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Posted By

Scooter on 08/30/08


Tagged

roman numerals


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wizard04


BigRoman

Published in: PHP 

URL: http://reusablecode.blogspot.com/2008/08/roman-numerals-part-3.html

Handles arabic numbers larger than 4999. Requires my roman() function.

Plain TextExpand 
  1. <?php
  2.     /*
  3.     Copyright (c) 2008, reusablecode.blogspot.com; some rights reserved.
  4.     
  5.     This work is licensed under the Creative Commons Attribution License. To view
  6.     a copy of this license, visit http://creativecommons.org/licenses/by/3.0/ or
  7.     send a letter to Creative Commons, 559 Nathan Abbott Way, Stanford, California
  8.     94305, USA.
  9.     */
  10.  
  11.     // Convert Arabic numerals into Roman numerals.
  12.     // REQUIRES: roman()
  13.     function bigroman($arabic)
  14.     {
  15.         $thousands = Array("", "M", "MM", "MMM", "M(V)", "(V)", "(V)M", "(V)MM", "(V)MMM", "M(X)");
  16.  
  17.         if ($arabic >= 10000)
  18.         {
  19.             $bigroman = "(" . roman(($arabic - fmod($arabic, 10000)) / 1000) . ")";
  20.             $arabic = fmod($arabic, 10000);
  21.         }
  22.  
  23.         $bigroman .= $thousands[($arabic - fmod($arabic, 1000)) / 1000];
  24.         $arabic = fmod($arabic, 1000);
  25.         $bigroman .= roman($arabic);
  26.  
  27.         // Convert parentheses to <span> tags.
  28.         $bigroman = str_replace("(", "<span style=""text-decoration: overline"">", $bigroman);
  29.         $bigroman = str_replace(")", "</span>", $bigroman);
  30.  
  31.         return $bigroman;
  32.     }
  33. ?>

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