微信支付回调返回的参数(POST) Wechatpay-Serial(header) Wechatpay-Signature(header) Wechatpay-Timestamp(header) Wechatpay-Nonce(header) 主体(body) 验证签名 $verify=$smpw->_sign_verify([$timestamp, $nonce, $body], $signature); if ($verify==1){ echo 'ok'; }else echo 'failure'; /** * 支付回调(验证签名 * @...