How to add System > Configuration > Variable value in custom variable?

Question

I have added a custom field- Fax number on System > Configuration > General > Store information. I need to use this variable value in my cms page.
There are system variables which we can use in our cms blocks like {{store_name}}, {{store_email}}.
I want to use my fax number as a variable. Something like {{store_fax_number}}
I have tried creating custom variable but don't know how to add a configuration field value to that variable.
I know I can add directly my fax number to a custom variable. But I don't want to do that. I want to add a field in store information and then use that value in custom variable.
If anyone have any idea please help.

Answer 1

I found the solution.
To use a custom field value in cms block, you can use the below code.
I added a new field named fax in system.xml file located at local/Mage/Core/etc/ the code for adding the field is,

<config>
......
<general translate="label" module="core">
......
<groups>
......
<store_information translate="label">
......
    <fax translate="label">
       <label>Store Fax Number</label>
       <frontend_type>text</frontend_type>
       <sort_order>22</sort_order>
       <show_in_default>1</show_in_default>
       <show_in_website>1</show_in_website>
       <show_in_store>1</show_in_store>
    </fax>
......
</store_information>
......
</groups>
......
</general>
......
</config>

Now to use this variable value in your cms block you just need to add below code

{{config path="general/store_information/fax"}}

here fax is the name of your field.

Answer 2

The non-coding approach would be to use the inbuilt Custom Variables. You can find them under System -> Custom Variables. These will appear automatically in the Insert Variables selection screen when editing your CMS pages.

Alternatively if you add your fax number with code FAX you can use the following snippet in your CMS pages, email templates

{{customVar code=FAX}}