I thought about adding it as inline CSS with code from the functions.php (not really sure how to do it).

Something like this:

function addcss() {
   background: $this_is_the_css_value;

I would like to know that. But if there's is a better option (without adding inline CSS). I would like to know it too.


2 Answers 2


One way of doing this would be to create a "CSS" file from PHP. In other words, create a file, call it something like style.css.php, and at the beginning of the file put:

<?php header("Content-type: text/css"); 

Then, link that file in the head of your theme file. Because the style.css.php file is a PHP file, anything you can do in a normal PHP file can be done in this file. As such, you can pull theme option values from the database and use them. For example:

    background: <?php echo get_option('my-header-background-color'); ?>

Of course, you need to get the options into the database first, but since your question didn't address that, I won't go into it here.

  • 1
    Thanks! I did the database part with this tutorial: net.tutsplus.com/tutorials/wordpress/…
    – wyc
    May 9, 2011 at 4:10
  • 4
    The best way is to write the file, after saving in the admin option panel to a fixed .css file and then enqueue that file. You don't want to re-run php for EACH page load ... (for the same css output). See other answers on the same question.
    – edelwater
    May 9, 2011 at 16:40

Generating CSS from PHP means it has to run that code for each pageload, if it is possible generate a static CSS file and then enqueue it.

So... See:

How do I add CSS options to my plugin without using inline styles? or

Best way to inject css into admin_head in plugins? or

How to add CSS style sheet dynamically in wordpress

  • Also this one, wordpress.stackexchange.com/questions/7048/…
    – Wyck
    May 9, 2011 at 16:53
  • +1 for the great suggestion! My preferred option would actually be to place the custom CSS in the head, which would avoid writing a file and doing the css.php business. As the OP did not want inline CSS, I thought the css.php trick would be ok, but I also really like your solution. The only downside to it, in my opinion, is potential issues with file permissions that cause difficulties writing the file.
    – tollmanz
    May 10, 2011 at 3:13

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