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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 |
|---|---|
| 3545 | delete_post_meta( $post_id, '_wp_trash_meta_comments_status' ); |
| 3546 | |
| 3547 | /** |
| 3548 | * Fires after comments are restored for a post from the Trash. |
| 3549 | * |
| 3550 | * @since 2.9.0 |
| 3551 | * |
| 3552 | * @param int $post_id Post ID. |
| 3553 | */ |
| 3554 | do_action( 'untrashed_post_comments', $post_id ); |
| 3555 | } |
| 3556 | |
| 3557 | /** |
| 3558 | * Retrieve the list of categories for a post. |
| 3559 | * |
| 3560 | * Compatibility layer for themes and plugins. Also an easy layer of abstraction |
| 3561 | * away from the complexity of the taxonomy layer. |
| 3562 | * |
| 3563 | * @since 2.1.0 |