PHP Code:
function onActionServerSide() {
if (params[0] == "test") {
player.nick = params[1];
player.guild = params[2];
}
}
//#CLIENTSIDE
//gui stuff
function button1.onAction() {
triggerserver("gui",this.name,"test",login_nickname1.text,login_nickname2.text);
}
GUI controls are clientside, so you can't access their data from the server, thus you pass them in parameters.