$xmlResult = file_get_contents("php://input");//获取微信的数据
$result = $this->xmlToArray($xmlResult);//将xml转成数组
// 将加密的数据解密,方法在下面
$reqInfo = $this->refund_decrypt($result[‘req_info‘]);
/*
* 退款通知解密
* @Author WangZhaoBo
* @param $str 微信同步的加密串req_info
* @param $key 商户key
*/
public function refund_decrypt($str) {
$key = md5($this->appSecret);
$str = base64_decode($str);
$str = mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $key, $str, MCRYPT_MODE_ECB);
$block = mcrypt_get_block_size(‘rijndael_128‘, ‘ecb‘);
$pad = ord($str[($len = strlen($str)) - 1]);
$len = strlen($str);
$pad = ord($str[$len - 1]);
return substr($str, 0, strlen($str) - $pad);
}
微信退款通知,退款回调数据解密