分享微信支付 v3 版 php 解密代码

//微信原生支付

class Wxpay

{

/*

* 支付(小程序支付)

* @param type $sn        订单编号

* @param type $money  金额

* @param type $openid  用户小程序openid

* @return type

*/

public static function getPayParam($sn, $money, $openid)

{

$url = 'https://api.mch.weixin.qq.com/v3/pay/transactions/jsapi';

$notify_url = url('/api/weixin/notify');

$data = [];

$data['appid'] = Action::config(CONFIG_WXXCX, 'app_id');

$data['mchid'] = Action::config(CONFIG_WXXCX, 'mchid'); //商户号

$data['description'] = 'xxx'; //描述？

$data['out_trade_no'] = $sn; //商户系统内部订单号

$data['time_expire'] = date('Y-m-d') . 'T' . date('H:i:s', (time() + 1800)) . '+08:00'; //订单失效时间2018-06-08T10:34:56+08:00

$data['notify_url'] = $notify_url; //异步通知接口地址

$data['amount'] = ['total' => $money * 100, 'currency' => 'CNY']; //金额

$data['payer'] = ['openid' => $openid]; //用户

$re = self::wxCurl($url, $data, 'POST');

if (!isset($re['prepay_id'])) {

api_fail('参数获取失败');

}

$result = [];

$result['appId'] = Action::config(CONFIG_WXXCX, 'app_id');

$result['timeStamp'] = (string)time();

$result['nonceStr'] = uniqid();

$result['package'] = 'prepay_id=' . $re['prepay_id'];

$result['signType'] = 'RSA';

$result['paySign'] = self::getPaySign($result);

return $result;

}

/**

* 查询订单

* @param type $sn

*/

public static function select($sn, $return = false)

{

$mchid = Action::config(CONFIG_WXXCX, 'mchid'); //商户号

$url = 'https://api.mch.weixin.qq.com/v3/pay/transactions/out-trade-no/' . $sn . '?mchid=' . $mchid;

$re = self::wxCurl($url, [], 'GET');

if ($return) {

return $re;

}

if (isset($re['trade_state']) && $re['trade_state'] == 'SUCCESS') {

return true;

}

return false;

}

/**

* 关闭订单

* @param type $sn

*/

public static function close($sn)

{

$mchid = Action::config(CONFIG_WXXCX, 'mchid'); //商户号

$url = 'https://api.mch.weixin.qq.com/v3/pay/transactions/out-trade-no/' . $sn . '/close';

$re = self::wxCurl($url, ['mchid'=>$mchid], 'POST');

return true;

}

/**

* 退款

* @param type $sn

*/

public static function refund($order_sn,$refund_sn,$total,$refund,$msg='退款')

{

$url='https://api.mch.weixin.qq.com/v3/refund/domestic/refunds';

$data=[];

$data['notify_url']=url('ag/weixin/notify_refund');

$data['out_trade_no']=$order_sn;//订单号

$data['out_refund_no']=$refund_sn;//退款单号

$data['reason']=$msg;

$data['amount']=['refund'=>$refund*100,'total'=>$total*100,'currency'=>'CNY'];

$re = self::wxCurl($url, $data, 'POST');

return $re;

}

//请求

public static function wxCurl($url, $data = [], $method = 'GET')

{

$Authorization = self::getReSign($url, $data, $method);

$header = [

'Content-Type: application/json',

'Accept: application/json',

'User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.90 Safari/537.36 Edg/89.0.774.63',

'Authorization: ' . $Authorization

];

$redata = $data ? json_encode($data) : '';

$res = reCurl($url, $redata