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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 |
|---|---|
| 1700 | |
| 1701 | /** |
| 1702 | * Fires immediately after a comment is inserted into the database. |
| 1703 | * |
| 1704 | * @since 1.2.0 |
| 1705 | * |
| 1706 | * @param int $comment_ID The comment ID. |
| 1707 | * @param int $comment_approved 1 (true) if the comment is approved, 0 (false) if not. |
| 1708 | */ |
| 1709 | do_action( 'comment_post', $comment_ID, $commentdata['comment_approved'] ); |
| 1710 | |
| 1711 | if ( 'spam' !== $commentdata['comment_approved'] ) { // If it's spam save it silently for later crunching |
| 1712 | if ( '0' == $commentdata['comment_approved'] ) { |
| 1713 | wp_notify_moderator( $comment_ID ); |
| 1714 | } |
| 1715 | |
| 1716 | // wp_notify_postauthor() checks if notifying the author of their own comment. |
| 1717 | // By default, it won't, but filters can override this. |
| 1718 | if ( get_option( 'comments_notify' ) && $commentdata['comment_approved'] ) { |