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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 |
---|---|
1581 | * Fires when the comment status is in transition from one specific status to another. |
1582 | * |
1583 | * The dynamic portions of the hook name, `$old_status`, and `$new_status`, |
1584 | * refer to the old and new comment statuses, respectively. |
1585 | * |
1586 | * @since 2.7.0 |
1587 | * |
1588 | * @param WP_Comment $comment Comment object. |
1589 | */ |
1590 | do_action( "comment_{$old_status}_to_{$new_status}", $comment ); |
1591 | } |
1592 | /** |
1593 | * Fires when the status of a specific comment type is in transition. |
1594 | * |
1595 | * The dynamic portions of the hook name, `$new_status`, and `$comment->comment_type`, |
1596 | * refer to the new comment status, and the type of comment, respectively. |
1597 | * |
1598 | * Typical comment types include an empty string (standard comment), 'pingback', |
1599 | * or 'trackback'. |