Can't join classes.

[Jiroxys7]

I've done this in the past. so perhaps I just forgot how to join the classes. But it's not working. Is this correct?:

NPC:

PHP Code:

//#CLIENTSIDE
function onCreated(){
  player.join("player_classtest"); 
  player.chat = "Class should be joined now";
} 


Class player_classtest:

PHP Code:

//#CLIENTSIDE
function onPlayerchats(){
  if(player.chat == "/testclass"){
    player.chat = "It works!";
    echo("It really works!");
  }
} 


What am I doing wrong this time?