[Kingunit]

pawn Код:

new pName[MAX_PLAYER_NAME], string[128];
        GetPlayerName(playerid, pName, sizeof(pName));
        format(string, sizeof(string), "%s says: %s", pName, text);
        SendClientMessage(playerid,0xFFFFFAA,string);

Will work. new text isn't needed. That's already at OnPlayerText.