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Fatal error: Cannot redeclare class zones...


Almirena

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The following error message appears when I go to the shipping module in admin:

 

Fatal error: Cannot redeclare class zones in /home/sounds/public_html/catalog/includes/modules/shipping/zones.php on line 97

 

This occurred after I followed the instructions for the Additional Shipping Options for Zone Modules, since I need to be able to send goods from Australia to overseas (various postage rates to various continents for various weights, and various postage rates to various states within Australia for various weights).

 

Can anyone help? What's gone wrong? I'm not familiar with PHP, but willing to experiment - however, since I need to get this up and running asap, I don't have the time to learn in-depth...

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This, by the way, is the code in the zones.php file in includes/modules/shipping:

 

<?php

/*

 

  $Id: zones.php,v 1.20 2003/06/15 19:48:09 thomasamoulton Exp $

 

  osCommerce, Open Source E-Commerce Solutions

  http://www.oscommerce.com

 

  Copyright © 2003 osCommerce

 

  Released under the GNU General Public License

 

  USAGE

  By default, the module comes with support for 1 zone.  This can be

  easily changed by editing the line below in the zones constructor

  that defines $this->num_zones.

 

  Next, you will want to activate the module by going to the Admin screen,

  clicking on Modules, then clicking on Shipping.  A list of all shipping

  modules should appear.  Click on the green dot next to the one labeled

  zones.php.  A list of settings will appear to the right.  Click on the

  Edit button.

 

  PLEASE NOTE THAT YOU WILL LOSE YOUR CURRENT SHIPPING RATES AND OTHER

  SETTINGS IF YOU TURN OFF THIS SHIPPING METHOD.  Make sure you keep a

  backup of your shipping settings somewhere at all times.

 

  If you want an additional handling charge applied to orders that use this

  method, set the Handling Fee field.

 

  Next, you will need to define which countries are in each zone.  Determining

  this might take some time and effort.  You should group a set of countries

  that has similar shipping charges for the same weight.  For instance, when

  shipping from the US, the countries of Japan, Australia, New Zealand, and

  Singapore have similar shipping rates.  As an example, one of my customers

  is using this set of zones:

    1: USA

    2: Canada

    3: Austria, Belgium, Great Britain, France, Germany, Greenland, Iceland,

      Ireland, Italy, Norway, Holland/Netherlands, Denmark, Poland, Spain,

      Sweden, Switzerland, Finland, Portugal, Israel, Greece

    4: Japan, Australia, New Zealand, Singapore

    5: Taiwan, China, Hong Kong

 

  When you enter these country lists, enter them into the Zone X Countries

  fields, where "X" is the number of the zone.  They should be entered as

  two character ISO country codes in all capital letters.  They should be

  separated by commas with no spaces or other punctuation. For example:

    1: US

    2: CA

    3: GB,FR,DE,NL,JP

    4: JP,AU,NZ,SG

    5: TW,CN,HK

 

  Now you need to set up the shipping rate tables for each zone.  Again,

  some time and effort will go into setting the appropriate rates.  You

  will define a set of weight ranges and the shipping price for each

  range.  For instance, you might want an order than weighs more than 0

  and less than or equal to 3 to cost 5.50 to ship to a certain zone. 

  This would be defined by this:  3:5.5

 

  You should combine a bunch of these rates together in a comma delimited

  list and enter them into the "Zone X Shipping Table" fields where "X"

  is the zone number.  For example, this might be used for Zone 1:

    1:3.5,2:3.95,3:5.2,4:6.45,5:7.7,6:10.4,7:11.85, 8:13.3,9:14.75,10:16.2,11:17.65,

    12:19.1,13:20.55,14:22,15:23.45

 

  The above example includes weights over 0 and up to 15.  Note that

  units are not specified in this explanation since they should be

  specific to your locale.

 

  CAVEATS

  At this time, it does not deal with weights that are above the highest amount

  defined.  This will probably be the next area to be improved with the

  module.  For now, you could have one last very high range with a very

  high shipping rate to discourage orders of that magnitude.  For

  instance:  999:1000

 

  If you want to be able to ship to any country in the world, you will

  need to enter every country code into the Country fields. For most

  shops, you will not want to enter every country.  This is often

  because of too much fraud from certain places. If a country is not

  listed, then the module will add a $0.00 shipping charge and will

  indicate that shipping is not available to that destination. 

  PLEASE NOTE THAT THE ORDER CAN STILL BE COMPLETED AND PROCESSED!

 

  It appears that the osC shipping system automatically rounds the

  shipping weight up to the nearest whole unit.  This makes it more

  difficult to design precise shipping tables.  If you want to, you

  can hack the shipping.php file to get rid of the rounding.

 

  Lastly, there is a limit of 255 characters on each of the Zone

  Shipping Tables and Zone Countries.

 

*/

 

  class zones {

    var $code, $title, $description, $enabled, $num_zones;

 

// class constructor

    function zones() {

      $this->code = 'zones';

      $this->title = MODULE_SHIPPING_ZONES_TEXT_TITLE;

      $this->description = MODULE_SHIPPING_ZONES_TEXT_DESCRIPTION;

      $this->sort_order = MODULE_SHIPPING_ZONES_SORT_ORDER;

      $this->icon = '';

      $this->tax_class = MODULE_SHIPPING_ZONES_TAX_CLASS;

      $this->enabled = ((MODULE_SHIPPING_ZONES_STATUS == 'True') ? true : false);

 

      // CUSTOMIZE THIS SETTING FOR THE NUMBER OF ZONES NEEDED

      $this->num_zones = 3;

    }

 

// class methods

    function quote($method = '') {

      global $order, $cart, $shipping_weight, $shipping_num_boxes;

     

      if (MODULE_SHIPPING_ZONES_MODE == 'price') {

        $order_total = $cart->show_total();

      } else {

        $order_total = $shipping_weight;

      }

 

      $dest_country = $order->delivery['country']['iso_code_2'];

      $dest_zone = 0;

      $error = false;

 

      for ($i=1; $i<=$this->num_zones; $i++) {

        $countries_table = constant('MODULE_SHIPPING_ZONES_COUNTRIES_' . $i);

        $country_zones = split("[,]", $countries_table);

        if (in_array($dest_country, $country_zones)) {

          $dest_zone = $i;

          break;

        }

      }

 

      if ($dest_zone == 0) {

        $error = true;

      } else {

        $shipping = -1;

        $zones_cost = constant('MODULE_SHIPPING_ZONES_COST_' . $dest_zone);

 

        $zones_table = split("[:,]" , $zones_cost);

        $size = sizeof($zones_table);

        for ($i=0; $i<$size; $i+=2) {

          if ($order_total <= $zones_table[$i]) {

            $shipping = $zones_table[$i+1];

            $shipping_method = constant('MODULE_SHIPPING_ZONES_TITLE_' . $dest_zone);

            if (MODULE_SHIPPING_ZONES_MODE == 'weight')

            $shipping_method .= " : " . $shipping_weight . ' ' . MODULE_SHIPPING_ZONES_TEXT_UNITS;

            break;

          }

        }

 

        if ($shipping == -1) {

          $shipping_cost = 0;

          $shipping_method = MODULE_SHIPPING_ZONES_UNDEFINED_RATE;

        } else {

          $shipping_cost = ($shipping * $shipping_num_boxes) + constant('MODULE_SHIPPING_ZONES_HANDLING_' . $dest_zone);

        }

      }

 

      $this->quotes = array('id' => $this->code,

                            'module' => MODULE_SHIPPING_ZONES_TEXT_TITLE,

                            'methods' => array(array('id' => $this->code,

                                                    'title' => $shipping_method,

                                                    'cost' => $shipping_cost)));

 

      if ($this->tax_class > 0) {

        $this->quotes['tax'] = tep_get_tax_rate($this->tax_class, $order->delivery['country']['id'], $order->delivery['zone_id']);

      }

 

      if (tep_not_null($this->icon)) $this->quotes['icon'] = tep_image($this->icon, $this->title);

 

      if ($error == true) $this->quotes['error'] = MODULE_SHIPPING_ZONES_INVALID_ZONE;

 

      return $this->quotes;

    }

 

    function check() {

      if (!isset($this->_check)) {

        $check_query = tep_db_query("select configuration_value from " . TABLE_CONFIGURATION . " where configuration_key = 'MODULE_SHIPPING_ZONES_STATUS'");

        $this->_check = tep_db_num_rows($check_query);

      }

      return $this->_check;

    }

 

    function install() {

      tep_db_query("insert into " . TABLE_CONFIGURATION . " (configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order, set_function, date_added) VALUES ('Enable Zones Method', 'MODULE_SHIPPING_ZONES_STATUS', 'True', 'Do you want to offer zone rate shipping?', '6', '0', 'tep_cfg_select_option(array(\'True\', \'False\'), ', now())");

      tep_db_query("insert into " . TABLE_CONFIGURATION . " (configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order, use_function, set_function, date_added) values ('Tax Class', 'MODULE_SHIPPING_ZONES_TAX_CLASS', '0', 'Use the following tax class on the shipping fee.', '6', '0', 'tep_get_tax_class_title', 'tep_cfg_pull_down_tax_classes(', now())");

      tep_db_query("insert into " . TABLE_CONFIGURATION . " (configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order, date_added) values ('Sort Order', 'MODULE_SHIPPING_ZONES_SORT_ORDER', '0', 'Sort order of display.', '6', '0', now())");

      tep_db_query("insert into " . TABLE_CONFIGURATION . " (configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order, set_function, date_added) values ('Table Method', 'MODULE_SHIPPING_ZONES_MODE', 'weight', 'The shipping cost is based on the order total or the total weight of the items ordered.', '6', '0', 'tep_cfg_select_option(array(\'weight\', \'price\'), ', now())");

      for ($i = 1; $i <= $this->num_zones; $i++) {

        $default_countries = '';

        if ($i == 1) {

          $default_countries = 'US';

        } else if ($i == 2) {

          $default_countries = 'CA';

        }

        tep_db_query("insert into " . TABLE_CONFIGURATION . " (configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order, date_added) values ('Zone " . $i ." Countries', 'MODULE_SHIPPING_ZONES_COUNTRIES_" . $i ."', '" . $default_countries . "', 'Comma separated list of two character ISO country codes that are part of Zone " . $i . ".', '6', '0', now())");

        tep_db_query("insert into " . TABLE_CONFIGURATION . " (configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order, date_added) values ('Zone " . $i ." Shipping Method Name', 'MODULE_SHIPPING_ZONES_TITLE_" . $i ."', 'UPS Ground " . $default_countries . "', 'Description of this shipping method shown during checkout. ie. UPS Ground.', '6', '0', now())");

        tep_db_query("insert into " . TABLE_CONFIGURATION . " (configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order, date_added) values ('Zone " . $i ." Shipping Table', 'MODULE_SHIPPING_ZONES_COST_" . $i ."', '3:8.50,7:10.50,99:20.00', 'Shipping rates to Zone " . $i . " destinations based on a group of maximum order weights. Example: 3:8.50,7:10.50,... Weights less than or equal to 3 would cost 8.50 for Zone " . $i . " destinations.', '6', '0', now())");

        tep_db_query("insert into " . TABLE_CONFIGURATION . " (configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order, date_added) values ('Zone " . $i ." Handling Fee', 'MODULE_SHIPPING_ZONES_HANDLING_" . $i."', '0', 'Handling Fee for this shipping zone', '6', '0', now())");

      }

    }

 

    function remove() {

      tep_db_query("delete from " . TABLE_CONFIGURATION . " where configuration_key in ('" . implode("', '", $this->keys()) . "')");

    }

 

    function keys() {

      $keys = array('MODULE_SHIPPING_ZONES_STATUS', 'MODULE_SHIPPING_ZONES_MODE', 'MODULE_SHIPPING_ZONES_TAX_CLASS', 'MODULE_SHIPPING_ZONES_SORT_ORDER');

 

      for ($i=1; $i<=$this->num_zones; $i++) {

        $keys[] = 'MODULE_SHIPPING_ZONES_COUNTRIES_' . $i;

        $keys[] = 'MODULE_SHIPPING_ZONES_TITLE_' . $i;

        $keys[] = 'MODULE_SHIPPING_ZONES_COST_' . $i;

        $keys[] = 'MODULE_SHIPPING_ZONES_HANDLING_' . $i;

      }

 

      return $keys;

    }

  }

?>

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Line 97 has:

 

  class zones {

 

I am not familiar with your mod, but, the above can only be declared once - perhaps you need to uninstall the default zones module to use your mods (re-read the documentation)? It is also possible that your contribution is old and therefore not compatible. Look for the above code in your new files.

 

Matti

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There is a 'remove' button when you select the module in admin - it can also be just turned off, however, I would be wary that there may be a conflict using this method - try it, if it doesn't work then try remove - to reinstall you simply click the 'install' button, so its not a problem. Please read the docs for your new module ;)

 

Matti

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I had already read the documentation, such as it was, for the new module.

 

I double-checked the shipping module selection in admin, and zone WAS deselected. By clicking onto it and having the options EDIT or REMOVE, then clicking onto REMOVE, nothing further was accomplished. It remains uninstalled, as it was before.

 

I'm at my wit's end.

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I think I have solved the problem. I ended up discarding the module and just copying and editing the zones.php files myself.

 

Thanks for the suggestions and help - if anyone else gets into the same situation, they're free to email me for more detailed descriptions of what I did to install several different zone modules, for the following areas:

 

Seven states within Australia

 

New Zealand

 

Countries in postal zones 1, 2, and 3

 

Countries in postal zone 4

 

Countries in postal zone 5.

 

My modules are, of course, set up for postal rates from Victoria, Australia, but can easily be edited within admin to suit individual needs.

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  • 10 months later...
I think I have solved the problem. I ended up discarding the module and just copying and editing the zones.php files myself.

 

Thanks for the suggestions and help - if anyone else gets into the same situation, they're free to email me for more detailed descriptions of what I did to install several different zone modules, for the following areas:

 

Seven states within Australia

 

New Zealand

 

Countries in postal zones 1, 2, and 3

 

Countries in postal zone 4

 

Countries in postal zone 5.

 

My modules are, of course, set up for postal rates from Victoria, Australia, but can easily be edited within admin to suit individual needs.

 

This just happened to me. All you have to do is to delete the zone_single.php file.

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  • 2 weeks later...

I had the very same problem - after long frustrating hours I finally discovered that I had uploaded the wrong files into the languages/english/modules/shipping directory. Instead of the language zones.php file, I had uploaded the one which lives in modules/shipping, so the calss was declared twice.

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  • 1 year later...

I also got this error when I tried to be clever and keeping an old version of zones.php in the modules folder whilst upgrading to the additional shipping mode zones module.

(http://www.oscommerce.com/community/contributions,1752/category,2/search,express)

 

By leaving the old zones.php in the directory (albeit, renamed 'zones-old.php') oscommerce simply read both files in and tried to rerun the various processes. I renamed the file 'zones.php.old' which oscommerce doesn't read and life was sweet again.

 

Complete schoolboy error. I feel so ashamed.

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  • 4 weeks later...

i'm having the same problem.. i'd tried with the "Additional Shipping Options for Zone Module" and set up shipping rates as for eg. 100:5,500:8,1000:10

i put in the product a weight of 50 and it shows a wrong weight and price..

 

can someone help me??

 

thank's

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  • 7 months later...
I also got this error when I tried to be clever and keeping an old version of zones.php in the modules folder whilst upgrading to the additional shipping mode zones module.

(http://www.oscommerce.com/community/contributions,1752/category,2/search,express)

 

By leaving the old zones.php in the directory (albeit, renamed 'zones-old.php') oscommerce simply read both files in and tried to rerun the various processes. I renamed the file 'zones.php.old' which oscommerce doesn't read and life was sweet again.

 

Complete schoolboy error. I feel so ashamed.

 

OH MY GAWD - I can't believe it was that simple. I was having problems because I renamed one of my modules "table pre-jan05.php" and it was causing all kinds of errors with my table.php I was getting cannot redeclare class table issues.

 

Finally after reading this, I just deleted the "table pre-jan05.php" and now it works.

 

Teresa

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