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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 |
|---|---|
| 1466 | /** |
| 1467 | * Fires immediately before a comment is restored from the Trash. |
| 1468 | * |
| 1469 | * @since 2.9.0 |
| 1470 | * @since 4.9.0 Added the `$comment` parameter. |
| 1471 | * |
| 1472 | * @param int $comment_id The comment ID. |
| 1473 | * @param WP_Comment $comment The comment to be untrashed. |
| 1474 | */ |
| 1475 | do_action( 'untrash_comment', $comment->comment_ID, $comment ); |
| 1476 | |
| 1477 | $status = (string) get_comment_meta( $comment->comment_ID, '_wp_trash_meta_status', true ); |
| 1478 | if ( empty( $status ) ) { |
| 1479 | $status = '0'; |
| 1480 | } |
| 1481 | |
| 1482 | if ( wp_set_comment_status( $comment, $status ) ) { |
| 1483 | delete_comment_meta( $comment->comment_ID, '_wp_trash_meta_time' ); |
| 1484 | delete_comment_meta( $comment->comment_ID, '_wp_trash_meta_status' ); |