<?php

// +----------------------------------------------------------------------+

// | PHP Version 4                                                        |

// +----------------------------------------------------------------------+

// | Copyright (c) 1997-2004 The PHP Group                                |

// +----------------------------------------------------------------------+

// | This source file is subject to version 3.0 of the PHP license,       |

// | that is bundled with this package in the file LICENSE, and is        |

// | available at through the world-wide-web at                           |

// | http://www.php.net/license/3_0.txt.                                  |

// | If you did not receive a copy of the PHP license and are unable to   |

// | obtain it through the world-wide-web, please send a note to          |

// | license@php.net so we can mail you a copy immediately.               |

// +----------------------------------------------------------------------+

// | Authors: Stephan Schmidt <schst@php.net>                             |

// |          Aidan Lister <aidan@php.net>                                |

// +----------------------------------------------------------------------+

//

// $Id: array_change_key_case.php,v 1.11 2005/12/07 21:08:57 aidan Exp $





if (!defined('CASE_LOWER')) {

    define('CASE_LOWER', 0);

}



if (!defined('CASE_UPPER')) {

    define('CASE_UPPER', 1);

}





/**

 * Replace array_change_key_case()

 *

 * @category    PHP

 * @package     PHP_Compat

 * @link        http://php.net/function.array_change_key_case

 * @author      Stephan Schmidt <schst@php.net>

 * @author      Aidan Lister <aidan@php.net>

 * @version     $Revision: 1.11 $

 * @since       PHP 4.2.0

 * @require     PHP 4.0.0 (user_error)

 */

if (!function_exists('array_change_key_case')) {

    function array_change_key_case($input, $case = CASE_LOWER)

    {

        if (!is_array($input)) {

            user_error('array_change_key_case(): The argument should be an array',

                E_USER_WARNING);

            return false;

        }



        $output   = array ();

        $keys     = array_keys($input);

        $casefunc = ($case == CASE_LOWER) ? 'strtolower' : 'strtoupper';



        foreach ($keys as $key) {

            $output[$casefunc($key)] = $input[$key];

        }



        return $output;

    }

}



?>