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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 |
---|---|
3599 | } |
3600 |
|
3601 | /** |
3602 | * Fires before comments are restored for a post from the Trash. |
3603 | * |
3604 | * @since 2.9.0 |
3605 | * |
3606 | * @param int $post_id Post ID. |
3607 | */ |
3608 | do_action( 'untrash_post_comments', $post_id ); |
3609 |
|
3610 | // Restore each comment to its original status. |
3611 | $group_by_status = array(); |
3612 | foreach ( $statuses as $comment_id => $comment_status ) { |
3613 | $group_by_status[ $comment_status ][] = $comment_id; |
3614 | } |
3615 |
|
3616 | foreach ( $group_by_status as $status => $comments ) { |
3617 | // Sanity check. This shouldn't happen. |