Arrays in config files

Hi. Not so far i found that using arrays in config usefull for definin
errors, but i can't find functionalyti that help me define arrays for option
s or
radios.
I wrote some changes in Config_File.class.php.

Exsample who it works:

orders.cnf
 TypeOptions[option_value1]=options_name1

 TypeOptions[option_value1]=options_name1


orders.php
$smarty->config_load('orders.cnf');
$conf = $smarty->get_config_vars();
$smarty->assign('TypeOptions', $conf['TypeOptions']);

order.tpl.html
{html_radios options=$TypeOptions selected=$type name='type' separator='<br>
'}

I think it's very usefull.
In attach Config_File.class.php with small changes, changes mark with
//BEGIN changes
.. some code with my changes
//END changes


Thank you Bigildeev Artem(camel)
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