[RaZVaN ^ xD]

pawn Код:

public OnPlayerUpdate(playerid)
{
if(GetPlayerSpeed =< 20)
{
SendClientMessage(playerid,"You have been banned for on foot speed hacks!");
Ban(playerid);
}
if(GetVehicleSpeed =< 800)
{
SendClientMessage(playerid,"You have been banned for Vehicle speed hacks!");
Ban(playerid);
}
return 1;
}

I lol'd at this example )

If player's speed is less than 20 or vehicle's speed is less than 800, he'll be banned.

Be careful, you did a second mistake :

This -

pawn Код:

if(x=< y)

Should be -

pawn Код:

if(x<= y)

In your code.