wp_cookie_constants()
Defines cookie-related WordPress constants.
WordPress File wp-includes/default-constants.php
wp_functionality_constants()
Defines functionality-related WordPress constants.
wp_initial_constants()
Defines initial WordPress constants.
wp_plugin_directory_constants()
Defines plugin directory WordPress constants.
wp_ssl_constants()
Defines SSL-related WordPress constants.
wp_templating_constants()
Defines templating-related WordPress constants.