[fordawinzz]

pawn Код:

new players = 0;

public OnPlayerConnect(playerid)
{
     players++;
     printf("There are currently %d players online.", players);
     return 1;
}
public OnPlayerDisconnect(playerid)
{
     players--;
     printf("There are currently %d players online.", players);
     return 1;
}

This is a right example.