RE: [PHP-DB] Re: Now, how about Roman Numerals?

Now that's sweet, Hugh. Just looked at it in the browser. Nice conversion. You should publish this as a class so it's available from this point forward. Rich > -----Original Message----- > From: Hugh Bothwell [mailto:hugh_bothwell@hotmail.com] > Sent: Wednesday, June 11, 2003 11:19 AM > To: php-db@lists.php.net > Subject: Re: [PHP-DB] Re: Now, how about Roman Numerals? > > > "Richard Hutchins" <Richard.Hutchins@Getingeusa.com> wrote in message > 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 =&gt; ".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+ > > > > > -- > PHP Database Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php >