Title: How do I understand functions.php files – learning
Last modified: August 20, 2016

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# How do I understand functions.php files – learning

 *  [Jones Elizabeth](https://wordpress.org/support/users/leonagrey/)
 * (@leonagrey)
 * [13 years, 9 months ago](https://wordpress.org/support/topic/how-do-i-understand-functionsphp-files-learning/)
 * Hi All,
 * I’m just learning about wordpress development. I don’t understand functions.php
   files very well, at the moment. For example, how would you know to write:
 * //remove header text and null the text color:
    define (‘NO_HEADER_TEXT’, true);
   define (‘HEADER_TEXTCOLOR’, ”);
 * Can you recommend any tutorials, that start with explaining simple functions.
   php files to more complex.
 * Thanks 🙂

Viewing 3 replies - 1 through 3 (of 3 total)

 *  [esmi](https://wordpress.org/support/users/esmi/)
 * (@esmi)
 * [13 years, 9 months ago](https://wordpress.org/support/topic/how-do-i-understand-functionsphp-files-learning/#post-3041607)
 * That’s older, deprecated WP functionality. Instead, have a look at add_theme_support(‘
   custom-header’).
    [http://make.wordpress.org/themes/2012/04/06/updating-custom-backgrounds-and-custom-headers-for-wordpress-3-4/](http://make.wordpress.org/themes/2012/04/06/updating-custom-backgrounds-and-custom-headers-for-wordpress-3-4/)
   [http://sabreuse.com/flexible-headers-in-wordpress-3-4-themes/](http://sabreuse.com/flexible-headers-in-wordpress-3-4-themes/)
 *  Thread Starter [Jones Elizabeth](https://wordpress.org/support/users/leonagrey/)
 * (@leonagrey)
 * [13 years, 9 months ago](https://wordpress.org/support/topic/how-do-i-understand-functionsphp-files-learning/#post-3041659)
 * Thanks [@esmi](https://wordpress.org/support/users/esmi/) , that’s how much of
   a newbie I am! I’m following a tutorial book, which is based on 3.0. Do you know
   where I can find a list of the changes, from 3.0 to 3.4? Thanks again! 🙂
 *  [esmi](https://wordpress.org/support/users/esmi/)
 * (@esmi)
 * [13 years, 9 months ago](https://wordpress.org/support/topic/how-do-i-understand-functionsphp-files-learning/#post-3041681)
 * There is no on place that lists all of the changes. I can only suggest that you
   start looking around the [Codex](http://codex.wordpress.org/Main_Page). Where
   functions are deprecated, links will have been added to the relevant page pointing
   to the new function.

Viewing 3 replies - 1 through 3 (of 3 total)

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## Tags

 * [learning](https://wordpress.org/support/topic-tag/learning/)

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 3 replies
 * 2 participants
 * Last reply from: [esmi](https://wordpress.org/support/users/esmi/)
 * Last activity: [13 years, 9 months ago](https://wordpress.org/support/topic/how-do-i-understand-functionsphp-files-learning/#post-3041681)
 * Status: not resolved

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