gistfile1.txt

<?php

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'http://ip-api.com/json');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$info = json_decode(curl_exec($ch));

$ipAddress = $_SERVER['REMOTE_ADDR'];
if (array_key_exists('HTTP_X_FORWARDED_FOR', $_SERVER)) {
    $ipAddress = array_pop(explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']));
}

echo sprintf('Your ip address is : %s<br>', $ipAddress);
echo sprintf('Mi internal ip address is : %s<br>', $_SERVER['SERVER_ADDR']);
echo sprintf('Mi external ip address is : %s<br>', $info->query);