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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 |
|---|---|
| 3353 | delete_post_meta( $post_id, '_wp_trash_meta_comments_status' ); |
| 3354 | |
| 3355 | /** |
| 3356 | * Fires after comments are restored for a post from the trash. |
| 3357 | * |
| 3358 | * @since 2.9.0 |
| 3359 | * |
| 3360 | * @param int $post_id Post ID. |
| 3361 | */ |
| 3362 | do_action( 'untrashed_post_comments', $post_id ); |
| 3363 | } |
| 3364 | |
| 3365 | /** |
| 3366 | * Retrieve the list of categories for a post. |
| 3367 | * |
| 3368 | * Compatibility layer for themes and plugins. Also an easy layer of abstraction |
| 3369 | * away from the complexity of the taxonomy layer. |
| 3370 | * |
| 3371 | * @since 2.1.0 |