php__phplib/boxed_scalars.php

<?php
/**
 * This class enables use of scalar values with classes implementing iComparable
 * $Id: boxed_scalars.php,v 1.1 2006-12-03 23:20:08 marand Exp $
 */

require_once('misc.php'); // for iComparable

class boxed_int implements iComparable
  {
  protected $value;

  function __construct($n)
    {
    $this->value = $n;
    }

  function cmp(iComparable $other)
    {
    if ($this->value < $other->value)
      return -1;
    elseif ($this->value > $other->value)
      return 1;
    else
      return 0;
    }

  function as_int()
    {
    return $this->value;
    }
  }