[Nero_3D]

If you show the dialog inside the loop your result will be unavoidable
Simply replacing SendClientMessage with ShowPlayerDialog wont work...

PHP код:

if(listitem == 0) {
    new
        dia[1024]
    ;
    for(new i = GetPlayerPoolSize(); i >= 0; --i) {
        if(GetPlayerName(i, giveplayer, sizeof giveplayer) && (PlayerInfo[i][pMember] == 1 || PlayerInfo[i][pLeader] == 1)) {
            format(dia, sizeof dia, "%s\n Name: %s | Rank %d | Ph: %d", dia, giveplayer, PlayerInfo[i][pRank], PlayerInfo[i][pPtel]);
        }
    }
    if(dia[0] == EOS) {
        dia = "\n No Members Online!";
    }
    ShowPlayerDialog(playerid, 1, DIALOG_STYLE_MSGBOX, "San Andreas Police Department", dia[1], "Close", "");
}