<?php
/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
namespace app\tools;
class Wxpay
{
public static $app_id = '111';
public static $mch_id = '222';
public static $app_secret = '333';
public static $app_key = '444';
public static $redirect_uri = 'www'; //授权之后跳转地址
/**
* 二维码扫码链接构造方式：
* weixin://wxpay/bizpayurl?sign=XXXXX&appid=XXXXXX&productid=XXXXXX×tamp=XXXXXX&noncestr=XXXXXX
*
appid 是字段名称：公众号id；字段来源：商户注册具有支付权限的公众号成功后即可获得；传入方式：由商户直接传入。
timestamp 是字段名称：时间戳；字段来源：商户生成从1970 年1 月1 日00：00：00 至今的秒数，即当前的时间；由商户生成后传入。取值范围：32 字符以下
noncestr 是字段名称：随机字符串；字段来源：商户生成的随机字符串；取值范围：长度为32 个字符以下。由商户生成后传入。取值范围：32 字符以下
productid 是字段名称：商品唯一id；字段来源：商户需要定义并维护自己的商品id，这个id 与一张订单等价，微信后台凭借该id 通过Post商户后台获取交易必须信息。由商户生成后传入。取值范围：32字符以下
sign 是字段名称：签名；字段来源：对前面的其他字段与appKey 按照字典序排序后，使用SHA1 算法得到的结果。由商户生成后传入。参与sign 签名的字段包括：appid、timestamp、noncestr、productid 以及appkey。
*/
public static function createUrl($amount, $orderSN, $goodName = '套餐1', $note = '')
{
$nonce_str = self::createNoncestr();
$time_stamp = time();
//访问微信获得信息
$url = "https://api.mch.weixin.qq.com/pay/unifiedorder";
$pp['appid'] = self::$app_id; //公众号appid
$pp['mch_id'] = self::$mch_id;
$pp['device_info'] = $orderSN;
$pp['body'] = $goodName;
$pp['nonce_str'] = $nonce_str;
$pp['out_trade_no'] = $orderSN;
$pp['total_fee'] = $amount * 100;
$pp['notify_url'] = self::$redirect_uri;
$pp['trade_type'] = "NATIVE";
$pp['time_stamp'] = $time_stamp;
$pp['sign'] = self::getSign($pp);
// v($pp);
$xml = self::arrayToXml($pp);
$xml_res = self::postXmlCurl($xml, $url);
$return_result = self::xmlToArray($xml_res); //把xml转为数组
// v($return_result);
return urlencode($return_result['code_url']);
}
/**
* 微信js支付
* @param type $param
*/
public static function getJsApiParameters($orderSN = '11', $goodName = '11', $amount = '1')
{
$nonce_str = self::createNoncestr();
$time_stamp = time();
// var_dump($nonce_str);exit;
//访问微信获得信息
$url = "https://api.mch.weixin.qq.com/pay/unifiedorder";
$openid = self::getOpenId();
var_dump($openid);
$pp['appid'] = self::$app_id; //公众号appid
$pp['mch_id'] = self::$mch_id;
$pp['device_info'] = $orderSN;
$pp['body'] = $goodName;
$pp['nonce_str'] = $nonce_str;
$pp['out_trade_no'] = $orderSN;
$pp['total_fee'] = $amount * 100;
$pp['notify_url'] = self::$redirect_uri;
$pp['trade_type'] = "JSAPI";
$pp['openid'] = $openid;
$pp['time_stamp'] = $time_stamp;
$pp['sign'] = self::getSign($pp);
// v($pp);
$xml = self::arrayToXml($pp);
$xml_res = self::postXmlCurl($xml, $url);
$return_result = self::xmlToArray($xml_res); //把xml转为数组
var_dump($return_result);
exit;
return urlencode($return_result['code_url']);
}
/**
* 获取openid
* @return type
*/
public static function getOpenId()
{
$code = $_GET['code'];
if ($code) {
$urlObj["appid"] = self::$app_id;
$urlObj["secret"] = self::$app_secret;
$urlObj["code"] = $code;
$urlObj["grant_type"] = "authorization_code";
$bizString = self::ToUrlParams($urlObj);
$url = "https://api.weixin.qq.com/sns/oauth2/access_token?{$bizString}";
//获取数据
$re = self::getOpenArrByCode($url);
return $re['open_id'];
} else {
$redirect_uri = 'http://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'] . $_SERVER['QUERY_STRING'];
$urlObj["appid"] = self::$app_id;
$urlObj["redirect_uri"] = $redirect_uri;
$urlObj["response_type"] = "code";
$urlObj["scope"] = "snsapi_base";
$urlObj["state"] = "STATE" . "#wechat_redirect";
$bizString = self::ToUrlParams($urlObj);
$url = "https://open.weixin.qq.com/connect/oauth2/authorize?{$bizString}";
Header("Location: $url");
exit;
}
}
/**
* 根据凑得获取 openid
* @param type $url
* @return type
*/
public static function getOpenArrByCode($url)
{
//初始化curl
$ch = curl_init();
$curlVersion = curl_version();
$ua = "WXPaySDK/3.0.9 (" . PHP_OS . ") PHP/" . PHP_VERSION . " CURL/" . $curlVersion['version'] . " " . self::$mch_id;
//设置超时
curl_setopt($ch, CURLOPT_TIMEOUT, 600);
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
curl_setopt($ch, CURLOPT_USERAGENT, $ua);
curl_setopt($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);
return $data;
}
/**
*
* 拼接签名字符串
* @param array $urlObj
*
* @return 返回已经拼接好的字符串
*/
public static function ToUrlParams($urlObj)
{
$buff = "";
foreach ($urlObj as $k => $v) {
if ($k != "sign") {
$buff .= $k . "=" . $v . "&";
}
}
$buff = trim($buff, "&");
return $buff;
}
/**
* 作用：生成签名
*/
public static function getSign($Obj)
{
$key = self::$app_key;
foreach ($Obj as $k => $v) {
$Parameters[$k] = $v;
}
//签名步骤一：按字典序排序参数
ksort($Parameters);
$String = self::formatBizQueryParaMap($Parameters, false);
//echo '【string1】'.$String.'</br>';
//签名步骤二：在string后加入KEY
$String = $String . "&key=" . $key;
//echo "【string2】".$String."</br>";
//签名步骤三：MD5加密
$String = md5($String);
//echo "【string3】 ".$String."</br>";
//签名步骤四：所有字符转为大写
$result_ = strtoupper($String);
//echo "【result】 ".$result_."</br>";
return $result_;
}
/**
* 作用：格式化参数，签名过程需要使用
*/
public static function formatBizQueryParaMap($paraMap, $urlencode)
{
$buff = "";
ksort($paraMap);
foreach ($paraMap as $k => $v) {
if ($urlencode) {
$v = urlencode($v);
}
// $buff .= strtolower($k) . "=" . $v . "&";
$buff .= $k . "=" . $v . "&";
}
$reqPar;
if (strlen($buff) > 0) {
$reqPar = substr($buff, 0, strlen($buff) - 1);
}
return $reqPar;
}
/**
* 作用：产生随机字符串，不长于32位
*/
public static function createNoncestr($length = 32)
{
$chars = "abcdefghijklmnopqrstuvwxyz0123456789";
$str = "";
for ($i = 0; $i < $length; $i++) {
$str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);
}
return $str;
}
/**
* 作用：array转xml
*/
public static function arrayToXml($arr)
{
$xml = "<xml>";
foreach ($arr as $key => $val) {
if (is_numeric($val)) {
$xml .= "<" . $key . ">" . $val . "</" . $key . ">";
} else {
$xml .= "<" . $key . "><![CDATA[" . $val . "]]></" . $key . ">";
}
}
$xml .= "</xml>";
return $xml;
}
/**
* 作用：以post方式提交xml到对应的接口url
*/
public static function postXmlCurl($xml, $url, $second = 30)
{
//初始化curl
$ch = curl_init();
//设置超时
curl_setopt($ch, CURLOPT_TIMEOUT, $second);
//这里设置代理，如果有的话
//curl_setopt($ch,CURLOPT_PROXY, '8.8.8.8');
//curl_setopt($ch,CURLOPT_PROXYPORT, 8080);
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false); //严格校验2
//设置header
curl_setopt($ch, CURLOPT_HEADER, false);
//要求结果为字符串且输出到屏幕上
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
//post提交方式
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $xml);
//运行curl
$data = curl_exec($ch);
//返回结果
if ($data) {
curl_close($ch);
return $data;
} else {
$error = curl_errno($ch);
echo "curl出错，错误码:$error" . "<br>";
echo "<a href='http://curl.haxx.se/libcurl/c/libcurl-errors.html'>错误原因查询</a></br>";
curl_close($ch);
return false;
}
}
/**
* 作用：将xml转为array
*/
public static function xmlToArray($xml)
{
//将XML转为array
$array_data = json_decode(json_encode(simplexml_load_string($xml, 'SimpleXMLElement', LIBXML_NOCDATA)), true);
return $array_data;
}
/**
* 微信支付回调
* @param Request $request
*/
public static function wxpayNotify()
{
$data = $request->all();
$postStr = file_get_contents("php://input");
$xmlArr = self::xmlToArray($postStr);
saveLog(json_encode($xmlArr), 'wxpay');
if ($xmlArr['result_code'] == 'SUCCESS' && $xmlArr['return_code'] == 'SUCCESS') {
$out_trade_no = $xmlArr['out_trade_no'];
$total_feel = $xmlArr['total_fee'] / 100;
$trade_no = $xmlArr['transaction_id'];
$sign = $xmlArr['sign'];
unset($xmlArr['sign']);
$tmpSign = self::getSign($xmlArr);
if ($out_trade_no && $total_feel && $tmpSign == $sign) {
Userorder::upPayOrder($out_trade_no, $total_feel, $trade_no, $xmlArr, 2);
}
echo "success";
}
echo "fail";
}
}
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