​The `deactivate_{$plugin}` PHP action in WordPress is fired when a plugin is about to be deactivated, allowing developers to perform cleanup tasks before the plugin is removed

The 'deactivated_plugin' PHP action is crucial in WordPress when a plugin is deactivated.

The 'default_avatar_select' PHP filter in WordPress allows developers to customize the default avatar selection process.

The 'default_category_post_types' PHP filter in WordPress allows developers to easily customize the post types that are assigned to the default category. This can be useful for organizing content and improving…

The WordPress 'default_contextual_help' PHP filter allows developers to customize and enhance the contextual help tabs in the WordPress admin panel. By using this filter, developers can add their own custom…

The WordPress 'default_excerpt' PHP filter allows developers to customize the default excerpt length and content.

The 'default_feed' PHP filter in WordPress allows developers to customize the default feed URL and content.

The 'default_hidden_columns' PHP filter in WordPress allows developers to customize the columns that are hidden by default in the admin panel. This can improve the user experience and streamline workflows.

The 'default_hidden_meta_boxes' PHP filter in WordPress allows developers to easily hide specific meta boxes in the admin panel.