[Konstantinos]

As you can see before DROGA dialogid checking, there are extra closed brackets so it's like checking dialog and doing stuff outside of the callback.

Keep each "case X:" at the same column (2 tabs (8 spaces) right):

PHP код:

public OnDialogResponse(playerid, dialogid, response, listitem, inputtext[])
{
    switch (dialogid)
    {
        case DIALOG_ARMI:
        {
            if (response)
            {
                switch (listitem)
                {
                    case 0:
                    {
                        if (GetPlayerMoney(playerid) < 1000) return SendClientMessage(playerid, 0xAA3333AA, "Non hai abbastanza denaro.!");
                        SendClientMessage(playerid, 0xAA3333AA, "Hai comprato un'AK47!");
                        GivePlayerMoney(playerid, -1000);
                        GivePlayerWeapon(playerid, 30, 100);
                    }
                    case 1:
                    {
                        if (GetPlayerMoney(playerid) < 1000) return SendClientMessage(playerid, 0xAA3333AA, "Non hai abbastanza denaro.!");
                        SendClientMessage(playerid, 0xAA3333AA, "Hai comprato una M4!");
                        GivePlayerMoney(playerid, -1000);
                        GivePlayerWeapon(playerid, 31, 100);
                    }
                    case 2:
                    {
                        if (GetPlayerMoney(playerid) < 1000) return SendClientMessage(playerid, 0xAA3333AA, "Non hai abbastanza denaro.!");
                        SendClientMessage(playerid, 0xAA3333AA, "Hai comprato una desert eagle!");
                        GivePlayerMoney(playerid, -1000);
                        GivePlayerWeapon(playerid, 24, 100);
                    }
                }
            }
        }
        case DIALOG_DROGA:
        {
            if (response)
            {
                switch (listitem)
                {
                    case 0:
                    {
                        if (GetPlayerMoney(playerid) < 1000) return SendClientMessage(playerid, 0xAA3333AA, "Non hai abbastanza denaro.!");
                        SendClientMessage(playerid, 0xAA3333AA, "Hai comprato la Marijuana!");
                                GivePlayerMoney(playerid, -1000);
                    }
                    case 1:
                    {
                        if (GetPlayerMoney(playerid) < 1000) return SendClientMessage(playerid, 0xAA3333AA, "Non hai abbastanza denaro.!");
                        SendClientMessage(playerid, 0xAA3333AA, "Hai comprato la metanfetamina!");
                        GivePlayerMoney(playerid, -1000);
                    }
                    case 2:
                    {
                        if (GetPlayerMoney(playerid) < 1000) return SendClientMessage(playerid, 0xAA3333AA, "Non hai abbastanza denaro.!");
                        SendClientMessage(playerid, 0xAA3333AA, "Hai comprato la cocaina!");
                        GivePlayerMoney(playerid, -1000);
                    }
                }
            }
        }
        default: return 0; // dialogid not found, search in other scripts
    }
    return 1; // dialogid was found
}