我将它上传到我的服务器后，Php curl不起作用

Question

It seems that curl works on my localhost but when I upload it to my server it stops working.

This is when i have it on localhost : And this is on the host provider server :

I am not a professional developer but i think there can be a problem with the host provider one.com

<?php
require 'kint/Kint.class.php';
$cURL = curl_init('162.243.44.4/server_list.json');
curl_setopt($cURL, CURLOPT_PORT, 3000);
curl_setopt($cURL, CURLOPT_RETURNTRANSFER, true);

$jsondata = curl_exec($cURL);
Kint::dump($jsondata);
$json = json_decode($jsondata, true);



function ping($host,$port=4000,$timeout=6)
    {
        $fsock = fsockopen($host, $port, $errno, $errstr, $timeout);
        if ( ! $fsock )
        {
            return 'Offline';
        }
        else
        {
            return 'Online';
        }
    }

    Kint::dump($json['servers']);
    foreach ($json['servers'] as $js){
        echo  $js['name'] . ' is ' . ping($js['ip']) . ' <br>';
    }
?>