[B3x7K]

pTask or SetTimerEx...

Just

timer[playeird] = SetTimerEx bla bla on player connect.

then

PHP Code:

public OnPlayerDisconnect(playerid, reason)
{
    for(new i=0; i < UsedTimers[playerid]; i++)
    {
        KillTimer(PTimer[playerid][i]);
                // Are you lol?, if you put this on loop, it stops looping because variable i greater than -1.
        //UsedTimers[playerid] = -1;
    }
       //place in here, because if the variable i is greater than your UsedTimers, then the script continue read this until return 1;
        UsedTimers[playerid] = -1;
        return 1;
}