PHP微信支付退款功能实现及订单创建类代码（附带调用示例）

【实例简介】

//使用方法一:

* 配置好自己的参数,注意这里的两个证书路径得根据你自己的项目证书路径来写,同时存放证书的目录要开放可读权限

* 单纯的支付不需要证书 , 退款的时候需要证书

$config &＃61; array(

&＃39;appid&＃39;&＃61;> &＃39;wx123456789876&＃39;,

&＃39;mch_id&＃39; &＃61;> &＃39;123456789&＃39;,

&＃39;pay_apikey&＃39; &＃61;> &＃39;123456789876123456789876123456789876&＃39;,

&＃39;api_cert&＃39;&＃61;> getcwd().&＃39;/cert/apiclient_cert.pem&＃39;,

&＃39;api_key&＃39;&＃61;> getcwd().&＃39;/cert/apiclient_key.pem&＃39;

);

$wxpay &＃61; new WxPay($config);//初始化类(同时传递参数)

$data &＃61; $wxpay->wxpay($openid,$total_fee,$body,$order_sn);//微信支付,将返回值$data(json格式)返回给页面,进行JSAPI支付

$wxpay->refund($transaction_id,$out_refund_no,$total_fee,$refund_fee);//微信退款

//使用方法二:

$wxpay &＃61; new WxPay();//初始化类

$wxpay->appid &＃61; &＃39;wx123456789876&＃39;;//配置参数

$wxpay->mch_id &＃61; &＃39;123456789&＃39;;

$wxpay->pay_apikey &＃61; &＃39;123456789876123456789876123456789876&＃39;;

$wxpay->api_cert &＃61; getcwd().&＃39;/cert/apiclient_cert.pem&＃39;;

$wxpay->api_key &＃61; getcwd().&＃39;/cert/apiclient_key.pem&＃39;;

$data &＃61; $wxpay->wxpay($openid,$total_fee,$body,$order_sn);//微信支付,将返回值$data(json格式)返回给页面,进行JSAPI支付

$wxpay->refund($transaction_id,$out_refund_no,$total_fee,$refund_fee);//微信退款

【实例截图】无

【核心代码】

public function refund($transaction_id,$out_refund_no,$total_fee,$refund_fee){

$config &＃61; $this->config;

//退款参数

$refundorder &＃61; array(

&＃39;appid&＃39;            &＃61;> $config[&＃39;appid&＃39;],

&＃39;mch_id&＃39;        &＃61;> $config[&＃39;mch_id&＃39;],

&＃39;nonce_str&＃39;        &＃61;> self::getNonceStr(),

&＃39;transaction_id&＃39;&＃61;> $transaction_id,

&＃39;out_refund_no&＃39;    &＃61;> $out_refund_no,

&＃39;total_fee&＃39;        &＃61;> $total_fee * 100,

&＃39;refund_fee&＃39;    &＃61;> $refund_fee * 100

);

$refundorder[&＃39;sign&＃39;] &＃61; self::makeSign($refundorder);

//请求数据,进行退款

$xmldata &＃61; self::array2xml($refundorder);

$url &＃61; &＃39;https://api.mch.weixin.qq.com/secapi/pay/refund&＃39;;

$res &＃61; self::curl_post_ssl($url, $xmldata);

if(!$res){

return array(&＃39;status&＃39;&＃61;>0, &＃39;msg&＃39;&＃61;>"Can&＃39;t connect the server" );

}

// 这句file_put_contents是用来查看服务器返回的结果 测试完可以删除了

//file_put_contents(&＃39;./log3.txt&＃39;,$res,FILE_APPEND);

$content &＃61; self::xml2array($res);

if(strval($content[&＃39;result_code&＃39;]) &＃61;&＃61; &＃39;FAIL&＃39;){

return array(&＃39;status&＃39;&＃61;>0, &＃39;msg&＃39;&＃61;>strval($content[&＃39;err_code&＃39;]).&＃39;:&＃39;.strval($content[&＃39;err_code_des&＃39;]));

}

if(strval($content[&＃39;return_code&＃39;]) &＃61;&＃61; &＃39;FAIL&＃39;){

return array(&＃39;status&＃39;&＃61;>0, &＃39;msg&＃39;&＃61;>strval($content[&＃39;return_msg&＃39;]));

}

return $content;

}