register_meta()
Function: Registers a meta key.
Source: wp-includes/meta.php:1399
register_meta_args
Filter Hook: Filters the registration arguments when registering meta.
Source: wp-includes/meta.php:1447
registered_meta_key_exists()
Function: Checks if a meta key is registered.
Source: wp-includes/meta.php:1590
unregister_meta_key()
Function: Unregisters a meta key from the list of registered keys.
Source: wp-includes/meta.php:1608
delete_metadata_by_mid()
Function: Deletes metadata by meta ID.
Source: wp-includes/meta.php:982
delete_{$meta_type}meta
Action Hook: Fires immediately before deleting post or comment metadata of a specific type.
Source: wp-includes/meta.php:1055
deleted_{$meta_type}meta
Action Hook: Fires immediately after deleting post or comment metadata of a specific type.
Source: wp-includes/meta.php:1086
update_meta_cache()
Function: Updates the metadata cache for the specified objects.
Source: wp-includes/meta.php:1109
wp_metadata_lazyloader()
Function: Retrieves the queue for lazy-loading metadata.
Source: wp-includes/meta.php:1215
delete_{$meta_type}_metadata
Filter Hook: Short-circuits deleting metadata of a specific type.
Source: wp-includes/meta.php:428