PHP实现一个二维码同时支持支付宝和微信支付的示例

实现思路

效果展示

提示： 因为项目即将上线，所以上面的支付二维码连接被我替换了(注意在生成二维码时加入的连接，要带上http协议)

实现

步骤生成二维码

//我的url指向了checkTerrace方法$url = self::ADMIN_URL . ’params=’ . $params; //ADMIN_URL是生成二维码的url，请替换成自己

处理用户扫码操作(checkTerrace方法)

public function checkTerrace() { $pay_type = $this->getPayType(); //该方法使用来判断用户扫码终端的 $params = $this->request->get(’params’); //生成二维码url带的参数(看个人需求，我的项目需要额外参数) $params = $this->desDecode($params); //这里是因为我对参数进行了desc加密，看个人需求 if ($pay_type === ’alipay’) { //如果用户是通过支付宝扫码，进行支付宝相关操作 if ($params === false) { echo '系统错误!，请稍后重试'; exit; } $res = $this->createOrder($pay_type, $params); if (!$res) { echo '系统错误，请稍后重试'; exit; } $this->aliPay($res); } elseif ($pay_type === ’wechat’) { //如果用户是通过微信扫码，进行微信相关操作 if ($params === false) { echo '系统错误，请稍后重试'; exit; } $prepare = $this->wechat($pay_type, $params); $this->assign(’json’, $prepare); return $this->display(’wpay.html’); } elseif ($pay_type === false) { echo '请使用支付宝或微信进行扫码'; exit; } }

判断扫码终端

/** * 判断扫码终端 * * @return string|boolean * @date 2021-02-04 */ private function getPayType() { if (strstr($_SERVER[’HTTP_USER_AGENT’], ’AlipayClient’)) { return 'alipay'; } elseif (strstr($_SERVER[’HTTP_USER_AGENT’], ’MicroMessenger’)) { return 'wechat'; } else { return false; } }

生成订单

/** * 生成订单 * * @param string $pay_type * @param json $params * @return void * @date 2021-02-04 */ //这个逻辑就不贴代码了 private function createOrder($pay_type, $params) { /*生成订单相关逻辑代码*/ }

支付宝支付

/** * 唤起支付宝app * * @param array $api_params * @return void * @date 2021-02-04 */ private function aliPay($api_params) { $config = [ ’notify_url’ => ’异步回调地址’, ’is_open_certificate’ => true ]; $domain = urlencode($api_params[’domain’]); $api = [ ’out_trade_no’ => $api_params[’trade_no’], ’total_amount’ => ’0.01’, ’subject’ => ’商品标题’, ’passback_params’ => $domain ]; $pay = new Pay($config); $res = $pay->driver(’alipay’)->gateway(’wap’)->pay($api); //调用支付宝手机网站支付 echo $res; }

微信支付

/** * 唤起微信app * * @return void * @date 2021-02-04 */ public function wechat($pay_type, $params) { $opend_id = $this->getOpenId(); //处理微信jsapi支付之前，要先获取用户的openID if (!$opend_id) { echo '微信授权失败...'; exit; } $api_params = $this->createOrder($pay_type, $params); //用户openID获取成功后才进行订单生产操作 if (!$api_params) { echo '系统错误，请稍后重试'; exit; } $config = [’notify_url’ => ’微信异步回调地址’]; $api = [ ’body’ => ’我是标题’, ’out_trade_no’ => $api_params[’trade_no’], ’total_fee’ => 1,’openid’ => $opend_id, ’attach’ => $api_params[’domain’] ]; $pay = new Pay($config); $res = $pay->driver(’wechat’)->gateway(’mp’)->pay($api); //调用微信jsapi支付 return $res; }

静默获取openID

/** * 获取用户的openid * * @return void * @date 2021-02-04 */ public function getOpenId() { if (isset($_SESSION[’open_id’]) && $_SESSION[’open_id’]) { return $_SESSION[’open_id’]; } if (!$this->request->get(’code’)) { $redirect_uri = $_SERVER[’REQUEST_SCHEME’] . ’://’ . $_SERVER[’HTTP_HOST’] . $_SERVER[’REQUEST_URI’]; //这里授权后微信跳转的地址，要写在订单处理处，否则会造成因为程序跳转到微信授权页面，导致脚本逻辑终止 $redirect_uri = urlencode($redirect_uri); $url = $this->codeUrl . ’redirect_uri=’ . $redirect_uri . ’&appid=’ . $this->appId . ’&scope=snsapi_base&response_type=code&state=STATE#wechat_redirect’; //使用用户静默授权模式(因为我不需要获取用户信息所有就没采用用户手段授权模式) header('location:{$url}'); //跳转到微信授权页面 } else { $openidurl = $this->openidUrl . ’appid=’ . $this->appId . ’&secret=’ . $this->appSecret . ’&code=’ . $this->request->get(’code’) . ’&grant_type=authorization_code’; $data = Http::get($openidurl); $data = json_decode($data, true); if ($data[’openid’]) { $_SESSION[’open_id’] = $data[’openid’]; //获取到的用户openID存储到session中 } else {$_SESSION[’open_id’] = false; } return $_SESSION[’open_id’]; } }

前端轮询判断监听订单支付状态

$(function() { $('#code').qrcode({ //jQuery生成二维码width: 165, //宽度height: 167, //高度text: $(’input[name='url']’).val() }); var startTime = Date.parse(new Date())/1000; //设置定时器 var poll_request = setInterval( function() { $.ajax({ url: ’/company/StoreSetting/checkStatus’, data:{time:startTime}, dataType:’json’, type:’get’, success:function(res) { if (res.code == 400) {var result = clearTimer(poll_request, startTime);if (result) { var html = `<img src='https://www.haobala.com/Static/images/paybg.png'>`+`<div id='notify'>`+`<img src='https://www.haobala.com/Static/images/pay_time_out.png' alt=''>`+`<span class='pay_tip'>点击重新获取</span>`+`</div>`; $(’.qrcode-img’).empty(); $(’.qrcode-img’).append(html);} } else if(res.code == 500) {var html = `<img src='https://www.haobala.com/Static/images/paybg.png'>`+`<div class='notify'>`+`<img src='https://www.haobala.com/Static/images/pay_error.png' alt=''>`+`<span class='pay_tip'>已扫码<br>请在手机端操作</span>`+`</div>`;$(’.qrcode-img’).empty();$(’.qrcode-img’).append(html);clearTimer(poll_request, startTime); } else if(res.code == 200) {clearInterval(poll_request)layer.msg('支付成功', {icon:6}, function() { window.location.reload()})// layer.msg('支付成功', {icon:6}, function() { // }) } } }) }, 2000); }) function clearTimer(index, startTime) { if (((Date.parse(new Date())/1000) - startTime) > 60) {clearInterval(index)return ’reload’; } return false; } //刷新二维码 $(’.qrcode-img’).on('click', ’#notify’, function() { $(’.qrcode-img’).empty() $('#code').qrcode({width: 165, //宽度height: 167, //高度text: $(’input[name='url']’).val() }); var startTime = Date.parse(new Date())/1000; var poll_request = setInterval( function() { $.ajax({ url: ’/company/StoreSetting/checkStatus’, data:{time:startTime}, dataType:’json’, type:’get’, success:function(res) { if (res.code == 400) {var result = clearTimer(poll_request, startTime);if (result) { var html = `<img src='https://www.haobala.com/Static/images/paybg.png'>`+`<div id='notify'>`+`<img src='https://www.haobala.com/Static/images/pay_time_out.png' alt=''>`+`<span class='pay_tip'>点击重新获取</span>`+`</div>`; $(’.qrcode-img’).empty(); $(’.qrcode-img’).append(html);} } else if(res.code == 500) {var html = `<img src='https://www.haobala.com/Static/images/paybg.png'>`+`<div class='notify'>`+`<img src='https://www.haobala.com/Static/images/pay_error.png' alt=''>`+`<span class='pay_tip'>已扫码<br>请在手机端操作</span>`+`</div>`;$(’.qrcode-img’).empty();$(’.qrcode-img’).append(html);clearTimer(poll_request, startTime); } else if(res.code == 200) {clearInterval(poll_request)layer.msg('支付成功', {icon:6}, function() { window.location.reload()})// layer.msg('支付成功', {icon:6}, function() { // }) } } }) }, 2000); })

前端效果：

用户进入支付页面但是一直为扫码，超过一定时间

用户扫码后一直未进行支付，超过一定时间

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