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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )
apply_filters( "hook_name", "what_to_filter" )
.Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
Line | Code |
---|---|
3827 | delete_post_meta( $post_id, '_wp_trash_meta_comments_status' ); |
3828 |
|
3829 | /** |
3830 | * Fires after comments are restored for a post from the Trash. |
3831 | * |
3832 | * @since 2.9.0 |
3833 | * |
3834 | * @param int $post_id Post ID. |
3835 | */ |
3836 | do_action( 'untrashed_post_comments', $post_id ); |
3837 | } |
3838 |
|
3839 | /** |
3840 | * Retrieves the list of categories for a post. |
3841 | * |
3842 | * Compatibility layer for themes and plugins. Also an easy layer of abstraction |
3843 | * away from the complexity of the taxonomy layer. |
3844 | * |
3845 | * @since 2.1.0 |