php__phplib/misc/boxed_scalars.php

<?php
/**
 *
 * Boxed scalar values, usable with classes implementing Comparable_Interface.
 *
 * @copyright  (c) 2007 OSI
 * @license    Licensed under the CeCILL 2.0
 */


/**
 * This class enables use of scalar values with classes implementing Comparable_Interface
 * @package default
 */
class boxed_int implements Comparable_Interface {
  protected $value;

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

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

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