general.php

Zen Cart是一款最新的购物车软件

<?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       |
// | [e-mail] so we can mail you a copy immediately.          |
// +----------------------------------------------------------------------+
//  $Id: general.php 3415 2006-04-11 04:51:22Z drbyte $
//

////
// Redirect to another page or site
  function zen_redirect($url) {
    global $logger;

// clean up URL before executing it
    while (strstr($url, '&&')) $url = str_replace('&&', '&', $url);
    while (strstr($url, '&amp;&amp;')) $url = str_replace('&amp;&amp;', '&amp;', $url);
    // header locates should not have the &amp; in the address it breaks things
    while (strstr($url, '&amp;')) $url = str_replace('&amp;', '&', $url);

    header('Location: ' . $url);

    if (STORE_PAGE_PARSE_TIME == 'true') {
      if (!is_object($logger)) $logger = new logger;
      $logger->timer_stop();
    }

    exit;
  }

////
// Parse the data used in the html tags to ensure the tags will not break
  function zen_parse_input_field_data($data, $parse) {
    return strtr(trim($data), $parse);
  }


  function zen_output_string($string, $translate = false, $protected = false) {
    if ($protected == true) {
      return htmlspecialchars($string);
    } else {
      if ($translate == false) {
        return zen_parse_input_field_data($string, array('"' => '&quot;'));
      } else {
        return zen_parse_input_field_data($string, $translate);
      }
    }
  }


  function zen_output_string_protected($string) {
    return zen_output_string($string, false, true);
  }


  function zen_sanitize_string($string) {
    $string = ereg_replace(' +', ' ', $string);

    return preg_replace("/[<>]/", '_', $string);
  }


  function zen_customers_name($customers_id) {
    global $db;
    $customers_values = $db->Execute("select customers_firstname, customers_lastname
                               from " . TABLE_CUSTOMERS . "
                               where customers_id = '" . (int)$customers_id . "'");

    return $customers_values->fields['customers_firstname'] . ' ' . $customers_values->fields['customers_lastname'];
  }


  function zen_get_path($current_category_id = '') {
    global $cPath_array, $db;
// set to 0 if Top Level
    if ($current_category_id == '') {
      if (empty($cPath_array)) {
        $cPath_new= '';
      } else {
        $cPath_new = implode('_', $cPath_array);
      }
    } else {
      if (sizeof($cPath_array) == 0) {
        $cPath_new = $current_category_id;
      } else {
        $cPath_new = '';
        $last_category = $db->Execute("select parent_id
                                       from " . TABLE_CATEGORIES . "
                                       where categories_id = '" . (int)$cPath_array[(sizeof($cPath_array)-1)] . "'");

        $current_category = $db->Execute("select parent_id
                                          from " . TABLE_CATEGORIES . "
                                           where categories_id = '" . (int)$current_category_id . "'");

        if ($last_category->fields['parent_id'] == $current_category->fields['parent_id']) {
          for ($i = 0, $n = sizeof($cPath_array) - 1; $i < $n; $i++) {
            $cPath_new .= '_' . $cPath_array[$i];
          }
        } else {
          for ($i = 0, $n = sizeof($cPath_array); $i < $n; $i++) {
            $cPath_new .= '_' . $cPath_array[$i];
          }
        }

        $cPath_new .= '_' . $current_category_id;

        if (substr($cPath_new, 0, 1) == '_') {
          $cPath_new = substr($cPath_new, 1);
        }
      }
    }

    return 'cPath=' . $cPath_new;
  }


  function zen_get_all_get_params($exclude_array = '') {
    global $_GET;

    if ($exclude_array == '') $exclude_array = array();

    $get_url = '';

    reset($_GET);
    while (list($key, $value) = each($_GET)) {
      if (($key != zen_session_name()) && ($key != 'error') && (!in_array($key, $exclude_array))) $get_url .= $key . '=' . $value . '&';
    }

    return $get_url;
  }


  function zen_date_long($raw_date) {
    if ( ($raw_date == '0001-01-01 00:00:00') || ($raw_date == '') ) return false;

    $year = (int)substr($raw_date, 0, 4);
    $month = (int)substr($raw_date, 5, 2);
    $day = (int)substr($raw_date, 8, 2);
    $hour = (int)substr($raw_date, 11, 2);
    $minute = (int)substr($raw_date, 14, 2);
    $second = (int)substr($raw_date, 17, 2);

    return strftime(DATE_FORMAT_LONG, mktime($hour, $minute, $second, $month, $day, $year));
  }


////
// Output a raw date string in the selected locale date format
// $raw_date needs to be in this format: YYYY-MM-DD HH:MM:SS
// NOTE: Includes a workaround for dates before 01/01/1970 that fail on windows servers
  function zen_date_short($raw_date) {
    if ( ($raw_date == '0001-01-01 00:00:00') || ($raw_date == '') ) return false;

    $year = substr($raw_date, 0, 4);
    $month = (int)substr($raw_date, 5, 2);
    $day = (int)substr($raw_date, 8, 2);
    $hour = (int)substr($raw_date, 11, 2);
    $minute = (int)substr($raw_date, 14, 2);
    $second = (int)substr($raw_date, 17, 2);

// error on 1969 only allows for leap year
    if ($year != 1969 && @date('Y', mktime($hour, $minute, $second, $month, $day, $year)) == $year) {
      return date(DATE_FORMAT, mktime($hour, $minute, $second, $month, $day, $year));
    } else {
      return ereg_replace('2037' . '$', $year, date(DATE_FORMAT, mktime($hour, $minute, $second, $month, $day, 2037)));
    }

  }


  function zen_datetime_short($raw_datetime) {
    if ( ($raw_datetime == '0001-01-01 00:00:00') || ($raw_datetime == '') ) return false;

    $year = (int)substr($raw_datetime, 0, 4);
    $month = (int)substr($raw_datetime, 5, 2);
    $day = (int)substr($raw_datetime, 8, 2);
    $hour = (int)substr($raw_datetime, 11, 2);
    $minute = (int)substr($raw_datetime, 14, 2);
    $second = (int)substr($raw_datetime, 17, 2);

    return strftime(DATE_TIME_FORMAT, mktime($hour, $minute, $second, $month, $day, $year));
  }


  function zen_get_category_tree($parent_id = '0', $spacing = '', $exclude = '', $category_tree_array = '', $include_itself = false, $category_has_products = false, $limit = false) {
    global $db;

    if ($limit) {
      $limit_count = " limit 1";
    } else {
      $limit_count = '';
    }

    if (!is_array($category_tree_array)) $category_tree_array = array();
    if ( (sizeof($category_tree_array) < 1) && ($exclude != '0') ) $category_tree_array[] = array('id' => '0', 'text' => TEXT_TOP);

    if ($include_itself) {
      $category = $db->Execute("select cd.categories_name
                                from " . TABLE_CATEGORIES_DESCRIPTION . " cd
                                where cd.language_id = '" . (int)$_SESSION['languages_id'] . "'
                                and cd.categories_id = '" . (int)$parent_id . "'");

      $category_tree_array[] = array('id' => $parent_id, 'text' => $category->fields['categories_name']);
    }

    $categories = $db->Execute("select c.categories_id, cd.categories_name, c.parent_id
                                from " . TABLE_CATEGORIES . " c, " . TABLE_CATEGORIES_DESCRIPTION . " cd
                                where c.categories_id = cd.categories_id
                                and cd.language_id = '" . (int)$_SESSION['languages_id'] . "'
                                and c.parent_id = '" . (int)$parent_id . "'
                                order by c.sort_order, cd.categories_name");

    while (!$categories->EOF) {
      if ($category_has_products == true and zen_products_in_category_count($categories->fields['categories_id'], '', false, true) >= 1) {
        $mark = '*';
      } else {
        $mark = '&nbsp;&nbsp;';
      }
      if ($exclude != $categories->fields['categories_id']) $category_tree_array[] = array('id' => $categories->fields['categories_id'], 'text' => $spacing . $categories->fields['categories_name'] . $mark);
      $category_tree_array = zen_get_category_tree($categories->fields['categories_id'], $spacing . '&nbsp;&nbsp;&nbsp;', $exclude, $category_tree_array, '', $category_has_products);
      $categories->MoveNext();
    }

    return $category_tree_array;
  }


////
// products with name, model and price pulldown
  function zen_draw_products_pull_down($name, $parameters = '', $exclude = '', $show_id = false, $set_selected = false, $show_model = false, $show_current_category = false) {
    global $currencies, $db, $current_category_id;

    if ($exclude == '') {
      $exclude = array();
    }

    $select_string = '<select name="' . $name . '"';

    if ($parameters) {
      $select_string .= ' ' . $parameters;
    }

    $select_string .= '>';

    if ($show_current_category) {
// only show $current_categories_id
      $products = $db->Execute("select p.products_id, pd.products_name, p.products_price, p.products_model, ptc.categories_id
                                from " . TABLE_PRODUCTS . " p
                                left join " . TABLE_PRODUCTS_TO_CATEGORIES . " ptc on ptc.products_id = p.products_id, " .
                                TABLE_PRODUCTS_DESCRIPTION . " pd
                                where p.products_id = pd.products_id
                                and pd.language_id = '" . (int)$_SESSION['languages_id'] . "'
                                and ptc.categories_id = '" . $current_category_id . "'
                                order by products_name");
    } else {
      $products = $db->Execute("select p.products_id, pd.products_name, p.products_price, p.products_model
                                from " . TABLE_PRODUCTS . " p, " . TABLE_PRODUCTS_DESCRIPTION . " pd
                                where p.products_id = pd.products_id
                                and pd.language_id = '" . (int)$_SESSION['languages_id'] . "'
                                order by products_name");
    }

    while (!$products->EOF) {
      if (!in_array($products->fields['products_id'], $exclude)) {
        $display_price = zen_get_products_base_price($products->fields['products_id']);
        $select_string .= '<option value="' . $products->fields['products_id'] . '"';
        if ($set_selected == $products->fields['products_id']) $select_string .= ' SELECTED';
        $select_string .= '>' . $products->fields['products_name'] . ' (' . $currencies->format($display_price) . ')' . ($show_model ? ' [' . $products->fields['products_model'] . '] ' : '') . ($show_id ? ' - ID# ' . $products->fields['products_id'] : '') . '</option>';
      }
      $products->MoveNext();
    }

    $select_string .= '</select>';

    return $select_string;
  }


  function zen_options_name($options_id) {
    global $db;

    $options_id = str_replace('txt_','',$options_id);

    $options_values = $db->Execute("select products_options_name
                                    from " . TABLE_PRODUCTS_OPTIONS . "
                                    where products_options_id = '" . (int)$options_id . "'
                                    and language_id = '" . (int)$_SESSION['languages_id'] . "'");

    return $options_values->fields['products_options_name'];
  }


  function zen_values_name($values_id) {
    global $db;

    $values_values = $db->Execute("select products_options_values_name
                                   from " . TABLE_PRODUCTS_OPTIONS_VALUES . "
                                   where products_options_values_id = '" . (int)$values_id . "'
                                   and language_id = '" . (int)$_SESSION['languages_id'] . "'");

    return $values_values->fields['products_options_values_name'];
  }


  function zen_info_image($image, $alt, $width = '', $height = '') {
    if (zen_not_null($image) && (file_exists(DIR_FS_CATALOG_IMAGES . $image)) ) {
      $image = zen_image(DIR_WS_CATALOG_IMAGES . $image, $alt, $width, $height);
    } else {
      $image = TEXT_IMAGE_NONEXISTENT;
    }

    return $image;
  }


  function zen_break_string($string, $len, $break_char = '-') {
    $l = 0;
    $output = '';
    for ($i=0, $n=strlen($string); $i<$n; $i++) {
      $char = substr($string, $i, 1);
      if ($char != ' ') {
        $l++;
      } else {
        $l = 0;
      }
      if ($l > $len) {
        $l = 1;
        $output .= $break_char;
      }
      $output .= $char;
    }

    return $output;
  }