How server lists work's?

[clouf]

How server list work's?
How sites loading how many players are online?

 

[clouf]

bump

 

[Raggaer]

You just send a packet to the server and the server responds back.

On PHP for example you can have a look at this from cornex https://github.com/eklundkristoffer/OTServ

 

[Mkalo]

Simple example using luasocket:

local socket = require "socket"
local tcp = socket.tcp()
tcp:connect("underwar.org", 7171)
tcp:send(string.char(6, 0, 255, 255, 105, 110, 102, 111, 10))
while true do
    local msg, stat = tcp:receive()
    if stat == "closed" then
        break
    end
    print(msg)
end
tcp:close()

Will print:

<?xml version="1.0"?>
<tsqp version="1.0"><serverinfo uptime="15500" ip="158.69.23.129" servername="UnderWar" port="7171" location="Brazil" url="http://underwar.org" server="UnderWar~W.G" version="0.5.0" client="8.60"/><owner name="TGC" email="[email protected]"/><players online="819" max="1500" peak="843"/><monsters total="48008"/><map name="" author="" width="65000" height="65000"/><rates experience="1" magic="1" skill="1" loot="1" spawn="2"/><motd>Welcome to the UnderWar Server! TeamSpeak 3: ts3.underwar.org</motd></tsqp>