[Nexus]

<?php

function getCountryByIP($ip=null){
  $ch=curl_init();
  $ip=$ip?:(
    isset($_SERVER['REMOTE_ADDR'])?
      $_SERVER['REMOTE_ADDR']:
      null
  );
  if(!$ip)
    return null;
        
  curl_setopt($ch, CURLOPT_URL, "http://ip-api.com/json/$ip"); 
  curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);
  $response=curl_exec($ch);
  curl_close($ch); 
  
  $response=json_decode($response,true);
  if(!is_array($response) or !isset($response['country']))
    return null;
  
  
  return $response['country'];
};

echo getCountryByIP()==='Russia'?'Its Russia':'Its not Russia';