php 调用微信上传临时素材接口 {“errcode”:41005,”errmsg”:”media data missing hint”}

原因：由于PHP5.6以前与之后的版本curl_setopt有差异。PHP5.6以后不再支持”@文件路径”的方式。

$picPath= "public\public\upload\xxx.png" ;//绝对路径图片地址

完整代码

 //上传临时素材

        $url="https://api.weixin.qq.com/cgi-bin/media/upload?access_token=".$token."&type=".$type;

        //2、同步到微信服务器

        if(class_exists('\CURLFile')){  //7.0

            $data = ['media' => new \CURLFile($picPath)];

        }else{  //5.6以及5.6以下

            $data = array('media' => '@'.$picPath);

        }

        $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);

        $wxrs_id_card=json_decode($res,true);

        $id_card =$wxrs_id_card['media_id'];  //得到media_id

还有一个是FuelPHP 会出现的问题，代码加一行

if(class_exists('\CURLFile')){

    $data = ['media' => new \CURLFile($media)];

}else{

    $data = ['media' => "@{$media}"];

}

$data = ['form-data' => $data];

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