errcode":41005,"errmsg":"media data missing hint: [05443954] rid: 65a101b0-53920c02-56542908"

$url = "https://api.weixin.qq.com/cgi-bin/media/upload?access_token=".$ACCESS_TOKEN."&type=image";
if(class_exists('\CURLFile')){
    $real_path = "D:\www_pro\WWW\winfully_cn_svn\public\balance.png";
    $data = array(
        "access_token" => $ACCESS_TOKEN,
        "media" => new \CURLFile($real_path),
     );
}else{
    echo "环境比较低无法上传";
    exit();
}
$result = $this->request_post($url,helper::jsonEncode($data));
halt($result);

private function request_post($url = '', $data = ''){
    $ch  = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER , true);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER , false);
    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST , false);
    curl_setopt($ch, CURLOPT_POST, 1);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
    $res  = curl_exec($ch);
    curl_close($ch);
    return $res;
 }