微信的新版本接口 v3/merchant/media/upload图片上传在PHP实现图片上传的时候遇到问题一直没找到解决方案，现在刚调试通了，还没有整理，贴一下核心的代码。
$api = 'https://api.mch.weixin.qq.com/v3/merchant/media/upload';$boundary = '7derenufded'; //分割符号$PSize = filesize('./Public/images/ok.png');$picturedata = fread(fopen('./Public/images/ok.png', "r"), $PSize);$sign = hash('sha256',$picturedata);$strdata = [ 'filename'=>'ok.png', 'sha256'=>$sign,];$boundarystr = "--{$boundary}\r\n";// $out是post的内容 $out = $boundarystr;$out .= 'Content-Disposition: form-data; name="meta"'."\r\n";$out .= 'Content-Type: application/json; charset=UTF-8'."\r\n";$out .= "\r\n";$filestr = json_encode($strdata);$out .= "".$filestr."\r\n";$out .= $boundarystr;$out .= 'Content-Disposition: form-data; name="file"; filename="ok.png"'."\n";$out .= 'Content-Type: image/jpeg;'."\r\n";$out .= "\r\n";$out .= $picturedata."\r\n";$out .= "--{$boundary}--\r\n";// ----- 下面是签名过程 -----------$url = $api;$method = 'POST';$http_method = $method;$timestamp = time();$nonce = randCode(32,3);$mch_private_key = file_get_contents($this->private_key);$merchant_id = $this->mch_id;$serial_no = $this->serial_no;$url_parts = parse_url($url);$canonical_url = ($url_parts['path'] . (!empty($url_parts['query']) ? "?${url_parts['query']}" : ""));$message = $http_method."\n". $canonical_url."\n". $timestamp."\n". $nonce."\n". $filestr. "\n";openssl_sign($message, $raw_sign, $mch_private_key, 'sha256WithRSAEncryption');$sign = base64_encode($raw_sign);$schema = 'WECHATPAY2-SHA256-RSA2048';$token = sprintf('mchid="%s",nonce_str="%s",timestamp="%d",serial_no="%s",signature="%s"', $merchant_id, $nonce, $timestamp, $serial_no, $sign);// ----- 是请求头部--------$header = [ 'Authorization: '.$schema. ' '.$token, 'Accept: application/json', "Content-Type: multipart/form-data;boundary=".$boundary, 'User-Agent: XXXXXXXXX',];// 最后带上头部和POST内容 发送CURL请求吧。 |
上传成功
可能出现的问题
q1:一直报错验签失败。
这个情况可能是微信在没有获取签名的json数据，这里要注意，post的内容是需要\r\n来换行的， 而签名里是用的\n换行，我被这里坑了一天了！！！！
