[Weirdosport]

Not sure what that would do... it's gonna return -5 whatever the outcome. If you're trying to see if a player is a Passenger:

pawn Код:

IsPassenger(playerid)
{
   if(GetPlayerState(playerid) == PLAYER_STATE_PASSENGER) return 1;
   return 0;
}

But this is fairly pointless, as you could just use GetPlayerState without wrapping it up in a function.