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Posted By

Scooter on 05/19/08


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Ordinal Numbers

Published in: PHP 

URL: http://reusablecode.blogspot.com/2008/04/ordinal-numbers.html

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  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.     // Returns the ordinal of a cardinal number.
  12.     function ordinal($cardinal)
  13.     {
  14.         if (substr($cardinal, -1, 1) == 1 && substr($cardinal, -2, 2) != 11)
  15.         {
  16.             return ($cardinal . 'st');
  17.         }
  18.         elseif (substr($cardinal, -1, 1) == 2 && substr($cardinal, -2, 2) != 12)
  19.         {
  20.             return ($cardinal . 'nd');
  21.         }
  22.         elseif (substr($cardinal, -1, 1) == 3 && substr($cardinal, -2, 2) != 13)
  23.         {
  24.             return ($cardinal . 'rd');
  25.         }
  26.         else
  27.         {
  28.             return ($cardinal . 'th');
  29.         }
  30.     }
  31.  
  32.     // Unit test.
  33.     //for($i = 0; $i < 25; $i++)
  34.     //{
  35.     //    echo "<p>" . ordinal($i) . "</p>";
  36.     //}
  37. ?>

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