Hi, Hugh--
Thanks for both scripts! They are absolutely what I needed for my relatively
simple case and they now work great.
While I was thrashing around in my search for a conversion script, I found a
number of items that were out there in the realm of Javascript and
postgresql, etc. They were inscrutable to me, but I believe that some of
them were coming to grips with the finer points of roman numeral conversion.
While I cannot be a good judge, it sure seemed to me that this fellow had
covered all bases:
http://www.onlineconversion.com/roman_numerals_advanced.htm
Hope this is of some contribution to the general good.
I am amazed now to think what certain database software that blithely
converts roman-int-roman is actually doing behind the scenes!
--Dave Shugarts
> "Richard Hutchins" <Richard.Hutchins@Getingeusa.com> wrote in message
> 1EA7D3AE70ACD511BE6D006097A78C1E033C8F9A@USROCEXC">news:1EA7D3AE70ACD511BE6D006097A78C1E033C8F9A@USROCEXC...
>> Here's a rundown of what the script is doing based on your input:
>>
>> If you pass in the number 155, here are the calculations:
>> $m = $num / 1000; //$m will be equal to .155
>> $c = ($num % 1000) / 100; //$c will be equal to 1.55
>> $x = ($num % 100) / 10; //$x will be equal to 5.5
>> $i = $num % 10; //$i will be equal to 5
>> [snip]
>
> Yes, that's exactly the problem... I assumed
> integer-only input and casting. Here is a fixed
> (tested) version:
>
>
> <?php
>
> function RomanDigit($dig, $one, $five, $ten) {
> switch($dig) {
> case 0: return "";
> case 1: return "$one";
> case 2: return "$one$one";
> case 3: return "$one$one$one";
> case 4: return "$one$five";
> case 5: return "$five";
> case 6: return "$five$one";
> case 7: return "$five$one$one";
> case 8: return "$five$one$one$one";
> case 9: return "$one$ten";
> }
> }
>
> function IntToRoman($num) {
> $num = (int) $num;
> if (($num < 1) || ($num > 3999))
> return("No corresponding Roman number!");
>
> $m = (int) ($num * 0.001); $num -= $m*1000;
> $c = (int) ($num * 0.01); $num -= $c*100;
> $x = (int) ($num * 0.1); $num -= $x*10;
> $i = (int) ($num);
>
> // echo "m = $m, c = $c, x = $x, i = $i ";
>
> return(
> RomanDigit($m, 'M', '', '')
> . RomanDigit($c, 'C', 'D', 'M')
> . RomanDigit($x, 'X', 'L', 'C')
> . RomanDigit($i, 'I', 'V', 'X')
> );
> }
>
> ?>
>
>
> and my test script:
>
> <?php
>
> include("to_roman.php");
>
> $test = array( 8, 19, 155, 980, 9.8, -3, 3999, 4000, "abc", "", array() );
>
> foreach($test as $num)
> echo "$num => ".IntToRoman($num)."<br/>";
>
> ?>
>
>
> --
> Hugh Bothwell hugh_bothwell@hotmail.com Kingston ON Canada
> v3.1 GCS/E/AT d- s+: a- C+++ L++>+++$ P+ E- W+++$ N++ K? w++ M PS+
> PE++ Y+ PGP+ t-- 5++ !X R+ tv b++++ DI+++ D-(++) G+ e(++) h-- r- y+
>
>
>
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