<?php
//
// +----------------------------------------------------------------------+
// |zen-cart Open Source E-commerce                                       |
// +----------------------------------------------------------------------+
// | Copyright (c) 2003 The zen-cart developers                           |
// |                                                                      |
// | http://www.zen-cart.com/index.php                                    |
// |                                                                      |
// | Portions Copyright (c) 2003 osCommerce                               |
// +----------------------------------------------------------------------+
// | This source file is subject to version 2.0 of the GPL license,       |
// | that is bundled with this package in the file LICENSE, and is        |
// | available through the world-wide-web at the following url:           |
// | http://www.zen-cart.com/license/2_0.txt.                             |
// | If you did not receive a copy of the zen-cart license and are unable |
// | to obtain it through the world-wide-web, please send a note to       |
// | license@zen-cart.com so we can mail you a copy immediately.          |
// +----------------------------------------------------------------------+
//  $Id: compatibility.php,v 1.1.1.1 2004/09/01 04:47:15 shidairiki Exp $
//

////
// Recursively handle magic_quotes_gpc turned off.
// This is due to the possibility of have an array in
// $HTTP_xxx_VARS
// Ie, products attributes
  function do_magic_quotes_gpc(&$ar) {
    if (!is_array($ar)) return false;

    while (list($key, $value) = each($ar)) {
      if (is_array($value)) {
        do_magic_quotes_gpc($value);
      } else {
        $ar[$key] = addslashes($value);
      }
    }
  }

// $HTTP_xxx_VARS are always set on php4
  if (!is_array($_GET)) $_GET = array();
  if (!is_array($_POST)) $_POST = array();
  if (!is_array($_COOKIE)) $_COOKIE = array();

// handle magic_quotes_gpc turned off.
  if (!get_magic_quotes_gpc()) {
    do_magic_quotes_gpc($_GET);
    do_magic_quotes_gpc($_POST);
    do_magic_quotes_gpc($_COOKIE);
  }

  if (!function_exists('is_numeric')) {
    function is_numeric($param) {
      return ereg("^[0-9]{1,50}.?[0-9]{0,50}$", $param);
    }
  }

  if (!function_exists('is_uploaded_file')) {
    function is_uploaded_file($filename) {
      if (!$tmp_file = get_cfg_var('upload_tmp_dir')) {
        $tmp_file = dirname(tempnam('', ''));
      }

      if (strchr($tmp_file, '/')) {
        if (substr($tmp_file, -1) != '/') $tmp_file .= '/';
      } elseif (strchr($tmp_file, '\\')) {
        if (substr($tmp_file, -1) != '\\') $tmp_file .= '\\';
      }

      return file_exists($tmp_file . basename($filename));
    }
  }

  if (!function_exists('move_uploaded_file')) {
    function move_uploaded_file($file, $target) {
      return copy($file, $target);
    }
  }

  if (!function_exists('checkdnsrr')) {
    function checkdnsrr($host, $type) {
      if(zen_not_null($host) && zen_not_null($type)) {
        @exec("nslookup -type=$type $host", $output);
        while(list($k, $line) = each($output)) {
          if(eregi("^$host", $line)) {
            return true;
          }
        }
      }
      return false;
    }
  }

  if (!function_exists('in_array')) {
    function in_array($lookup_value, $lookup_array) {
      reset($lookup_array);
      while (list($key, $value) = each($lookup_array)) {
        if ($value == $lookup_value) return true;
      }

      return false;
    }
  }

  if (!function_exists('array_merge')) {
    function array_merge($array1, $array2, $array3 = '') {
      if ($array3 == '') $array3 = array();

      while (list($key, $val) = each($array1)) $array_merged[$key] = $val;
      while (list($key, $val) = each($array2)) $array_merged[$key] = $val;

      if (sizeof($array3) > 0) while (list($key, $val) = each($array3)) $array_merged[$key] = $val;

      return (array)$array_merged;
    }
  }

  if (!function_exists('array_shift')) {
    function array_shift(&$array) {
      $i = 0;
      $shifted_array = array();
      reset($array);
      while (list($key, $value) = each($array)) {
        if ($i > 0) {
          $shifted_array[$key] = $value;
        } else {
          $return = $array[$key];
        }
        $i++;
      }
      $array = $shifted_array;

      return $return;
    }
  }

  if (!function_exists('array_reverse')) {
    function array_reverse($array) {
      $reversed_array = array();

      for ($i=sizeof($array)-1; $i>=0; $i--) {
        $reversed_array[] = $array[$i];
      }

      return $reversed_array;
    }
  }

  if (!function_exists('array_slice')) {
    function array_slice($array, $offset, $length = '0') {
      $length = abs($length);

      if ($length == 0) {
        $high = sizeof($array);
      } else {
        $high = $offset+$length;
      }

      for ($i=$offset; $i<$high; $i++) {
        $new_array[$i-$offset] = $array[$i];
      }

      return $new_array;
    }
  }

  if (!function_exists('fmod')) {
    function fmod($zf_x, $zf_y) {
      $zp_i = floor($zf_x/$zf_y);
      return $zf_x - $zp_i/$zf_y;
    }
  }
?>