PHP
PHP is a general-purpose scripting language geared toward web development.
Add IDs to all headings on a page in WordPress
See how to set the ID attribute for a heading, based on the heading content.
Display an error message in the admin panel if a plugin is not activated in WordPress
As a WordPress theme developer, you may encounter situations
where a plugin is required to use a particular functionality on a theme.
In such cases, it's important to check if the required plugin is installed and activated.
If the plugin is not installed, it is nice to display an error message
to inform the user that the feature is not available and that the plugin needs to be installed.
Removing selected Gutenberg block from post content in WordPress
There are cases where you want to hide a Gutenberg block from readers.
To do it you should add new filter for the_content.