[Boolean]

pawn Код:

public OnPlayerConnect(playerid)
{
    new query[100];
    format(query, sizeof(query),"SELECT * FROM Accounts WHERE username = '%s'", GN(playerid));
    mysql_query(query);
    mysql_store_result();
    if(mysql_num_rows() != 0) {
        ShowPlayerDialog(playerid, DIALOG_REGISTER, DIALOG_STYLE_PASSWORD, "Authentication", "This account appears not to be in the database.\nPlease register your account by typing in a password below.", "Register", "Quit");
    } else {
        ShowPlayerDialog(playerid, DIALOG_LOGIN, DIALOG_STYLE_PASSWORD, "Authentication", "This account appears to be in the database\nYou can login by typing you password in below.", "Login", "Quit");
    }
    mysql_free_result();
    return true;
}

pawn Код:

if(dialogid == DIALOG_REGISTER) {
        if(!response) {
            SendClientMessage(playerid, 0xFFFFFFFF, "You have clicked on cancel.");
            Kick(playerid);
        }
        SetPlayerCameraPos(playerid, 1982.0154,-1958.7638,16.9635);
        SetPlayerCameraLookAt(playerid, 1981.7389,-1962.9572,16.6941);
        SetPlayerPos(playerid, 1981.7389,-1962.9572,16.6941);
        SetPlayerFacingAngle(playerid, 359.3499);
        SetPlayerVirtualWorld(playerid, playerid+1);
        SetPlayerCameraPos(playerid, 1982.0154,-1958.7638,16.9635);
        SetPlayerCameraLookAt(playerid, 1981.7389,-1962.9572,16.6941);
        AddAccount(GN(playerid), inputtext);
        SendClientMessage(playerid, 0xFFFFFFFF, "[Account]: You're now registered.");
    }

pawn Код:

function AddAccount(name[], password[]) {
    new string[250];
    mysql_real_escape_string(password, SQLEscape[Escape][0]);
    format(string,sizeof(string), "INSERT INTO Accounts (Name, Password, Cash, Skin, Admin, Supporter, Tester) VALUES('%s', md5('%s', 250, 124, 0, 0, 0)",
    name, SQLEscape[Escape][0]);
    mysql_query(string);
}

[Jay_]

Please read https://sampforum.blast.hk/showthread.php?tid=355296