使用php的ci框架，实现微信支付（jsapi方式+完整代码）
看了一天的微信文档，花了一天的时候调试问题，一共花了差不多2天时间，可算是把微信支付做出来了，在这里把微信支付的开发过程记录一下。
微信后台配置
要注意的是支付授权目录，应该填写你实际支付页面的上一级！
比如：用于支付的页面是www.baidu.com/abc/order/pay
那么你的授权目录应该是：www.baidu.com/abc/order/
注意要带上‘/’
1. 文件准备
由于我用的ci框架，在微信支付官方文档下载支付的demo，不是php的CI框架，所以并不适用。随后在网上找到了一位热心网友大神的代码，将官网的demo整合到了CI框架里，链接http://www.cnblogs.com/24la/p/wxpay-jsapi-refund.html。感谢大神！大家可以看看链接中的说明，写的很清楚。
这里贴一下大佬封装的api类，很好用！
class WechatPay {
const TRADETYPE_JSAPI = 'JSAPI',TRADETYPE_NATIVE = 'NATIVE',TRADETYPE_APP = 'APP';
const URL_UNIFIEDORDER = "https://api.mch.weixin.qq.com/pay/unifiedorder";
const URL_ORDERQUERY = "https://api.mch.weixin.qq.com/pay/orderquery";
const URL_CLOSEORDER = 'https://api.mch.weixin.qq.com/pay/closeorder';
const URL_REFUND = 'https://api.mch.weixin.qq.com/secapi/pay/refund';
const URL_REFUNDQUERY = 'https://api.mch.weixin.qq.com/pay/refundquery';
const URL_DOWNLOADBILL = 'https://api.mch.weixin.qq.com/pay/downloadbill';
const URL_REPORT = 'https://api.mch.weixin.qq.com/payitil/report';
const URL_SHORTURL = 'https://api.mch.weixin.qq.com/tools/shorturl';
const URL_MICROPAY = 'https://api.mch.weixin.qq.com/pay/micropay';
public $error = null;
public $errorXML = null;
private $_config;
public function __construct($config) {
$this->_config = $config;
}
public function getPrepayId($body,$out_trade_no,$total_fee,$notify_url,$openid) {
$data = array();
$data["nonce_str"] = $this->get_nonce_string();
$data["body"] = $body;
$data["out_trade_no"] = $out_trade_no;
$data["total_fee"] = $total_fee;
$data["spbill_create_ip"] = $_SERVER["REMOTE_ADDR"];
$data["notify_url"] = $notify_url;
$data["trade_type"] = self::TRADETYPE_JSAPI;
$data["openid"] = $openid;
$result = $this->unifiedOrder($data);
if ($result["return_code"] == "SUCCESS" && $result["result_code"] == "SUCCESS") {
return $result["prepay_id"];
} else {
$this->error = $result["return_code"] == "SUCCESS" ? $result["err_code_des"] : $result["return_msg"];
$this->errorXML = $this->array2xml($result);
return null;
}
}
private function get_nonce_string() {
return substr(str_shuffle("abcdefghijklmnopqrstuvwxyz0123456789"),0,32);
}
public function unifiedOrder($params) {
$data = array();
$data["appid"] = $this->_config["appid"];
$data["mch_id"] = $this->_config["mch_id"];
$data["device_info"] = (isset($params['device_info'])&&trim($params['device_info'])!='')?$params['device_info']:null;
$data["nonce_str"] = $this->get_nonce_string();
$data["body"] = $params['body'];
$data["detail"] = isset($params['detail'])?$params['detail']:null;
$data["attach"] = isset($params['attach'])?$params['attach']:null;
$data["out_trade_no"] = isset($params['out_trade_no'])?$params['out_trade_no']:null;
$data["fee_type"] = isset($params['fee_type'])?$params['fee_type']:'CNY';
$data["total_fee"] = $params['total_fee'];
$data["spbill_create_ip"] = $params['spbill_create_ip'];
$data["time_start"] = isset($params['time_start'])?$params['time_start']:null;
$data["time_expire"] = isset($params['time_expire'])?$params['time_expire']:null;
$data["goods_tag"] = isset($params['goods_tag'])?$params['goods_tag']:null;
$data["notify_url"] = $params['notify_url'];
$data["trade_type"] = $params['trade_type'];
$data["product_id"] = isset($params['product_id'])?$params['product_id']:null;
$data["openid"] = isset($params['openid'])?$params['openid']:null;
$result = $this->post(self::URL_UNIFIEDORDER, $data);
return $result;
}
private function post($url, $data,$cert = false) {
$data["sign"] = $this->sign($data);
$xml = $this->array2xml($data);
$ch = curl_init();
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $xml);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_URL, $url);
if($cert == true){
curl_setopt($ch,CURLOPT_SSLCERTTYPE,'PEM');
curl_setopt($ch,CURLOPT_SSLCERT, $this->_config['sslcertPath']);
curl_setopt($ch,CURLOPT_SSLKEYTYPE,'PEM');
curl_setopt($ch,CURLOPT_SSLKEY, $this->_config['sslkeyPath']);
}
$content = curl_exec($ch);
$array = $this->xml2array($content);
return $array;
}
private function sign($data) {
ksort($data);
$string1 = "";
foreach ($data as $k => $v) {
if ($v && trim($v)!='') {
$string1 .= "$k=$v&";
}
}
$stringSignTemp = $string1 . "key=" . $this->_config["apikey"];
$sign = strtoupper(md5($stringSignTemp));
return $sign;
}
private function array2xml($array) {
$xml = "<xml>" . PHP_EOL;
foreach ($array as $k => $v) {
if($v && trim($v)!='')
$xml .= "<$k><![CDATA[$v]]></$k>" . PHP_EOL;
}
$xml .= "</xml>";
return $xml;
}
private function xml2array($xml) {
$array = array();
$tmp = null;
try{
$tmp = (array) simplexml_load_string($xml);
}catch(Exception $e){}
if($tmp && is_array($tmp)){
foreach ( $tmp as $k => $v) {
$array[$k] = (string) $v;
}
}
return $array;
}
public function getCodeUrl($body,$out_trade_no,$total_fee,$notify_url,$product_id){
$data = array();
$data["nonce_str"] = $this->get_nonce_string();
$data["body"] = $body;
$data["out_trade_no"] = $out_trade_no;
$data["total_fee"] = $total_fee;
$data["spbill_create_ip"] = $_SERVER["SERVER_ADDR"];
$data["notify_url"] = $notify_url;
$data["trade_type"] = self::TRADETYPE_NATIVE;
$data["product_id"] = $product_id;
$result = $this->unifiedOrder($data);
if ($result["return_code"] == "SUCCESS" && $result["result_code"] == "SUCCESS") {
return $result["code_url"];
} else {
$this->error = $result["return_code"] == "SUCCESS" ? $result["err_code_des"] : $result["return_msg"];
return null;
}
}
public function orderQuery($transaction_id,$out_trade_no){
$data = array();
$data["appid"] = $this->_config["appid"];
$data["mch_id"] = $this->_config["mch_id"];
$data["transaction_id"] = $transaction_id;
$data["out_trade_no"] = $out_trade_no;
$data["nonce_str"] = $this->get_nonce_string();
$result = $this->post(self::URL_ORDERQUERY, $data);
return $result;
}
public function closeOrder($out_trade_no){
$data = array();
$data["appid"] = $this->_config["appid"];
$data["mch_id"] = $this->_config["mch_id"];
$data["out_trade_no"] = $out_trade_no;
$data["nonce_str"] = $this->get_nonce_string();
$result = $this->post(self::URL_CLOSEORDER, $data);
return $result;
}
public function refund($out_trade_no,$out_refund_no,$total_fee,$refund_fee,$op_user_id){
$data = array();
$data["appid"] = $this->_config["appid"];
$data["mch_id"] = $this->_config["mch_id"];
$data["nonce_str"] = $this->get_nonce_string();
$data["out_trade_no"] = $out_trade_no;
$data["out_refund_no"] = $out_refund_no;
$data["total_fee"] = $total_fee;
$data["refund_fee"] = $refund_fee;
$data["op_user_id"] = $op_user_id;
$result = $this->post(self::URL_REFUND, $data,true);
return $result;
}
public function refundByTransId($transaction_id,$out_refund_no,$total_fee,$refund_fee,$op_user_id){
$data = array();
$data["appid"] = $this->_config["appid"];
$data["mch_id"] = $this->_config["mch_id"];
$data["nonce_str"] = $this->get_nonce_string();
$data["transaction_id"] = $transaction_id;
$data["out_refund_no"] = $out_refund_no;
$data["total_fee"] = $total_fee;
$data["refund_fee"] = $refund_fee;
$data["op_user_id"] = $op_user_id;
$result = $this->post(self::URL_REFUND, $data,true);
return $result;
}
public function downloadBill($bill_date,$bill_type = 'ALL'){
$data = array();
$data["appid"] = $this->_config["appid"];
$data["mch_id"] = $this->_config["mch_id"];
$data["bill_date"] = $bill_date;
$data["bill_type"] = $bill_type;
$data["nonce_str"] = $this->get_nonce_string();
$result = $this->post(self::URL_DOWNLOADBILL, $data);
return $result;
}
public function get_package($prepay_id) {
$data = array();
$data["appId"] = $this->_config["appid"];
$data["timeStamp"] = time();
$data["nonceStr"] = $this->get_nonce_string();
$data["package"] = "prepay_id=$prepay_id";
$data["signType"] = "MD5";
$data["paySign"] = $this->sign($data);
return $data;
}
public function get_back_data() {
$xml = file_get_contents("php://input");
$data = $this->xml2array($xml);
if ($this->validate($data)) {
return $data;
} else {
return null;
}
}
public function validate($data) {
if (!isset($data["sign"])) {
return false;
}
$sign = $data["sign"];
unset($data["sign"]);
return $this->sign($data) == $sign;
}
public function response_back($return_code="SUCCESS", $return_msg=null) {
$data = array();
$data["return_code"] = $return_code;
if ($return_msg) {
$data["return_msg"] = $return_msg;
}
$xml = $this->array2xml($data);
print $xml;
}
}
根据文章，需要对文件做一下改动：
1. 新建一个类文件Wechatpay.php 放到applicationlibraries里
2. 将证书，日志之类的文件放到wechatpay.php 统计目录下
3. 新建配置文件wxpay_config.php 保存商户号、appid、AppSecret、API key。将该文件放到applicationconfig目录下
2. 控制器里调用
链接里有讲的十分详细该怎么写。
其中有关于openid，因为我之前有获取过openid并把它放到session，所以在调用的时候直接从session获取就行了，十分方便。大家也可是尝试这种方法，
tips:在开发中遇到了一个问题，做到统一下单的时候，微信返回的报错信息是权限不足，请到商户后台配置。网上搜了下，很多人都遇到过这种问题，百度了一圈也没有实际解决方案。
最后，要吐槽一下腾讯！花了半天时间确认商户后台配置没问题，各个参数都没有问题，结果还是失败返回权限不足。结果联系腾讯，给了各个数据对方说稍等，半个小时后后就没问题了！
相关知识
卷积神经网络实现鸢尾花数据分类python代码实现
PHP完整的订单系统订单系统
web支付基础教程
PHP开发商城中的订单管理功能实现步骤
PHP编程实现高效在线订花系统：从需求分析到代码实现详解
基于微信小程序的鲜花预定系统的设计与实现
php毕业设计基于PHP实现的鲜花批发销售网站[包运行成功+文档]
花瓣支付可以扫微信吗
鲜花微信小程序系统详解与核心代码展示
使用PHP构建动态网站的技术指南
网址: 使用php的ci框架，实现微信支付（jsapi方式+完整代码） https://m.huajiangbk.com/newsview948922.html
| 上一篇: K8s 简单集成 SkyWalk |
下一篇: 支付宝合花付是什么？如何使用？ |
