[lelemaster]

I don't think you can, but why not just making this?

pawn Код:

stock GetPnameid(pid)
{
    new pname[MAX_PLAYER_NAME];
    GetPlayerName(pid, pname, sizeof(pname));
    return pname;
}

Anyways, you will still need to have the good player id. With your stock, it will always return name of the player id 0.