functions_general.php

来自「Zen Cart是真正的电子商务艺术」· PHP 代码 · 共 1,529 行 · 第 1/4 页

    case ($button_check->fields['products_quantity'] <= 0 and SHOW_PRODUCTS_SOLD_OUT_IMAGE == '1'):
      if ($_GET['main_page'] == zen_get_info_page($product_id)) {
        $return_button = zen_image_button(BUTTON_IMAGE_SOLD_OUT, BUTTON_SOLD_OUT_ALT);
      } else {
        $return_button = zen_image_button(BUTTON_IMAGE_SOLD_OUT_SMALL, BUTTON_SOLD_OUT_SMALL_ALT);
      }
      break;
    default:
      $return_button = $link;
      break;
    }
    if ($return_button != $link and $additional_link != false) {
      return $additional_link . '<br />' . $return_button;
    } else {
      return $return_button;
    }
  }


////
// enable shipping
  function zen_get_shipping_enabled($shipping_module) {
    global $PHP_SELF, $cart, $order;

    // for admin always true if installed
    if (strstr($PHP_SELF, FILENAME_MODULES)) {
      return true;
    }

    $check_cart_free = $_SESSION['cart']->in_cart_check('product_is_always_free_shipping','1');
    $check_cart_cnt = $_SESSION['cart']->count_contents();
    $check_cart_weight = $_SESSION['cart']->show_weight();

    switch(true) {
      // for admin always true if installed
      case (strstr($PHP_SELF, FILENAME_MODULES)):
        return true;
        break;
      // Free Shipping when 0 weight - enable freeshipper - ORDER_WEIGHT_ZERO_STATUS must be on
      case (ORDER_WEIGHT_ZERO_STATUS == '1' and ($check_cart_weight == 0 and $shipping_module == 'freeshipper')):
        return true;
        break;
      // Free Shipping when 0 weight - disable everyone - ORDER_WEIGHT_ZERO_STATUS must be on
      case (ORDER_WEIGHT_ZERO_STATUS == '1' and ($check_cart_weight == 0 and $shipping_module != 'freeshipper')):
        return false;
        break;
      case (($_SESSION['cart']->free_shipping_items() == $check_cart_cnt) and $shipping_module == 'freeshipper'):
        return true;
        break;
      case (($_SESSION['cart']->free_shipping_items() == $check_cart_cnt) and $shipping_module != 'freeshipper'):
        return false;
        break;
      // Always free shipping only true - enable freeshipper
      case (($check_cart_free == $check_cart_cnt) and $shipping_module == 'freeshipper'):
        return true;
        break;
      // Always free shipping only true - disable everyone
      case (($check_cart_free == $check_cart_cnt) and $shipping_module != 'freeshipper'):
        return false;
        break;
      // Always free shipping only is false - disable freeshipper
      case (($check_cart_free != $check_cart_cnt) and $shipping_module == 'freeshipper'):
        return false;
        break;
      default:
        return true;
        break;
    }
  }


////
  function zen_html_entity_decode($given_html, $quote_style = ENT_QUOTES) {
    $trans_table = array_flip(get_html_translation_table( HTML_SPECIALCHARS, $quote_style ));
    $trans_table['&#39;'] = "'";
    return ( strtr( $given_html, $trans_table ) );
  }

////
//CLR 030228 Add function zen_decode_specialchars
// Decode string encoded with htmlspecialchars()
  function zen_decode_specialchars($string){
    $string=str_replace('&gt;', '>', $string);
    $string=str_replace('&lt;', '<', $string);
    $string=str_replace('&#039;', "'", $string);
    $string=str_replace('&quot;', "\"", $string);
    $string=str_replace('&amp;', '&', $string);

    return $string;
  }

////
// remove common HTML from text for display as paragraph
  function zen_clean_html($clean_it, $extraTags = '') {
    if (!is_array($extraTags)) $extraTags = array($extraTags);

    $clean_it = preg_replace('/\r/', ' ', $clean_it);
    $clean_it = preg_replace('/\t/', ' ', $clean_it);
    $clean_it = preg_replace('/\n/', ' ', $clean_it);

    $clean_it= nl2br($clean_it);

// update breaks with a space for text displays in all listings with descriptions
    while (strstr($clean_it, '<br>'))   $clean_it = str_replace('<br>',   ' ', $clean_it);
    while (strstr($clean_it, '<br />')) $clean_it = str_replace('<br />', ' ', $clean_it);
    while (strstr($clean_it, '<br/>'))  $clean_it = str_replace('<br/>',  ' ', $clean_it);
    while (strstr($clean_it, '<p>'))    $clean_it = str_replace('<p>',    ' ', $clean_it);
    while (strstr($clean_it, '</p>'))   $clean_it = str_replace('</p>',   ' ', $clean_it);

// temporary fix more for reviews than anything else
    while (strstr($clean_it, '<span class="smallText">')) $clean_it = str_replace('<span class="smallText">', ' ', $clean_it);
    while (strstr($clean_it, '</span>')) $clean_it = str_replace('</span>', ' ', $clean_it);

// clean general and specific tags:
    $taglist = array('strong','b','u','i','em');
    $taglist = array_merge($taglist, (is_array($extraTags) ? $extraTags : array($extraTags)));
    foreach ($taglist as $tofind) {
      if ($tofind != '') $clean_it = preg_replace("/<[\/\!]*?" . $tofind . "[^<>]*?>/si", ' ', $clean_it);
    }

// remove any double-spaces created by cleanups:
    while (strstr($clean_it, '  ')) $clean_it = str_replace('  ', ' ', $clean_it);

// remove other html code to prevent problems on display of text
    $clean_it = strip_tags($clean_it);
    return $clean_it;
  }


////
// find module directory
// include template specific immediate /modules files
// new_products, products_new_listing, featured_products, featured_products_listing, product_listing, specials_index, upcoming,
// products_all_listing, products_discount_prices, also_purchased_products
  function zen_get_module_directory($check_file, $dir_only = 'false') {
    global $template_dir;

    $zv_filename = $check_file;
    if (!strstr($zv_filename, '.php')) $zv_filename .= '.php';

    if (file_exists(DIR_WS_MODULES . $template_dir . '/' . $zv_filename)) {
      $template_dir_select = $template_dir . '/';
    } else {
      $template_dir_select = '';
    }

    if ($dir_only == 'true') {
      return $template_dir_select;
    } else {
      return $template_dir_select . $zv_filename;
    }
  }


////
// find template or default file
  function zen_get_file_directory($check_directory, $check_file, $dir_only = 'false') {
    global $template_dir;

    $zv_filename = $check_file;
    if (!strstr($zv_filename, '.php')) $zv_filename .= '.php';

    if (file_exists($check_directory . $template_dir . '/' . $zv_filename)) {
      $zv_directory = $check_directory . $template_dir . '/';
    } else {
      $zv_directory = $check_directory;
    }

    if ($dir_only == 'true') {
      return $zv_directory;
    } else {
      return $zv_directory . $zv_filename;
    }
  }

// check to see if database stored GET terms are in the URL as $_GET parameters
  function zen_check_url_get_terms() {
    global $db;
    $zp_sql = "select * from " . TABLE_GET_TERMS_TO_FILTER;
    $zp_filter_terms = $db->Execute($zp_sql);
    $zp_result = false;
    while (!$zp_filter_terms->EOF) {
      if (isset($_GET[$zp_filter_terms->fields['get_term_name']]) && zen_not_null($_GET[$zp_filter_terms->fields['get_term_name']])) $zp_result = true;
      $zp_filter_terms->MoveNext();
    }
    return $zp_result;
  }

// replacement for fmod to manage values < 1
  function fmod_round($x, $y) {
    $x = strval($x);
    $y = strval($y);
    $zc_round = ($x*1000)/($y*1000);
    $zc_round_ceil = (int)($zc_round);
    $multiplier = $zc_round_ceil * $y;
    $results = abs(round($x - $multiplier, 6));
     return $results;
  }

////
// return truncated paragraph
  function zen_truncate_paragraph($paragraph, $size = 100, $word = ' ') {
    $zv_paragraph = "";
    $word = explode(" ", $paragraph);
    $zv_total = count($word);
    if ($zv_total > $size) {
      for ($x=0; $x < $size; $x++) {
        $zv_paragraph = $zv_paragraph . $word[$x] . " ";
      }
      $zv_paragraph = trim($zv_paragraph);
    } else {
      $zv_paragraph = trim($paragraph);
    }
    return $zv_paragraph;
  }



/**
 * return an array with zones defined for the specified country
 */
  function zen_get_country_zones($country_id) {
    global $db;
    $zones_array = array();
    $zones = $db->Execute("select zone_id, zone_name
                           from " . TABLE_ZONES . "
                           where zone_country_id = '" . (int)$country_id . "'
                           order by zone_name");
    while (!$zones->EOF) {
      $zones_array[] = array('id' => $zones->fields['zone_id'],
                             'text' => $zones->fields['zone_name']);
      $zones->MoveNext();
    }

    return $zones_array;
  }

/**
 * return an array with country names and matching zones to be used in pulldown menus
 */
  function zen_prepare_country_zones_pull_down($country_id = '') {
// preset the width of the drop-down for Netscape
    $pre = '';
    if ( (!zen_browser_detect('MSIE')) && (zen_browser_detect('Mozilla/4')) ) {
      for ($i=0; $i<45; $i++) $pre .= '&nbsp;';
    }

    $zones = zen_get_country_zones($country_id);

    if (sizeof($zones) > 0) {
      $zones_select = array(array('id' => '', 'text' => PLEASE_SELECT));
      $zones = array_merge($zones_select, $zones);
    } else {
      $zones = array(array('id' => '', 'text' => TYPE_BELOW));
// create dummy options for Netscape to preset the height of the drop-down
      if ( (!zen_browser_detect('MSIE')) && (zen_browser_detect('Mozilla/4')) ) {
        for ($i=0; $i<9; $i++) {
          $zones[] = array('id' => '', 'text' => $pre);
        }
      }
    }

    return $zones;
  }

/**
 * supplies javascript to dynamically update the states/provinces list when the country is changed
 * TABLES: zones
 *
 * return string
 */
  function zen_js_zone_list($country, $form, $field) {
    global $db;
    $countries = $db->Execute("select distinct zone_country_id
                               from " . TABLE_ZONES . "
                               order by zone_country_id");
    $num_country = 1;
    $output_string = '';
    while (!$countries->EOF) {
      if ($num_country == 1) {
        $output_string .= '  if (' . $country . ' == "' . $countries->fields['zone_country_id'] . '") {' . "\n";
      } else {
        $output_string .= '  } else if (' . $country . ' == "' . $countries->fields['zone_country_id'] . '") {' . "\n";
      }

      $states = $db->Execute("select zone_name, zone_id
                              from " . TABLE_ZONES . "
                              where zone_country_id = '" . $countries->fields['zone_country_id'] . "'
                              order by zone_name");
      $num_state = 1;
      while (!$states->EOF) {
        if ($num_state == '1') $output_string .= '    ' . $form . '.' . $field . '.options[0] = new Option("' . PLEASE_SELECT . '", "");' . "\n";
        $output_string .= '    ' . $form . '.' . $field . '.options[' . $num_state . '] = new Option("' . $states->fields['zone_name'] . '", "' . $states->fields['zone_id'] . '");' . "\n";
        $num_state++;
        $states->MoveNext();
      }
      $num_country++;
      $countries->MoveNext();
      $output_string .= '    hideStateField(' . $form . ');' . "\n" ;
    }
    $output_string .= '  } else {' . "\n" .
                      '    ' . $form . '.' . $field . '.options[0] = new Option("' . TYPE_BELOW . '", "");' . "\n" .
                      '    showStateField(' . $form . ');' . "\n" .
                      '  }' . "\n";
    return $output_string;
  }



////
// compute the days between two dates
  function date_diff($date1, $date2) {
  //$date1  today, or any other day
  //$date2  date to check against

    $d1 = explode("-", $date1);
    $y1 = $d1[0];
    $m1 = $d1[1];
    $d1 = $d1[2];

    $d2 = explode("-", $date2);
    $y2 = $d2[0];
    $m2 = $d2[1];
    $d2 = $d2[2];

    $date1_set = mktime(0,0,0, $m1, $d1, $y1);
    $date2_set = mktime(0,0,0, $m2, $d2, $y2);

    return(round(($date2_set-$date1_set)/(60*60*24)));
  }


/**
 * strip out accented characters to reasonable approximations of english equivalents
 */
  function replace_accents($s) {
    $s = htmlentities($s);
    $s = preg_replace ('/&([a-zA-Z])(uml|acute|elig|grave|circ|tilde|cedil|ring|quest|slash|caron);/', '$1', $s);
    $s = html_entity_decode($s);
    return $s;
  }

/**
 * function to override PHP's is_writable() which can occasionally be unreliable due to O/S and F/S differences
 * attempts to open the specified file for writing. Returns true if successful, false if not.
 * if a directory is specified, uses PHP's is_writable() anyway
 *
 * @var string
 * @return boolean
 */
  function is__writeable($filepath) {
    if (is_dir($filepath)) return is_writable($filepath);
    $fp = @fopen($filepath, 'a');
    if ($fp) {
      @fclose($fp);
      return true;
    }
    return false;
  }


/////////////////////////////////////////////
////
// call additional function files
// prices and quantities
  require(DIR_WS_FUNCTIONS . 'functions_prices.php');
// taxes
  require(DIR_WS_FUNCTIONS . 'functions_taxes.php');
// gv and coupons
  require(DIR_WS_FUNCTIONS . 'functions_gvcoupons.php');
// categories, paths, pulldowns
  require(DIR_WS_FUNCTIONS . 'functions_categories.php');
// customers and addresses
  require(DIR_WS_FUNCTIONS . 'functions_customers.php');
// lookup information
  require(DIR_WS_FUNCTIONS . 'functions_lookups.php');
////
/////////////////////////////////////////////

?>