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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 |
|---|---|
| 1589 | /** |
| 1590 | * Fires immediately before a comment is restored from the Trash. |
| 1591 | * |
| 1592 | * @since 2.9.0 |
| 1593 | * @since 4.9.0 Added the `$comment` parameter. |
| 1594 | * |
| 1595 | * @param string $comment_id The comment ID as a numeric string. |
| 1596 | * @param WP_Comment $comment The comment to be untrashed. |
| 1597 | */ |
| 1598 | do_action( 'untrash_comment', $comment->comment_ID, $comment ); |
| 1599 | |
| 1600 | $status = (string) get_comment_meta( $comment->comment_ID, '_wp_trash_meta_status', true ); |
| 1601 | if ( empty( $status ) ) { |
| 1602 | $status = '0'; |
| 1603 | } |
| 1604 | |
| 1605 | if ( wp_set_comment_status( $comment, $status ) ) { |
| 1606 | delete_comment_meta( $comment->comment_ID, '_wp_trash_meta_time' ); |
| 1607 | delete_comment_meta( $comment->comment_ID, '_wp_trash_meta_status' ); |