delete_{$meta_type}_meta
Action Hook: Fires immediately before deleting metadata of a specific type.
Source: wp-includes/meta.php:479
delete_{$meta_type}_metadata
Filter Hook: Short-circuits deleting metadata of a specific type.
Source: wp-includes/meta.php:428
delete_{$meta_type}_metadata_by_mid
Filter Hook: Short-circuits deleting metadata of a specific type by meta ID.
Source: wp-includes/meta.php:1023
delete_{$meta_type}meta
Action Hook: Fires immediately before deleting post or comment metadata of a specific type.
Source: wp-includes/meta.php:1055
delete_{$taxonomy}
Action Hook: Fires after a term in a specific taxonomy is deleted.
Source: wp-includes/taxonomy.php:2212
delete_attachment
Action Hook: Fires before an attachment is deleted, at the start of wp_delete_attachment().
Source: wp-includes/post.php:6067
delete_blog
Action Hook (deprecated): Fires before a site is deleted.
Source: wp-includes/ms-site.php:250
delete_comment
Action Hook: Fires immediately before a comment is deleted from the database.
Source: wp-includes/comment.php:1476
delete_link
Action Hook: Fires before a link is deleted.
Source: wp-admin/includes/bookmark.php:99
delete_option
Action Hook: Fires immediately before an option is deleted.
Source: wp-includes/option.php:765