Call to undefined function issue

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I know there are other, maybe better ways to do what I want to achieve, but I have to use this solution.

I have two stylesheets:

  • style.css – normal stylesheet
  • style-dynamic.php – dynamic stylesheet linked to the first one

I’m using some PHP code in the second one, like:

#body {
    background-color: <?php echo get_option('theme_background'); ?>;
}

Now the point is that the style-dynamic.php file doesn’t know WordPress functions, and the code above gives:

Fatal error: Call to undefined function get_option() in C:\xampp\htdocs\wordpress\wp-content\themes\mytheme\style-dynamic.php on line 12

I guess I have to load wp_load.php (only?) and that’s tricky, because I’m not sure how exactly? I was trying require_once, but I’m not sure I’ll be able to jump from theme directory right to the WordPress main dir where wp-load.php file is?

Edit

Of course 

require_once(ABSPATH . 'wp-load.php');

Outputs another error:

Use of undefined constant ABSPATH – assumed 'ABSPATH'

2 Answers
2

Christ, once again I was fighting with something for a few days straight and found a solution 20 minutes after asking on StackExchange. WHY?

require_once('../../../wp-load.php');

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