Using WordPress ‘extra_{$context}_headers’ PHP filter
The 'extra_{$context}_headers' PHP filter in WordPress allows developers to add custom headers to HTTP responses.
Plugin
Using WordPress ‘gettext_{$domain}’ PHP filter
The WordPress 'gettext_{$domain}' PHP filter allows developers to modify the translation strings of their themes or plugins without having to modify the…
Using WordPress ‘install_plugins_table_api_args_{$tab}’ PHP filter
The WordPress 'install_plugins_table_api_args_{$tab}' PHP filter allows developers to customize the plugin installation table by modifying the API arguments.
Using WordPress ‘admin_print_styles’ PHP action
The 'admin_print_styles' PHP Action in WordPress: Adding Custom Stylesheets to the Admin Area.