unregister_meta_key()
Function: Unregisters a meta key from the list of registered keys.
Source: wp-includes/meta.php:1608
get_registered_meta_keys()
Function: Retrieves a list of registered metadata args for an object type, keyed by their meta keys.
Source: wp-includes/meta.php:1657
get_registered_metadata()
Function: Retrieves registered metadata for a specified object.
Source: wp-includes/meta.php:1683
_wp_register_meta_args_whitelist()
Function: Filters out `register_meta()` args based on an allowed list.
Source: wp-includes/deprecated.php:4056
deleted_{$meta_type}_meta
Action Hook: Fires immediately after deleting metadata of a specific type.
Source: wp-includes/meta.php:528
update_metadata_by_mid()
Function: Updates metadata by meta ID.
Source: wp-includes/meta.php:860
deleted_postmeta
Action Hook: Fires immediately after deleting metadata for a post.
Source: wp-includes/meta.php:539
delete_metadata_by_mid()
Function: Deletes metadata by meta ID.
Source: wp-includes/meta.php:982
get_{$meta_type}_metadata
Filter Hook: Short-circuits the return value of a meta field.
Source: wp-includes/meta.php:635
update_meta_cache()
Function: Updates the metadata cache for the specified objects.
Source: wp-includes/meta.php:1109