Is it possible to input the string from the url in the code.
"http://website.com?ip=123.com"
$statut = file_get_contents('http://www.example.com/index.php?Etat_Query&ip=',$ip,'&port=25565');
i want $ip to be replaced with the variable 123.com from the URL.
(Sorry my english is not the best)
Of course it is possible but you have to URL Encode your ip variable in the URL using this :
$encoded = urlencode('123.com');
For your specific example it's not necessary but if the URL is more complicated (like using '&'...) it will be necessary.
Then your $ip variable would just be :
$ip = $_GET['ip'];
Let me just warn you about a security issue that could occur using this method, like malicious php script that could be downloaded to your server.