微信公众号获取微信头像很慢 使用curl下载改善

curl下载图片,微信头像等

     /**
     * 文件下载
     * @param  [type] $url  [下载链接包含协议]
     * @param  [type] $absolute_path [本地绝对路径包含扩展名]
     * @return [type]       [description]
     */
    public function download($url, $absolute_path = '')
    {
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 30);
        $file = curl_exec($ch);
        curl_close($ch);
        $resource = fopen($absolute_path, 'a');
        fwrite($resource, $file);
        fclose($resource);
    }