dcmd_joindate(playerid, params[])
{
    #pragma unused params
    new string[64];
    format(string,sizeof(string),"You registred on the date: %s", DateJoined);
    SendClientMessage(playerid, 0xFFFFFFAA, string);
    return 1;
}

/*

DateJoined == From my MySQL base, when the player register then the date get registred too.
So i cant use something like the admin level.. "PlayerData[AdminLevel];"
So how can i get the date he registred then?

*/