Title: Difference between functions.php and customizer.php
Last modified: October 7, 2016

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# Difference between functions.php and customizer.php

 *  [kuiperzone](https://wordpress.org/support/users/kuiperzone/)
 * (@kuiperzone)
 * [9 years, 7 months ago](https://wordpress.org/support/topic/difference-between-functions-php-and-customizer-php/)
 * I’m writing my first theme.
 * However, I’m struggling to understand the difference between functions.php and
   customizer.php from a design perspective – i.e. what kind of functions do I put
   in each?
 * I can’t find much on-line explaining things, and the best I can figure out is
   that customizer code goes into customizer.php and “helper” functions in functions.
   php. The problem with this is that it would appear that all theme functions should
   go into customizer.php, and functions.php used only for those designed to be 
   overridden in child themes.
 * Is this so or not?
    -  This topic was modified 9 years, 7 months ago by [kuiperzone](https://wordpress.org/support/users/kuiperzone/).

The topic ‘Difference between functions.php and customizer.php’ is closed to new
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 * 0 replies
 * 1 participant
 * Last reply from: [kuiperzone](https://wordpress.org/support/users/kuiperzone/)
 * Last activity: [9 years, 7 months ago](https://wordpress.org/support/topic/difference-between-functions-php-and-customizer-php/)
 * Status: not resolved

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