The 'get_theme_starter_content' PHP filter in WordPress allows developers to easily add starter content to their themes, providing users with a pre-populated site that they can customize.

The WordPress 'hidden_columns' PHP filter allows developers to hide specific columns in the admin panel.

The WordPress 'heartbeat_settings' PHP filter allows developers to customize the frequency and behavior of the Heartbeat API. This can improve site performance and reduce server load.

The 'manage_pages_columns' PHP filter in WordPress allows developers to customize the columns displayed on the Pages screen in the admin dashboard. This can be useful for organizing and presenting information…

The 'icon_dir' PHP filter in WordPress allows developers to customize the directory path for icon files. This can be useful for creating custom icon sets or organizing existing ones.

The 'is_header_video_active' PHP filter in WordPress allows developers to control the display of header videos on their website.

The 'is_active_sidebar' PHP filter in WordPress allows developers to check if a specific sidebar is active on a page or not. This can be useful for customizing content based on…

The 'load_default_widgets' PHP filter in WordPress allows developers to modify the default widgets that are loaded when a new site is created. This can be useful for customizing the site's…

The 'load_default_embeds' PHP filter in WordPress allows developers to modify the default oEmbed providers and add custom providers to embed content from various sources.