get_{$meta_type}_metadata_by_mid
Filter Hook: Filters whether to retrieve metadata of a specific type by meta ID.
Source: wp-includes/meta.php:628
update_{$meta_type}_metadata_by_mid
Filter Hook: Filters whether to update metadata of a specific type by meta ID.
Source: wp-includes/meta.php:694
delete_{$meta_type}_metadata_by_mid
Filter Hook: Filters whether to delete metadata of a specific type by meta ID.
Source: wp-includes/meta.php:806
update_{$meta_type}_metadata_cache
Filter Hook: Filters whether to update the metadata cache of a specific type.
Source: wp-includes/meta.php:909
get_object_subtype()
Function: Returns the object subtype for a given object ID of a specific type.
Source: wp-includes/meta.php:1383
get_object_subtype_{$object_type}
Filter Hook: Filters the object subtype identifier for a non standard object type.
Source: wp-includes/meta.php:1435
sanitize_{$object_type}_meta_{$meta_key}_for_{$object_subtype}
Filter Hook: Filters the sanitization of a specific meta key of a specific meta type and subtype.
Source: wp-includes/meta.php:1076
register_meta_args
Filter Hook: Filters the registration arguments when registering meta.
Source: wp-includes/meta.php:1178
registered_meta_key_exists()
Function: Checks if a meta key is registered.
Source: wp-includes/meta.php:1234
unregister_meta_key()
Function: Unregisters a meta key from the list of registered keys.
Source: wp-includes/meta.php:1251
get_registered_meta_keys()
Function: Retrieves a list of registered meta keys for an object type.
Source: wp-includes/meta.php:1299
get_registered_metadata()
Function: Retrieves registered metadata for a specified object.
Source: wp-includes/meta.php:1324
_wp_register_meta_args_whitelist()
Function: Filter out `register_meta()` args based on a whitelist.
Source: wp-includes/meta.php:1370
sanitize_{$object_type}_meta_{$meta_key}
Filter Hook: Filters the sanitization of a specific meta key of a specific meta type.
Source: wp-includes/meta.php:1092
wp_metadata_lazyloader()
Function: Retrieves the queue for lazy-loading metadata.
Source: wp-includes/meta.php:971
get_meta_sql()
Function: Given a meta query, generates SQL clauses to be appended to a main query.
Source: wp-includes/meta.php:995
_get_meta_table()
Function: Retrieve the name of the metadata table for the specified object type.
Source: wp-includes/meta.php:1010
is_protected_meta()
Function: Determine whether a meta key is protected.
Source: wp-includes/meta.php:1031
is_protected_meta
Filter Hook: Filters whether a meta key is protected.
Source: wp-includes/meta.php:1043
sanitize_meta()
Function: Sanitize meta value.
Source: wp-includes/meta.php:1059
sanitize_{$meta_type}_meta_{$meta_key}
Filter Hook: Filter the sanitization of a specific meta key of a specific meta type.
Source: wp-includes/meta.php:961
register_meta()
Function: Registers a meta key.
Source: wp-includes/meta.php:1132
delete_metadata_by_mid()
Function: Delete meta data by meta ID
Source: wp-includes/meta.php:772
delete_{$meta_type}_metadata
Filter Hook: Filters whether to delete metadata of a specific type.
Source: wp-includes/meta.php:368
delete_{$meta_type}meta
Action Hook: Fires immediately before deleting post or comment metadata of a specific type.
Source: wp-includes/meta.php:830
delete_{$meta_type}_meta
Action Hook: Fires immediately before deleting metadata of a specific type.
Source: wp-includes/meta.php:412
deleted_{$meta_type}meta
Action Hook: Fires immediately after deleting post or comment metadata of a specific type.
Source: wp-includes/meta.php:854
delete_postmeta
Action Hook: Fires immediately before deleting metadata for a post.
Source: wp-includes/meta.php:423
update_meta_cache()
Function: Update the metadata cache for the specified objects.
Source: wp-includes/meta.php:876
deleted_{$meta_type}_meta
Action Hook: Fires immediately after deleting metadata of a specific type.
Source: wp-includes/meta.php:455