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//微信支付类
class WeiXinPay{
//=======【基本信息设置】=====================================
//微信公众号身份的唯一标识
protected $APPID = appid;//填写您的appid。微信公众平台里的
protected $APPSECRET = secret;
//受理商ID,身份标识
protected $MCHID = '11111111';//商户id
//商户支付密钥Key
protected $KEY = '192006250b4c09247ec02edce69f6a2d';
//回调通知接口
protected $APPURL = 'https://smart.afei.com/receivesuc';
//交易类型
protected $TRADETYPE = 'JSAPI';
//商品类型信息
protected $BODY = 'wx/book';
//微信支付类的构造函数
function __construct($openid,$outTradeNo,$totalFee){
$this->openid = $openid; //用户唯一标识
$this->outTradeNo = $outTradeNo; //商品编号
$this->totalFee = $totalFee; //总价
}
//微信支付类向外暴露的支付接口
public function pay(){
$result = $this->weixinapp();
return $result;
}
//对微信统一下单接口返回的支付相关数据进行处理
private function weixinapp(){
$unifiedorder=$this->unifiedorder();
$parameters=array(
'appId'=>$this->APPID,//小程序ID
'timeStamp'=>''.time().'',//时间戳
'nonceStr'=>$this->createNoncestr(),//随机串
'package'=>'prepay_id='.$unifiedorder['prepay_id'],//数据包
'signType'=>'MD5'//签名方式
);
$parameters['paySign']=$this->getSign($parameters);
return $parameters;
}
/*
*请求微信统一下单接口
*/
private function unifiedorder(){
$parameters = array(
'appid' => $this->APPID,//小程序id
'mch_id'=> $this->MCHID,//商户id
'spbill_create_ip'=>$_SERVER['REMOTE_ADDR'],//终端ip
'notify_url'=>$this->APPURL, //通知地址
'nonce_str'=> $this->createNoncestr(),//随机字符串
'out_trade_no'=>$this->outTradeNo,//商户订单编号
'total_fee'=>floatval($this->totalFee), //总金额
'open_id'=>$this->openid,//用户openid
'trade_type'=>$this->TRADETYPE,//交易类型
'body' =>$this->BODY, //商品信息
);
$parameters['sign'] = $this->getSign($parameters);
$xmlData = $this->arrayToXml($parameters);
$xml_result = $this->postXmlCurl($xmlData,'https://api.mch.weixin.qq.com/pay/unifiedorder',60);
$result = $this->xmlToArray($xml_result);
return $result;
}
//数组转字符串方法
protected function arrayToXml($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 $xml;
}
protected function xmlToArray($xml){
$array_data = json_decode(json_encode(simplexml_load_string($xml, 'SimpleXMLElement', LIBXML_NOCDATA)), true);
return $array_data;
}
//发送xml请求方法
private static function postXmlCurl($xml, $url, $second = 30)
{
$ch = curl_init();
//设置超时
curl_setopt($ch, CURLOPT_TIMEOUT, $second);
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE); //严格校验
//设置header
curl_setopt($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, $xml);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 20);
curl_setopt($ch, CURLOPT_TIMEOUT, 40);
set_time_limit(0);
//运行curl
$data = curl_exec($ch);
//返回结果
if ($data) {
curl_close($ch);
return $data;
} else {
$error = curl_errno($ch);
curl_close($ch);
throw new WxPayException("curl出错,错误码:$error");
}
}
/*
* 对要发送到微信统一下单接口的数据进行签名
*/
protected function getSign($Obj){
foreach ($Obj as $k => $v){
$Parameters[$k] = $v;
}
//签名步骤一:按字典序排序参数
ksort($Parameters);
$String = $this->formatBizQueryParaMap($Parameters, false);
//签名步骤二:在string后加入KEY
$String = $String."&key=".$this->KEY;
//签名步骤三:MD5加密
$String = md5($String);
//签名步骤四:所有字符转为大写
$result_ = strtoupper($String);
return $result_;
}
/*
*排序并格式化参数方法,签名时需要使用
*/
protected function formatBizQueryParaMap($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 $reqPar;
}
/*
* 生成随机字符串方法
*/
protected function createNoncestr($length = 32 ){
$chars = "abcdefghijklmnopqrstuvwxyz0123456789";
$str ="";
for ( $i = 0; $i < $length; $i++ ) {
$str.= substr($chars, mt_rand(0, strlen($chars)-1), 1);
}
return $str;
}
}
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class WinXinRefund extends WeiXinPay{
protected \$SSLCERT_PATH = 'cert/apiclient_cert.pem';//证书路径
protected \$SSLKEY_PATH = 'cert/apiclient_key.pem';//证书路径
protected \$opUserId = '1234567899';//商户号
function __construct($openid,$outTradeNo,$totalFee,$outRefundNo,$refundFee){
//初始化退款类需要的变量
$this->openid = $openid;
$this->outTradeNo = $outTradeNo;
$this->totalFee = $totalFee;
$this->outRefundNo = $outRefundNo;
$this->refundFee = $refundFee;
}
public function refund(){
//对外暴露的退款接口
$result = $this->wxrefundapi();
return $result;
}
private function wxrefundapi(){
//通过微信api进行退款流程
$parma = array(
'appid'=> $this->APPID,
'mch_id'=> $this->MCHID,
'nonce_str'=> $this->createNoncestr(),
'out_refund_no'=> $this->outRefundNo,
'out_trade_no'=> $this->outTradeNo,
'total_fee'=> $this->totalFee,
'refund_fee'=> $this->refundFee,
'op_user_id' => $this->opUserId,
);
$parma['sign'] = $this->getSign($parma);
$xmldata = $this->arrayToXml($parma);
$xmlresult = $this->postXmlSSLCurl($xmldata,'https://api.mch.weixin.qq.com/secapi/pay/refund');
$result = $this->xmlToArray($xmlresult);
return $result;
}
//需要使用证书的请求
function postXmlSSLCurl($xml,$url,$second=30)
{
$ch = curl_init();
//超时时间
curl_setopt($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($ch,CURLOPT_SSL_VERIFYHOST,FALSE);
//设置header
curl_setopt($ch,CURLOPT_HEADER,FALSE);
//要求结果为字符串且输出到屏幕上
curl_setopt($ch,CURLOPT_RETURNTRANSFER,TRUE);
//设置证书
//使用证书:cert 与 key 分别属于两个.pem文件
//默认格式为PEM,可以注释
curl_setopt($ch,CURLOPT_SSLCERTTYPE,'PEM');
curl_setopt($ch,CURLOPT_SSLCERT, $this->SSLCERT_PATH);
//默认格式为PEM,可以注释
curl_setopt($ch,CURLOPT_SSLKEYTYPE,'PEM');
curl_setopt($ch,CURLOPT_SSLKEY, $this->SSLKEY_PATH);
//post提交方式
curl_setopt($ch,CURLOPT_POST, true);
curl_setopt($ch,CURLOPT_POSTFIELDS,$xml);
$data = curl_exec($ch);
//返回结果
if($data){
curl_close($ch);
return $data;
}
else {
$error = curl_errno($ch);
echo "curl出错,错误码:$error"."<br>";
curl_close($ch);
return false;
}
}}
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