note 32230 added to function.round

I need a way to display a nice looking number. Everything I try messes it up in some different way. Say I have: $num = 123456789123456789; format_number($num); //123,456,789,123,456,800 is the output and $num = 123456789123456789; ceil(number_format($num)); //123 is the output I need a way that it will read 123,456,789,123,456,789 but if it is a decimal I need it to be shown like: 123,456.789123456789 without extra zeros or anything. This has to work for just about any number except for scientific notation. And the data is inserted without comma's. Replies would be GREATLY appreciated! ---- Manual Page -- http://www.php.net/manual/en/function.round.php Edit Note -- http://master.php.net/manage/user-notes.php?action=edit+32230 Delete Note -- http://master.php.net/manage/user-notes.php?action=delete+32230&report=yes Reject Note -- http://master.php.net/manage/user-notes.php?action=reject+32230&report=yes