在未关注的情况下，只要用户授权，也能获取其信息 ）$state = 'STATE';//重定向后会带上state参数，开发者可以填写a-zA-Z0-9的参数值，最多128字节//请求微信链接，参数拼接$url = 'https://open.weixin.qq.com/connect/oauth2/authorize?appid='.$appid.'&redirect_uri='.$redirect_uri.'&response_type='.$response_type.'&scope='.$scope.'&state=STATE#wechat_redirect';//打开该链接$this->redirect($url);}//微信登录回调地址DongQiangpublic function redirect_uri(){$code = input('get.code');//微信返回的code//获取access_token$aurl = 'https://api.weixin.qq.com/sns/oauth2/access_token?appid='.$this->appid.'&secret='.$this->appsecret.'&code='.$code.'&grant_type=authorization_code';$aurl_res = json_decode(file_get_contents($aurl),true);//+-----------------------------------------+//+检测access_token暂时先不用了+//+预留出个地方，后期可能会用到检测并刷新+//+-----------------------------------------+//拉取用户信息(需scope为 snsapi_userinfo)$url = 'https://api.weixin.qq.com/sns/userinfo?access_token='.$aurl_res['access_token'].'&openid='.$aurl_res['openid'].'&lang=zh_CN';$user_info_arr = json_decode(file_get_contents($url),true);if(isset($user_info_arr['errcode'])){$this->error('获取用户信息失败，请返回上级页面重新登录');}else{$user = db('member')->field('id,phone')->where('unionid',$user_info_arr['unionid'])->find();//通过unionid判断该用户是否存在if($user['id']){session('user_id',$user['id']);session('user_name',$username);//微信端public_open_id不存在就更新if(!db('member')->where('id',$user['id'])->value('public_open_id')){$update_res = db('member')->where('id',$user['id'])->update([