微信小程序
/*
* 微信退款-适用于微信公号及小程序
* $orderid 订单ID
* $ordernum 订单编号
* $totalprice 订单金额
* $refundmoney 退款金额
* $refund_desc 备注信息
*/
public function wxrefund($orderid,$ordernum,$totalprice,$refundmoney,$refund_desc=''){
$key = config('wechat.mch_key');//商户密钥未设置
if(!$refundmoney || $refundmoney<=0){
return 3; //退款金额不能小于0
}
$pars = array();
$pars['appid'] = config('wechat.appid');
$pars['mch_id'] = config('wechat.mch_id');
$pars['nonce_str'] = random(32);
$pars['out_trade_no'] = $ordernum;
$pars['out_refund_no'] = $ordernum. '_' . rand(1000, 9999);
$pars['total_fee'] = $totalprice * 100;
$pars['refund_fee'] = $refundmoney * 100;
if($refund_desc) $pars['refund_desc'] = $refund_desc;
ksort($pars, SORT_STRING);
$string1 = '';
foreach ($pars as $k => $v) {
$string1 .= "{$k}={$v}&";
}
$string1 .= "key=" . $key;
$pars['sign'] = strtoupper(md5($string1));
$xml = $this->array2xml($pars);
if($this->getOs()==1){ //linux系统
$sslcert = '../public/wxcert/apiclient_cert.pem';
$sslkey = '../public/wxcert/apiclient_key.pem';
}else{
$sslcert = str_replace('//','/',ROOT_PATH.str_replace(PRE_URL,'','public\wxcert\apiclient_cert.pem'));
$sslkey = str_replace('//','/',ROOT_PATH.str_replace(PRE_URL,'','public\wxcert\apiclient_key.pem'));
}
$ch = curl_init ();
$MENU_URL="https://api.mch.weixin.qq.com/secapi/pay/refund";
curl_setopt ( $ch, CURLOPT_URL, $MENU_URL );
curl_setopt ( $ch, CURLOPT_CUSTOMREQUEST, "POST" );
curl_setopt ( $ch, CURLOPT_SSL_VERIFYPEER, FALSE );
curl_setopt ( $ch, CURLOPT_SSL_VERIFYHOST, FALSE );
curl_setopt($ch,CURLOPT_SSLCERT,$sslcert);
curl_setopt($ch,CURLOPT_SSLKEY,$sslkey);
curl_setopt ( $ch, CURLOPT_FOLLOWLOCATION, 1 );
curl_setopt ( $ch, CURLOPT_AUTOREFERER, 1 );
curl_setopt ( $ch, CURLOPT_POSTFIELDS, $xml );
curl_setopt ( $ch, CURLOPT_RETURNTRANSFER, true );
$info = curl_exec ( $ch );
if (curl_errno ( $ch )) {
return array('status'=>0,'msg'=>curl_error ( $ch ));
}
curl_close ( $ch );
$resp = (array)(simplexml_load_string($info,'SimpleXMLElement', LIBXML_NOCDATA));
if($resp['return_code'] == 'SUCCESS' && $resp['result_code']=='SUCCESS'){
return 1;
}else{
return 2;
}
}
注：$sslcert和$sslkey为证书地址，linux和windows系统下写法不同，需自行调试
获取系统类型请参考：https://hongkediguo.com/jishufenxiang/5.html
红客帝国
2021-09-23 20:38