Short-circuits deleting metadata of a specific type. The dynamic portion of the hook name, `$meta_type`, refers to the meta object type (blog, 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_blog_metadata` - `delete_post_metadata` - `delete_comment_metadata` - `delete_term_metadata` - `delete_user_metadata`
null, $object_id, $meta_key, $meta_value, $delete_all
Sortie :
@param null|bool $delete Whether to allow metadata deletion of the given type. @param int $object_id ID of the object metadata is for. @param string $meta_key Metadata key. @param mixed $meta_value Metadata value. Must be serializable if non-scalar. @param bool $delete_all Whether to delete the matching metadata entries
// Modifier la valeur avec le filtre 'delete_{$meta_type}_metadata'
add_filter('delete_{$meta_type}_metadata', 'ma_fonction_filtre', 10, 1);
function ma_fonction_filtre(null) {
// Modifier la valeur
return null;
}
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