简易的微信支付封装类,可以jsapi支付+native支付+h5支付
程序员文章站
2024-01-01 16:42:04
...
适用于tp3.2
<?php
error_reporting(E_ALL);
ini_set('display_errors', '1');
// 定义时区
ini_set('date.timezone', 'Asia/Shanghai');
class Weixinpay
{
// 定义配置项
private $config = array(
'APPID' => '', // 微信支付APPID
'MCHID' => '', // 微信支付MCHID 商户收款账号
'KEY' => '', // 微信支付KEY
'APPSECRET' => '', //公众帐号secert
'NOTIFY_URL' => 'http://baijunyao.com/Api/WeixPay/notify/order_number/', // 接收支付状态的连接 改成自己的域名
);
// 构造函数
public function __construct()
{
// 如果是在thinkphp中 那么需要补全/Application/Common/Conf/config.php中的配置
// 如果不是在thinkphp框架中使用;那么注释掉下面一行代码;直接补全 private $config 即可
$this->config = C('WEIXINPAY_CONFIG');
}
/**
*
* 产生随机字符串,不长于32位
* @param int $length
* @return 产生的随机字符串
*/
public function getNonceStr($length = 32)
{
$chars = "abcdefghijklmnopqrstuvwxyz0123456789";
$str = "";
for ($i = 0; $i < $length; $i++) {
$str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);
}
return $str;
}
/**
* 统一下单
* @param array $order 订单 必须包含支付所需要的参数 body(产品描述)、total_fee(订单金额)、out_trade_no(订单号)、product_id(产品id)、trade_type(类型:JSAPI,NATIVE,APP)
*/
public function unifiedOrder($order)
{
// 获取配置项
$weixinpay_config = $this->config;
$config = array(
'appid' => $weixinpay_config['APPID'],
'mch_id' => $weixinpay_config['MCHID'],
// 'nonce_str' => 'test',
'nonce_str' => $this->getNonceStr(),
'spbill_create_ip' => get_client_ip(0, true),
// 'spbill_create_ip' => '192.168.0.1',
'notify_url' => $weixinpay_config['NOTIFY_URL'],
);
// 合并配置数据和订单数据
$data = array_merge($order, $config);
// 生成签名
$sign = $this->makeSign($data);
$data['sign'] = $sign;
$xml = $this->toXml($data);
$url = 'https://api.mch.weixin.qq.com/pay/unifiedorder'; //接收xml数据的文件
$header[] = "Content-type: text/xml"; //定义content-type为xml,注意是数组
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); // 兼容本地没有指定curl.cainfo路径的错误
curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $xml);
$response = curl_exec($ch);
if (curl_errno($ch)) {
// 显示报错信息;终止继续执行
die(curl_error($ch));
}
curl_close($ch);
$result = $this->toArray($response);
// print_R($result);exit;
// 显示错误信息
if ($result['return_code'] == 'FAIL') {
die($result['return_msg']);
}
$result['sign'] = $sign;
// $result['nonce_str'] = 'test';
return $result;
}
/**
* 验证
* @return array 返回数组格式的notify数据
*/
public function notify()
{
// 获取xml
$xml = file_get_contents('php://input', 'r');
// 转成php数组
$data = $this->toArray($xml);
// 保存原sign
$data_sign = $data['sign'];
// sign不参与签名
unset($data['sign']);
$sign = $this->makeSign($data);
// 判断签名是否正确 判断支付状态
if ($sign === $data_sign && $data['return_code'] == 'SUCCESS' && $data['result_code'] == 'SUCCESS') {
$result = $data;
} else {
$result = false;
}
// 返回状态给微信服务器
if ($result) {
$str = '<xml><return_code><![CDATA[SUCCESS]]></return_code><return_msg><![CDATA[OK]]></return_msg></xml>';
} else {
$str = '<xml><return_code><![CDATA[FAIL]]></return_code><return_msg><![CDATA[签名失败]]></return_msg></xml>';
}
echo $str;
return $result;
}
/**
* 输出xml字符
* @throws WxPayException
**/
public function toXml($data)
{
if (!is_array($data) || count($data) <= 0) {
throw new WxPayException("数组数据异常!");
}
$xml = "<xml>";
foreach ($data as $key => $val) {
if (is_numeric($val)) {
$xml .= "<" . $key . ">" . $val . "</" . $key . ">";
} else {
$xml .= "<" . $key . "><![CDATA[" . $val . "]]></" . $key . ">";
}
}
$xml .= "</xml>";
return $xml;
}
/**
* 生成签名
* @return 签名,本函数不覆盖sign成员变量,如要设置签名需要调用SetSign方法赋值
*/
public function makeSign($data)
{
// 去空
$data = array_filter($data);
//签名步骤一:按字典序排序参数
ksort($data);
$string_a = http_build_query($data);
$string_a = urldecode($string_a);
//签名步骤二:在string后加入KEY
$config = $this->config;
$string_sign_temp = $string_a . "&key=" . $config['KEY'];
//签名步骤三:MD5加密
$sign = md5($string_sign_temp);
// 签名步骤四:所有字符转为大写
$result = strtoupper($sign);
return $result;
}
/**
* 将xml转为array
* @param string $xml xml字符串
* @return array 转换得到的数组
*/
public function toArray($xml)
{
//禁止引用外部xml实体
libxml_disable_entity_loader(true);
$result = json_decode(json_encode(simplexml_load_string($xml, 'SimpleXMLElement', LIBXML_NOCDATA)), true);
return $result;
}
public function GetOpenid()
{
// 获取配置项
$config = $this->config;
// 如果没有get参数没有code;则重定向去获取openid;
if (!isset($_GET['code'])) {
// 获取订单号
$orderno = I('orderno');
// 返回的url
//触发微信返回code码
$redirect_uri = urlencode('http://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI']); //.$_SERVER['QUERY_STRING']
// $redirect_uri = urlencode($redirect_uri);
$url = 'https://open.weixin.qq.com/connect/oauth2/authorize?appid=' . $config['APPID'] . '&redirect_uri=' . $redirect_uri . '&response_type=code&scope=snsapi_base&state=STATE#wechat_redirect';
redirect($url);
} else {
// 如果有code参数;则表示获取到openid
$code = I('get.code');
// 取出订单号
$out_trade_no = I('get.state', 0, 'intval');
// 组合获取prepay_id的url
$url = 'https://api.weixin.qq.com/sns/oauth2/access_token?appid=' . $config['APPID'] . '&secret=' . $config['APPSECRET'] . '&code=' . $code . '&grant_type=authorization_code';
$ch = curl_init();
//设置超时
curl_setopt($ch, CURLOPT_TIMEOUT, 360000);
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
curl_setopt($ch, CURLOPT_HEADER, false);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
//运行curl,结果以jason形式返回
$res = curl_exec($ch);
curl_close($ch);
//取出openid
$data = json_decode($res, true);
$openid = $data['openid'];
return $openid;
}
}
/**
* 获取jssdk需要用到的数据
* @return array jssdk需要用到的数据
*/
public function getParameters()
{
// 获取配置项
$config = $this->config;
// 如果没有get参数没有code;则重定向去获取openid;
if (!isset($_GET['code'])) {
// 获取订单号
$out_trade_no = I('get.out_trade_no', 1, 'intval');
// 返回的url
$redirect_uri = U('Api/Weixinpay/pay', '', '', true);
$redirect_uri = urlencode($redirect_uri);
$url = 'https://open.weixin.qq.com/connect/oauth2/authorize?appid=' . $config['APPID'] . '&redirect_uri=' . $redirect_uri . '&response_type=code&scope=snsapi_base&state=' . $out_trade_no . '#wechat_redirect';
redirect($url);
} else {
// 如果有code参数;则表示获取到openid
$code = I('get.code');
// 取出订单号
$out_trade_no = I('get.state', 0, 'intval');
// 组合获取prepay_id的url
$url = 'https://api.weixin.qq.com/sns/oauth2/access_token?appid=' . $config['APPID'] . '&secret=' . $config['APPSECRET'] . '&code=' . $code . '&grant_type=authorization_code';
// curl获取prepay_id
$result = $this->curl_get_contents($url);
$result = json_decode($result, true);
$openid = $result['openid'];
// 订单数据 请根据订单号out_trade_no 从数据库中查出实际的body、total_fee、out_trade_no、product_id
$order = array(
'body' => 'test', // 商品描述(需要根据自己的业务修改)
'total_fee' => 1, // 订单金额 以(分)为单位(需要根据自己的业务修改)
'out_trade_no' => $out_trade_no, // 订单号(需要根据自己的业务修改)
'product_id' => '1', // 商品id(需要根据自己的业务修改)
'trade_type' => 'JSAPI', // JSAPI公众号支付
'openid' => $openid, // 获取到的openid
);
// 统一下单 获取prepay_id
$unified_order = $this->unifiedOrder($order);
// 获取当前时间戳
$time = time();
// 组合jssdk需要用到的数据
$data = array(
'appId' => $config['APPID'], //appid
'timeStamp' => strval($time), //时间戳
'nonceStr' => $unified_order['nonce_str'], // 随机字符串
'package' => 'prepay_id=' . $unified_order['prepay_id'], // 预支付交易会话标识
'signType' => 'MD5', //加密方式
);
// 生成签名
$data['paySign'] = $this->makeSign($data);
return $data;
}
}
/**
* 生成支付二维码
* @param array $order 订单 必须包含支付所需要的参数 body(产品描述)、total_fee(订单金额)、out_trade_no(订单号)、product_id(产品id)、trade_type(类型:JSAPI,NATIVE,APP)
*/
public function pay($order)
{
$result = $this->unifiedOrder($order);
$decodeurl = urldecode($result['code_url']);
qrcode($decodeurl);
}
public function mweb($order)
{
$result = $this->unifiedOrder($order);
$redirect_uri = U('order/readx', '', '', true);
$redirect_uri .= '?orderno=' . $order['out_trade_no'];
$url = $result['mweb_url'];
$url .= '&redirect_url=' . urlencode($redirect_uri);
echo '<script>window.location.href="' . $url . '"</script>';
}
/**
*
* 获取jsapi支付的参数
* @param array $UnifiedOrderResult 统一支付接口返回的数据
* @throws WxPayException
*
* @return json数据,可直接填入js函数作为参数
*/
public function GetJsApiParameters($OrderResult)
{
$config = $this->config;
$jsapi = [];
$jsapi['appId'] = $config['appid'];
$timeStamp = time();
$jsapi['timeStamp'] = "$timeStamp";
$jsapi['nonceStr'] = $this->getNonceStr();
$jsapi['package'] = $OrderResult['prepay_id'];
$jsapi['signType'] = 'MD5';
$jsapi['paySign'] = $OrderResult['paySign'];
$parameters = json_encode($jsapi);
return $parameters;
}
public function jspay($order)
{
$config = $this->config;
$openId = $this->GetOpenid();
$openId or exit('登录失败!');
// 统一下单 获取prepay_id
$order['openid'] = $openId;
$unified_order = $this->unifiedOrder($order);
// 获取当前时间戳
$time = time();
// 组合jssdk需要用到的数据
$data = array(
'appId' => $config['APPID'], //appid
'timeStamp' => strval($time), //时间戳
'nonceStr' => $unified_order['nonce_str'], // 随机字符串
'package' => 'prepay_id=' . $unified_order['prepay_id'], // 预支付交易会话标识
'signType' => 'MD5', //加密方式
);
// 生成签名
$data['paySign'] = $this->makeSign($data);
$data = json_encode($data);
return $data;
}
/**
* curl 请求http
*/
public function curl_get_contents($url)
{
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url); //设置访问的url地址
// curl_setopt($ch,CURLOPT_HEADER,1); //是否显示头部信息
curl_setopt($ch, CURLOPT_TIMEOUT, 5); //设置超时
curl_setopt($ch, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']); //用户访问代理 User-Agent
curl_setopt($ch, CURLOPT_REFERER, $_SERVER['HTTP_HOST']); //设置 referer
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1); //跟踪301
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); //返回结果
$r = curl_exec($ch);
curl_close($ch);
return $r;
}
}
调用方式
<?php
namespace Home\Controller;
use Think\Controller;
class PayController extends BaseController
{
//生成微信支付二维码
public function wxpay()
{
$orderno = I('orderno'); //订单号
$info = getorderbyno($orderno); //订单详情
if ($info['state'] == 0) {
$order = array(
'body' => '起名网',
'detail' => '起名网',
'total_fee' => $info['price'] * 100, //分
'out_trade_no' => strval($orderno),
'product_id' => $info['id'],
);
if (Mobile_Detect()->isWechat()) {
header("Content-type: text/html; charset=utf-8");
$parameters = wxjspay($order);
$url = "/order/mlist.html?orderno=$orderno";
$this->assign('successurl', $url);
$this->assign('errorurl', $url);
$this->assign('jsApiParameters', $parameters);
$this->display('wxjsapi');
} else if (Mobile_Detect()->isMobile()) {
wxh5pay($order);
} else {
weixinpay($order);
}
} else {
echo '已付款';
}
}
//异步回调
public function wxnotify()
{
// 导入微信支付sdk
Vendor('Weixinpay.Weixinpay');
$wxpay = new \Weixinpay();
$result = $wxpay->notify();
//$result['out_trade_no'] = 'CS151494351797648';
if ($result) {
// 验证成功 修改数据库的订单状态等 $result['out_trade_no']为订单id
$this->handleOrder($result['out_trade_no']);
}
}
/**
* 处理订单
* @param [type] $order_no [订单编号]
* @return [type] [description]
*/
private function handleOrder($order_no)
{
$res = M('order')->where("order_no='%s'", array($order_no))->field("state,id")->find();
if ($res['state'] == 0) {
$data = array(
'state' => 1,
'paytime' => time(),
);
M('order')->where(array('id' => $res['id']))->save($data);
}
}
}