Themes

Call to undefined function add_action() in plugin

Call to undefined function add_action() in plugin

If add_action comes up undefined, you're trying to run it outside of your theme's core files - basically, it's running without any of the processing WordPress is supposed to do before hitting your custom functions. This should be in your theme's functions. php file or within a plugin, as Colin pointed out.

Taxonomy Get list of terms that have posts in another term
Get list of terms that have posts in another term
How do I get current post terms? How do you find all terms? How do I find post taxonomy? How do I get post terms in WordPress? What is object ID in WP...
Redirect What does WordPress uses to redirect users from one url to another?
What does WordPress uses to redirect users from one url to another?
Redirection The simplest way to add and manage redirects in WordPress is by using the Redirection plugin. Install and activate the plugin. ... You can...
Header Remove white area after header (for 1 page) and moving widgets
Remove white area after header (for 1 page) and moving widgets
How do you remove or reduce white space gap between header and page in Elementor? How do I remove the space below my header? How do I get rid of the w...