[gtakillerIV]

This one should work:

PHP код:

CMD:zgod(playerid, params[])
{
    if(usergod == 0)
    {
        SetPlayerHealth(playerid, 99999);
        SetPlayerArmour(playerid, 99999);
        usergod = 1;
        GameTextForPlayer(playerid,"~w~GOD MODE: ~r~ON!",5000,5);
    }
    else if(usergod == 1)
    {
        SetPlayerHealth(playerid, 100);
        SetPlayerArmour(playerid, 0);
        usergod = 0;
        GameTextForPlayer(playerid,"~w~GOD MODE: ~r~OFF!",5000,5);
    }
    return 1;
} 


You should return 1 at the end of the code like I did.