php ci框架微信公众号 JSAPI支付

打开微信商户平台的开发文档，下载php版的SDK与Demo

准备好参数：

1：微信公众号AppID，

2：微信公众号AppSecret，

微信公众平台，商户平台添加好项目授权地址等内容

首先获取用户openid（https://blog.csdn.net/u013027894/article/details/81660751）

然后前端传值必要的商品信息（商品名称、价格等）

代码实例：

父级控制器pay.php

<?phpclass Pay extends HW_Controller{const NOT_PAY_STATUS = 2;const PAY_FINISH_STATUS = 1;const PAY_CANCEL_STATUS = 0;public function __construct() {header('Access-Control-Allow-Origin:*');  parent::__construct();$this->load->model(array('Orders_model'));}//private function random($w){$n = current(unpack('L', openssl_random_pseudo_bytes(4)));return sprintf("%0{$w}.0f", ($n & 0x7fffffff) / 0x7fffffff * (pow(10, $w) - 1));}//获取订单protected function getOrder($trade_no){$where = ['trade_no' => $trade_no];return $this->Orders_model->get_row($where);}//获取订单protected function getOrderByOut($out_trade_no){$where = ['out_trade_no' => $out_trade_no];return $this->Orders_model->get_row($where);}//付款成功protected function paySuccess($order){if($order['trade_status'] == 2){$order['trade_status'] = 1;$this->Orders_model->update($order, ['id' => $order['id']]);$this->callback($order);}}//组装固定public function order(){$post = $this->input->post();// $post = array(//     'u_code'=>547,//     'operators_id'=>295,//     'trade_name'=>'微信支付测试',//     'types'=>1,//     'out_trade_no'=>'2019050830299131',//     'trade_no'=>'2019050822001435491030697398',//     'total_amount'=>'121',//     'method'=>2,//     'trade_status'=>1,//     'subject_id'=>7,//     'grade_id'=>1,//     'course_id'=>280,//     'course_goods_id'=>295,// );$order['u_code'] = intval($post['u_code']);$order['operators_id'] = intval($post['goods_id']) ? intval($post['goods_id']) : 0;$order['trade_name'] = $post['title'] ? $post['title'] : $post['goods_name'];$order['types'] = intval($post['types']);$order['total_amount'] = floatval($post['amount']);$order['trade_status'] = self::NOT_PAY_STATUS;$order['trade_no'] = $this->tradeNo();$order['subject_id'] = intval($post['subject_id']);$order['grade_id'] = intval($post['grade_id']);$order['course_id'] = intval($post['course_id']);$order['course_goods_id'] = intval($post['goods_id']);return $order;}//保存订单protected function saveOrder($order){try{$order_id = $this->Orders_model->save($order);}catch(Exception $e){return "保存订单失败";}return $order_id;}//notify回调public function notify(){}//支付成功后回调public function callback(){}//获取订单号private function tradeNo(){return md5(uniqid(microtime(true),true));}public function http_get($url){$oCurl = curl_init();if (stripos($url, "https://") !== FALSE) {curl_setopt($oCurl, CURLOPT_SSL_VERIFYPEER, FALSE);curl_setopt($oCurl, CURLOPT_SSL_VERIFYHOST, FALSE);curl_setopt($oCurl, CURLOPT_SSLVERSION, 1); //CURL_SSLVERSION_TLSv1}curl_setopt($oCurl, CURLOPT_URL, $url);curl_setopt($oCurl, CURLOPT_RETURNTRANSFER, 1);$sContent = curl_exec($oCurl);$aStatus = curl_getinfo($oCurl);curl_close($oCurl);if (intval($aStatus["http_code"]) == 200) {return $sContent;} else {return false;}}public function curl_request($url, $is_post = 0, $postdata = array()){$ch = curl_init();//初始化curlcurl_setopt($ch, CURLOPT_HEADER, false);curl_setopt($ch, CURLOPT_URL, $url);//抓取指定网页curl_setopt($ch, CURLOPT_AUTOREFERER, true);curl_setopt($ch, CURLOPT_REFERER, $url);curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);//要求结果为字符串且输出到屏幕上curl_setopt($ch, CURLOPT_BINARYTRANSFER, true);curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE); // https请求 不验证证书和hostscurl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);if ($is_post == 1) {curl_setopt($ch, CURLOPT_POST, $is_post);//post提交方式curl_setopt($ch, CURLOPT_POSTFIELDS, $postdata);}$data = curl_exec($ch);//运行curlcurl_close($ch);return $data;}}

订单信息公共方法：order

支付控制器WechatPay.php

<?phprequire_once APPPATH.'controllers/web/Pay.php';
require_once APPPATH."libraries/WechatPay/notify.php";
require_once APPPATH."libraries/WechatPay/lib/WxPay.Api.php";
require_once APPPATH."libraries/WechatPay/lib/WxPay.Notify.php";
require_once APPPATH."libraries/WechatPay/WxPay.Config.php";
require_once APPPATH."libraries/WechatPay/WxPay.JsApiPay.php";
require_once APPPATH."libraries/WechatPay/log.php";class WechatPay extends Pay
{const OAUTH_TOKEN_PREFIX = 'https://api.weixin.qq.com/sns/oauth2';const OAUTH_TOKEN_URL = '/access_token?';private $_post = array();private static $payMethod = 2;private $appId;private $appIdMini;private $appSecret;private $appSecretMini;public function __construct() {parent::__construct();$this->_api = $this->load->database('api', TRUE);$config = new WxPayConfig();$this->appId = $config->GetAppId();$this->appIdMini = $config->GetAppIdMini();$this->appSecret = $config->GetAppSecret();$this->appSecretMini = $config->GetAppSecretMini();$this->_post = $this->input->post();$this->_json = array('code' => self::CODE_FAIL, 'msg' => self::MSG_FAIL, 'data' => array());}//下单public function order(){$order = parent::order();$order['method'] = self::$payMethod;if(empty($order['u_code'])){$this->_json['code'] = self::CODE_FAIL;$this->_json['msg'] = '无效用户';$this->y_view($this->_json);}$post = $this->input->post();// $order['out_trade_no'] = date('Ymd') . str_pad(mt_rand(1, 99999999), 8, '0', STR_PAD_LEFT);// setcookie($post['order_id'], time() + 200);if($post['is_balance_charge'] == 1 || $post['is_balance_charge'] == '1'){$data_info['u_code'] = $post['u_code'];$data_info['balance_describe'] = $post['goods_name'];$data_info['order_no'] = $order['trade_no'];$data_info['balance'] = $post['num'];$data_info['is_deleted'] = 1;$data_info['is_plus'] = 0;
//            $sUrl = MSJT_ZHSSW100.'/Msjtapi/balance_report';$sUrl = MSJT_ZHSSW100 . '/Msjtapi/balance_report?u_code=' . $data_info['u_code'] . '&balance_describe='. $post['goods_name'] . '&is_deleted=1&balance=' . $data_info['balance'] . '&types='.$post['types'].'&is_plus=0&order_no=' . $data_info['order_no'];$res = $this->curl_request($sUrl, 0, $data_info);$result = json_decode($res,true);if($result['code'] == 1 || $result['code'] == '1'){$result == 1;}else{$result == '充值下单调接口失败！';}}else{$result = $this->saveOrder($order);}if(is_string($result)){$this->_json['code'] = self::CODE_FAIL;$this->_json['msg'] = $result;$this->y_view($this->_json);}$order['product_id'] = $this->_post['grade_id'] . $this->_post['subject_id'] . $this->_post['course_id'] . $this->_post['goods_id'];$order['total_amount'] = intval(100 * $order['total_amount']) ? intval(100 * $order['total_amount']) : intval(100 * $post['num']) ;$order['openid'] = $this->_post['openid'];return $order;}public function notify(){$this->load->model(array('Orders_model', 'Users_model'));$post = $this->input->post();$config = new WxPayConfig();$notify = new PayNotifyCallBack();$notify->Handle($config, false);if(strtoupper($notify->GetReturn_code()) == 'SUCCESS'){$xml = isset($GLOBALS['HTTP_RAW_POST_DATA']) ? $GLOBALS['HTTP_RAW_POST_DATA'] : file_get_contents("php://input");$result = WxPayResults::Init($config,$xml);$trade_no = $result['out_trade_no'];$order = $this->getOrder($trade_no);if(!empty($order)){if($order['types'] == 1) {$data_list['is_msjt_vip'] = 1;$data_list['u_code'] = $order['u_code'];$data_list['num_integral'] = intval($order['total_amount']);$sUrl = $this->config->item('msjt_zhssw100') . '/Msjtapi/user_edit?u_code=' . $data_list['u_code'] . '&is_msjt_vip=1&types=1&num_integral=' . $data_list['num_integral'];$res = parent::curl_request($sUrl, 0, $data_list);}$order['out_trade_no'] = $result['transaction_id'];$this->paySuccess($order);           }else{//商户订单号$data_info['order_no'] = $trade_no;$data_info['is_plus'] = 0;$data_info['is_deleted'] = 0;$sUrl = $this->config->item('msjt_zhssw100') . '/Msjtapi/update_balance?order_no=' . $data_info['order_no'] . '&is_plus=0&is_deleted=0';$result = $this->curl_request($sUrl, 0, $data_info);$info = json_decode($result,true);$this->_json['code'] = $info['code'];$this->_json['msg'] = $info['msg'];$this->_json['data'] = $info['data'];$this->y_view($this->_json);}}}//组装订单获取支付链接public function create(){$order = $this->order();$this->load->library('WechatPay/NativePay', '', 'native');$input = new WxPayUnifiedOrder();$input->SetBody($order['trade_name']);$input->SetOut_trade_no($order['trade_no']);$input->SetTotal_fee($order['total_amount']);$input->SetTime_start(date("YmdHis"));$input->SetNotify_url("https://msktapi.zhssw.com/wechatPay/notify");$input->SetTrade_type("NATIVE");$input->SetProduct_id($order['product_id']);$result = $this->native->GetPayUrl($input);$data['url'] = urlencode($result["code_url"]);$data['trade_no'] = $order['trade_no'];$this->_json['code'] = self::CODE_SUCC;$this->_json['msg'] = self::MSG_SUCC;$this->_json['data'] = $data;$this->y_view($this->_json);}//回调成功public function callback(){}/*** 微信JSAPI支付统一下单* @Author   TGHan* @DateTime 2019-05-14* @version  [version]* @return   [type]     [description]*/public function jsapi(){$post = $this->input->post();$order = $this->order();$tools = new JsApiPay();//②、统一下单$input = new WxPayUnifiedOrder();$input->SetBody($order['trade_name']);$input->SetOut_trade_no($order['trade_no']);$input->SetTotal_fee($order['total_amount']);$input->SetTime_start(date("YmdHis"));$input->SetNotify_url('https://msktapi.zhssw.com/wechatPay/notify');$input->SetTrade_type("JSAPI");$input->SetOpenid($order['openid']);$config = new WxPayConfig();$orders = WxPayApi::unifiedOrder($config, $input);$jsApiParameters = $tools->GetJsApiParameters($orders);$data_info = json_decode($jsApiParameters,true);$jsapiTicket = $this->getJsApiTicket();$nonceStr = $data_info['nonceStr'];$timestamp = $data_info['timeStamp'];$url = $post['url'];$string = "jsapi_ticket=$jsapiTicket&noncestr=$nonceStr&timestamp=$timestamp&url=$url";$signature['signature'] = sha1($string);$data_list = array_merge($data_info,$signature);$this->_json['code'] = self::CODE_SUCC;$this->_json['msg'] = self::MSG_SUCC;$this->_json['data'] = $data_list;$this->y_view($this->_json);}/*** 给客户端返回必要微信参数* @Author   TGHan* @DateTime 2018-04-26* @return   [type]     [description]*/public function modifyinfor() {$post = $this->input->post();$jsapiTicket = $this->getJsApiTicket();// 注意 URL 一定要动态获取，不能 hardcode.// $protocol = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off' || $_SERVER['SERVER_PORT'] == 443) ? "https://" : "http://";// $url = "$protocol$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";$url = $post['url'];$timestamp = time();$nonceStr = $this->createNonceStr();// 这里参数的顺序要按照 key 值 ASCII 码升序排序$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" => $string);$this->_json['code'] = self::CODE_SUCC;$this->_json['msg'] = self::MSG_SUCC;$this->_json['data'] = $signPackage;$this->y_view($this->_json);}public function createNonceStr($length = 16) {$chars ="abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";$str = "";for ($i = 0; $i < $length; $i++) {$str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);}return $str;}public function getJsApiTicket() {// jsapi_ticket 应该全局存储与更新，以下代码以写入到文件中做示例$data =json_decode(file_get_contents("jsapi_ticket.json"));if ($data->expire_time < time()) {$accessToken = $this->getAccessToken();// 如果是企业号用以下 URL 获取 ticket// $url = "https://qyapi.weixin.qq.com/cgi-bin/get_jsapi_ticket?access_token=$accessToken";$url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?type=jsapi&access_token=$accessToken";$res = json_decode($this->httpGet($url));$ticket = $res->ticket;if ($ticket) {$data->expire_time = time() + 7000;$data->jsapi_ticket = $ticket;$fp = fopen("jsapi_ticket.json", "w");fwrite($fp, json_encode($data));fclose($fp);}} else {$ticket = $data->jsapi_ticket;}return $ticket;}public function getAccessToken() {// access_token 应该全局存储与更新，以下代码以写入到文件中做示例$data =json_decode(file_get_contents("access_token.json"));if ($data->expire_time < time()) {// 如果是企业号用以下URL获取access_token// $url = "https://qyapi.weixin.qq.com/cgi-bin/gettoken?corpid=$this->appId&corpsecret=$this->appSecret";$url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=$this->appId&secret=$this->appSecret";$res = json_decode($this->httpGet($url));$access_token = $res->access_token;if ($access_token) {$data->expire_time = time() + 7000;$data->access_token = $access_token;$fp = fopen("access_token.json", "w");fwrite($fp, json_encode($data));fclose($fp);}} else {$access_token = $data->access_token;}return $access_token;}public function getJsApiTicketMini() {// jsapi_ticket 应该全局存储与更新，以下代码以写入到文件中做示例$data =json_decode(file_get_contents("jsapi_ticket.json"));if ($data->expire_time < time()) {$accessToken = $this->getAccessTokenMini();// 如果是企业号用以下 URL 获取 ticket// $url = "https://qyapi.weixin.qq.com/cgi-bin/get_jsapi_ticket?access_token=$accessToken";$url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?type=jsapi&access_token=$accessToken";$res = json_decode($this->httpGet($url));$ticket = $res->ticket;if ($ticket) {$data->expire_time = time() + 7000;$data->jsapi_ticket = $ticket;$fp = fopen("jsapi_ticket.json", "w");fwrite($fp, json_encode($data));fclose($fp);}} else {$ticket = $data->jsapi_ticket;}return $ticket;}public function getAccessTokenMini() {// access_token 应该全局存储与更新，以下代码以写入到文件中做示例$data =json_decode(file_get_contents("access_token.json"));if ($data->expire_time < time()) {// 如果是企业号用以下URL获取access_token// $url = "https://qyapi.weixin.qq.com/cgi-bin/gettoken?corpid=$this->appId&corpsecret=$this->appSecret";$url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=$this->appIdMini&secret=$this->appSecretMini";$res = json_decode($this->httpGet($url));$access_token = $res->access_token;if ($access_token) {$data->expire_time = time() + 7000;$data->access_token = $access_token;$fp = fopen("access_token.json", "w");fwrite($fp, json_encode($data));fclose($fp);}} else {$access_token = $data->access_token;}return $access_token;}public function httpGet($url) {$curl = curl_init();curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);curl_setopt($curl, CURLOPT_TIMEOUT, 500);// 为保证第三方服务器与微信服务器之间数据传输的安全性，所有微信接口采用https方式调用，必须使用下面2行代码打开ssl安全校验。// 如果在部署过程中代码在此处验证失败，请到 http://curl.haxx.se/ca/cacert.pem 下载新的证书判别文件。curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE); // https请求 不验证证书和hostscurl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE);curl_setopt($curl, CURLOPT_URL, $url);$res = curl_exec($curl);curl_close($curl);return $res;}public function getOpenId() { $post = $this->input->post();$code = $post['code'];$url = "https://api.weixin.qq.com/sns/jscode2session?appid=$this->appIdMini&secret=$this->appSecretMini&js_code=$code&grant_type=authorization_code";// $url = 'https://api.weixin.qq.com/sns/jscode2session?appid=wx6330ec3336582141&secret=cd67e10ce2638c3448e513237c7f491e&js_code=0616v5H32ruaCP0gCIF32TrKG326v5H0&grant_type=authorization_code';$result = parent::http_get($url);$data_info = json_decode($result, true);$this->_json['code'] = self::CODE_SUCC;$this->_json['msg'] = self::MSG_SUCC;$this->_json['data'] = $data_info;$this->y_view($this->_json);}public function jsapiMini(){$post = $this->input->post();$order = $this->order();$tools = new JsApiPay();//②、统一下单$input = new WxPayUnifiedOrder();$input->SetBody($order['trade_name']);$input->SetOut_trade_no($order['trade_no']);$input->SetTotal_fee($order['total_amount']);$input->SetTime_start(date("YmdHis"));$input->SetNotify_url('https://msktapi.zhssw.com/wechatPay/notify');$input->SetTrade_type("JSAPI");$input->SetOpenid($post['openid']);$config = new WxPayConfig();$orders = WxPayApi::unifiedOrderMini($config, $input);$jsApiParameters = $tools->GetJsApiParameters($orders);$data_info = json_decode($jsApiParameters,true);$jsapiTicket = $this->getJsApiTicketMini();$nonceStr = $data_info['nonceStr'];$timestamp = $data_info['timeStamp'];$url = $post['url'];$string = "jsapi_ticket=$jsapiTicket&noncestr=$nonceStr&timestamp=$timestamp&url=$url";$signature['signature'] = sha1($string);$data_list = array_merge($data_info,$signature);$this->_json['code'] = self::CODE_SUCC;$this->_json['msg'] = self::MSG_SUCC;$this->_json['data'] = $data_list;$this->y_view($this->_json);}/*todo 微信网页支付用的到的*/public function pagePay(){header('Access-Control-Allow-Origin:*');$get = $_GET;if (empty($get['u_code'])) {$get = $_POST;}$num = $get['num'];$get['num'] = floatval($get['num'])*100;$get['order_id'] = md5(uniqid(microtime(true),true));
//        setcookie($get['order_id'], $get['describe'], time() + 200);if ($get['is_balance_charge'] == 1) {$order['u_code'] = $get['u_code'];$order['balance_describe'] = $get['goods_name'];$order['order_no'] = $get['order_id'];$order['balance'] = $get['num'];$order['is_deleted'] = 1;$order['is_plus'] = 0;$sUrl = MSJT_ZHSSW100 . '/Msjtapi/balance_report?u_code=' . $order['u_code'] . '&balance_describe='. $get['goods_name'] . '&is_deleted=1&balance=' . $num . '&types=' . $get['types'] . '&is_plus=0&order_no=' . $order['order_no'];$result = $this->curl_request($sUrl, 0, $order);} else {$order['u_code'] = $get['u_code'];$order['trade_name'] = $get['goods_name'];$order['operators_id'] = intval($get['goods_id']);$order['out_trade_no'] = $get['order_id'];$order['total_amount'] = $get['num'];$order['types'] = $get['types'];$order['education_order_describe'] = $get['describe'];$order['education_order_describe'] .= $get['is_report'] ? '（成功送积分）' : '';$order['education_price_id'] = intval($get['goods_id']);$order['method'] = 2;$order['trade_status'] = 2;$order['subject_id'] = intval($get['subject_id']);$order['grade_id'] = intval($get['grade_id']);$order['course_id'] = intval($get['course_id']);$this->load->model(array('Orders_model'));$this->Orders_model->save($order);}$order1['trade_name'] = $get['title'] ? $get['title'] : $get['goods_name'];$order1['total_amount'] = $get['num'];$order1['trade_no'] =$get['order_id'];//        $order1['u_code'] = intval($get['u_code']);//        $order1['types'] = intval($get['types']);//        $order1['trade_status'] = self::NOT_PAY_STATUS;//        $order1['subject_id'] = intval($get['subject_id']);//        $order1['grade_id'] = intval($get['grade_id']);//        $order1['course_id'] = intval($get['course_id']);//        $order1['course_goods_id'] = intval($get['goods_id']);$this->load->library('WechatPay/NativePay', '', 'native');$input = new WxPayUnifiedOrder();$input->SetBody($order1['trade_name']);$input->SetOut_trade_no($order1['trade_no']);$input->SetTotal_fee($order1['total_amount']);$input->SetTime_start(date("YmdHis"));$input->SetNotify_url("https://msktapi.zhssw.com/wechatPay/notify");$input->SetTrade_type("NATIVE");$input->SetProduct_id($order1['trade_no']);$result1 = $this->native->GetPayUrl($input);$this->load->library('WechatPay/QrcodeImg', '', 'qrcode');$data['weixin_url'] = $result1["code_url"];$data['trade_no'] = $order1['trade_no'];$data['result'] = $order1;$this->_json['code'] = self::CODE_SUCC;$this->_json['msg'] = self::MSG_SUCC;$this->_json['data'] = $data;$this->y_view($this->_json);}//  根据订单查询pc端充值结果public function orderCheck(){$trade_no = $_POST['trade_no'] ? $_POST['trade_no'] : $_GET['trade_no'];if(empty($trade_no)){$this->_json['code'] = self::CODE_FAIL;$this->_json['msg'] = '请传递交易号码';$this->y_view($this->_json);}$sql1 = "SELECT * FROM api.h_balance_detail where order_no =  '" . $trade_no . "'";$user = $this->_api->query($sql1)->row();if($user->is_deleted == 0 && !empty($user)){$this->_json['code'] = self::CODE_SUCC;$this->_json['msg'] = '充值成功';$this->_json['data'] = [];$this->y_view($this->_json);}$this->_json['code'] = self::CODE_FAIL;$this->_json['msg'] = '充值失败';$this->_json['data'] = [];$this->y_view($this->_json);}//获取二维码public function qrcode(){$url = $_GET["data"];$this->load->library('WechatPay/QrcodeImg', '', 'qrcode');$this->qrcode->getImage($url);}}

统一下单方法：jsapi

以及回调方法：

订单信息入库：order

前后端联调。

参考文档：

https://blog.csdn.net/weixin_33699914/article/details/87606809

https://blog.csdn.net/Honnyee/article/details/79259304

https://blog.csdn.net/zhuwcang830512/article/details/82918152

https://www.jb51.net/article/136466.htm

http://blog.sina.com.cn/s/blog_642d408c0102xfwz.html

https://blog.csdn.net/u013027894/article/details/81660751

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