general.php

osCommerce最好的电子商务程序 2.2

    }

    $date_array = array($year, $month, $day);

    return true;
  }

////
// Check if year is a leap year
  function tep_is_leap_year($year) {
    if ($year % 100 == 0) {
      if ($year % 400 == 0) return true;
    } else {
      if (($year % 4) == 0) return true;
    }

    return false;
  }

////
// Return table heading with sorting capabilities
  function tep_create_sort_heading($sortby, $colnum, $heading) {
    global $PHP_SELF;

    $sort_prefix = '';
    $sort_suffix = '';

    if ($sortby) {
      $sort_prefix = '<a href="' . tep_href_link(basename($PHP_SELF), tep_get_all_get_params(array('page', 'info', 'sort')) . 'page=1&sort=' . $colnum . ($sortby == $colnum . 'a' ? 'd' : 'a')) . '" title="' . tep_output_string(TEXT_SORT_PRODUCTS . ($sortby == $colnum . 'd' || substr($sortby, 0, 1) != $colnum ? TEXT_ASCENDINGLY : TEXT_DESCENDINGLY) . TEXT_BY . $heading) . '" class="productListing-heading">' ;
      $sort_suffix = (substr($sortby, 0, 1) == $colnum ? (substr($sortby, 1, 1) == 'a' ? '+' : '-') : '') . '</a>';
    }

    return $sort_prefix . $heading . $sort_suffix;
  }

////
// Recursively go through the categories and retreive all parent categories IDs
// TABLES: categories
  function tep_get_parent_categories(&$categories, $categories_id) {
    $parent_categories_query = tep_db_query("select parent_id from " . TABLE_CATEGORIES . " where categories_id = '" . (int)$categories_id . "'");
    while ($parent_categories = tep_db_fetch_array($parent_categories_query)) {
      if ($parent_categories['parent_id'] == 0) return true;
      $categories[sizeof($categories)] = $parent_categories['parent_id'];
      if ($parent_categories['parent_id'] != $categories_id) {
        tep_get_parent_categories($categories, $parent_categories['parent_id']);
      }
    }
  }

////
// Construct a category path to the product
// TABLES: products_to_categories
  function tep_get_product_path($products_id) {
    $cPath = '';

    $category_query = tep_db_query("select p2c.categories_id from " . TABLE_PRODUCTS . " p, " . TABLE_PRODUCTS_TO_CATEGORIES . " p2c where p.products_id = '" . (int)$products_id . "' and p.products_status = '1' and p.products_id = p2c.products_id limit 1");
    if (tep_db_num_rows($category_query)) {
      $category = tep_db_fetch_array($category_query);

      $categories = array();
      tep_get_parent_categories($categories, $category['categories_id']);

      $categories = array_reverse($categories);

      $cPath = implode('_', $categories);

      if (tep_not_null($cPath)) $cPath .= '_';
      $cPath .= $category['categories_id'];
    }

    return $cPath;
  }

////
// Return a product ID with attributes
  function tep_get_uprid($prid, $params) {
    $uprid = $prid;
    if ( (is_array($params)) && (!strstr($prid, '{')) ) {
      while (list($option, $value) = each($params)) {
        $uprid = $uprid . '{' . $option . '}' . $value;
      }
    }

    return $uprid;
  }

////
// Return a product ID from a product ID with attributes
  function tep_get_prid($uprid) {
    $pieces = explode('{', $uprid);

    return $pieces[0];
  }

////
// Return a customer greeting
  function tep_customer_greeting() {
    global $customer_id, $customer_first_name;

    if (tep_session_is_registered('customer_first_name') && tep_session_is_registered('customer_id')) {
      $greeting_string = sprintf(TEXT_GREETING_PERSONAL, tep_output_string_protected($customer_first_name), tep_href_link(FILENAME_PRODUCTS_NEW));
    } else {
      $greeting_string = sprintf(TEXT_GREETING_GUEST, tep_href_link(FILENAME_LOGIN, '', 'SSL'), tep_href_link(FILENAME_CREATE_ACCOUNT, '', 'SSL'));
    }

    return $greeting_string;
  }

////
//! Send email (text/html) using MIME
// This is the central mail function. The SMTP Server should be configured
// correct in php.ini
// Parameters:
// $to_name           The name of the recipient, e.g. "Jan Wildeboer"
// $to_email_address  The eMail address of the recipient,
//                    e.g. [e-mail]
// $email_subject     The subject of the eMail
// $email_text        The text of the eMail, may contain HTML entities
// $from_email_name   The name of the sender, e.g. Shop Administration
// $from_email_adress The eMail address of the sender,
//                    e.g. [e-mail]

  function tep_mail($to_name, $to_email_address, $email_subject, $email_text, $from_email_name, $from_email_address) {
    if (SEND_EMAILS != 'true') return false;

    // Instantiate a new mail object
    $message = new email(array('X-Mailer: osCommerce Mailer'));

    // Build the text version
    $text = strip_tags($email_text);
    if (EMAIL_USE_HTML == 'true') {
      $message->add_html($email_text, $text);
    } else {
      $message->add_text($text);
    }

    // Send message
    $message->build_message();
    $message->send($to_name, $to_email_address, $from_email_name, $from_email_address, $email_subject);
  }

////
// Check if product has attributes
  function tep_has_product_attributes($products_id) {
    $attributes_query = tep_db_query("select count(*) as count from " . TABLE_PRODUCTS_ATTRIBUTES . " where products_id = '" . (int)$products_id . "'");
    $attributes = tep_db_fetch_array($attributes_query);

    if ($attributes['count'] > 0) {
      return true;
    } else {
      return false;
    }
  }

////
// Get the number of times a word/character is present in a string
  function tep_word_count($string, $needle) {
    $temp_array = split($needle, $string);

    return sizeof($temp_array);
  }

  function tep_count_modules($modules = '') {
    $count = 0;

    if (empty($modules)) return $count;

    $modules_array = split(';', $modules);

    for ($i=0, $n=sizeof($modules_array); $i<$n; $i++) {
      $class = substr($modules_array[$i], 0, strrpos($modules_array[$i], '.'));

      if (is_object($GLOBALS[$class])) {
        if ($GLOBALS[$class]->enabled) {
          $count++;
        }
      }
    }

    return $count;
  }

  function tep_count_payment_modules() {
    return tep_count_modules(MODULE_PAYMENT_INSTALLED);
  }

  function tep_count_shipping_modules() {
    return tep_count_modules(MODULE_SHIPPING_INSTALLED);
  }

  function tep_create_random_value($length, $type = 'mixed') {
    if ( ($type != 'mixed') && ($type != 'chars') && ($type != 'digits')) return false;

    $rand_value = '';
    while (strlen($rand_value) < $length) {
      if ($type == 'digits') {
        $char = tep_rand(0,9);
      } else {
        $char = chr(tep_rand(0,255));
      }
      if ($type == 'mixed') {
        if (eregi('^[a-z0-9]$', $char)) $rand_value .= $char;
      } elseif ($type == 'chars') {
        if (eregi('^[a-z]$', $char)) $rand_value .= $char;
      } elseif ($type == 'digits') {
        if (ereg('^[0-9]$', $char)) $rand_value .= $char;
      }
    }

    return $rand_value;
  }

  function tep_array_to_string($array, $exclude = '', $equals = '=', $separator = '&') {
    if (!is_array($exclude)) $exclude = array();

    $get_string = '';
    if (sizeof($array) > 0) {
      while (list($key, $value) = each($array)) {
        if ( (!in_array($key, $exclude)) && ($key != 'x') && ($key != 'y') ) {
          $get_string .= $key . $equals . $value . $separator;
        }
      }
      $remove_chars = strlen($separator);
      $get_string = substr($get_string, 0, -$remove_chars);
    }

    return $get_string;
  }

  function tep_not_null($value) {
    if (is_array($value)) {
      if (sizeof($value) > 0) {
        return true;
      } else {
        return false;
      }
    } else {
      if (($value != '') && (strtolower($value) != 'null') && (strlen(trim($value)) > 0)) {
        return true;
      } else {
        return false;
      }
    }
  }

////
// Output the tax percentage with optional padded decimals
  function tep_display_tax_value($value, $padding = TAX_DECIMAL_PLACES) {
    if (strpos($value, '.')) {
      $loop = true;
      while ($loop) {
        if (substr($value, -1) == '0') {
          $value = substr($value, 0, -1);
        } else {
          $loop = false;
          if (substr($value, -1) == '.') {
            $value = substr($value, 0, -1);
          }
        }
      }
    }

    if ($padding > 0) {
      if ($decimal_pos = strpos($value, '.')) {
        $decimals = strlen(substr($value, ($decimal_pos+1)));
        for ($i=$decimals; $i<$padding; $i++) {
          $value .= '0';
        }
      } else {
        $value .= '.';
        for ($i=0; $i<$padding; $i++) {
          $value .= '0';
        }
      }
    }

    return $value;
  }

////
// Checks to see if the currency code exists as a currency
// TABLES: currencies
  function tep_currency_exists($code) {
    $code = tep_db_prepare_input($code);

    $currency_code = tep_db_query("select currencies_id from " . TABLE_CURRENCIES . " where code = '" . tep_db_input($code) . "'");
    if (tep_db_num_rows($currency_code)) {
      return $code;
    } else {
      return false;
    }
  }

  function tep_string_to_int($string) {
    return (int)$string;
  }

////
// Parse and secure the cPath parameter values
  function tep_parse_category_path($cPath) {
// make sure the category IDs are integers
    $cPath_array = array_map('tep_string_to_int', explode('_', $cPath));

// make sure no duplicate category IDs exist which could lock the server in a loop
    $tmp_array = array();
    $n = sizeof($cPath_array);
    for ($i=0; $i<$n; $i++) {
      if (!in_array($cPath_array[$i], $tmp_array)) {
        $tmp_array[] = $cPath_array[$i];
      }
    }

    return $tmp_array;
  }

////
// Return a random value
  function tep_rand($min = null, $max = null) {
    static $seeded;

    if (!isset($seeded)) {
      mt_srand((double)microtime()*1000000);
      $seeded = true;
    }

    if (isset($min) && isset($max)) {
      if ($min >= $max) {
        return $min;
      } else {
        return mt_rand($min, $max);
      }
    } else {
      return mt_rand();
    }
  }

  function tep_setcookie($name, $value = '', $expire = 0, $path = '/', $domain = '', $secure = 0) {
    setcookie($name, $value, $expire, $path, (tep_not_null($domain) ? $domain : ''), $secure);
  }

  function tep_get_ip_address() {
    if (isset($_SERVER)) {
      if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) {
        $ip = $_SERVER['HTTP_X_FORWARDED_FOR'];
      } elseif (isset($_SERVER['HTTP_CLIENT_IP'])) {
        $ip = $_SERVER['HTTP_CLIENT_IP'];
      } else {
        $ip = $_SERVER['REMOTE_ADDR'];
      }
    } else {
      if (getenv('HTTP_X_FORWARDED_FOR')) {
        $ip = getenv('HTTP_X_FORWARDED_FOR');
      } elseif (getenv('HTTP_CLIENT_IP')) {
        $ip = getenv('HTTP_CLIENT_IP');
      } else {
        $ip = getenv('REMOTE_ADDR');
      }
    }

    return $ip;
  }

  function tep_count_customer_orders($id = '', $check_session = true) {
    global $customer_id;

    if (is_numeric($id) == false) {
      if (tep_session_is_registered('customer_id')) {
        $id = $customer_id;
      } else {
        return 0;
      }
    }

    if ($check_session == true) {
      if ( (tep_session_is_registered('customer_id') == false) || ($id != $customer_id) ) {
        return 0;
      }
    }

    $orders_check_query = tep_db_query("select count(*) as total from " . TABLE_ORDERS . " where customers_id = '" . (int)$id . "'");
    $orders_check = tep_db_fetch_array($orders_check_query);

    return $orders_check['total'];
  }

  function tep_count_customer_address_book_entries($id = '', $check_session = true) {
    global $customer_id;

    if (is_numeric($id) == false) {
      if (tep_session_is_registered('customer_id')) {
        $id = $customer_id;
      } else {
        return 0;
      }
    }

    if ($check_session == true) {
      if ( (tep_session_is_registered('customer_id') == false) || ($id != $customer_id) ) {
        return 0;
      }
    }

    $addresses_query = tep_db_query("select count(*) as total from " . TABLE_ADDRESS_BOOK . " where customers_id = '" . (int)$id . "'");
    $addresses = tep_db_fetch_array($addresses_query);

    return $addresses['total'];
  }

// nl2br() prior PHP 4.2.0 did not convert linefeeds on all OSs (it only converted \n)
  function tep_convert_linefeeds($from, $to, $string) {
    if ((PHP_VERSION < "4.0.5") && is_array($from)) {
      return ereg_replace('(' . implode('|', $from) . ')', $to, $string);
    } else {
      return str_replace($from, $to, $string);
    }
  }
?>