apply_filters( “delete_{$meta_type}_metadata”, null|bool $delete, int $object_id, string $meta_key, mixed $meta_value, bool $delete_all )

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Short-circuits deleting metadata of a specific type.


The dynamic portion of the hook name, $meta_type, refers to the meta object type (post, comment, term, user, or any other type with an associated meta table).
Returning a non-null value will effectively short-circuit the function.

Possible hook names include:

  • delete_post_metadata
  • delete_comment_metadata
  • delete_term_metadata
  • delete_user_metadata


Whether to allow metadata deletion of the given type.
ID of the object metadata is for.
Metadata key.
Metadata value. Must be serializable if non-scalar.
Whether to delete the matching metadata entries for all objects, ignoring the specified $object_id.
Default false.


$check = apply_filters( "delete_{$meta_type}_metadata", null, $object_id, $meta_key, $meta_value, $delete_all );



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