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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 |
---|---|
648 | /** |
649 | * Filters the comment excerpt for display. |
650 | * |
651 | * @since 1.2.0 |
652 | * @since 4.1.0 The `$comment_ID` parameter was added. |
653 | * |
654 | * @param string $comment_excerpt The comment excerpt text. |
655 | * @param int $comment_ID The comment ID. |
656 | */ |
657 | echo apply_filters( 'comment_excerpt', $comment_excerpt, $comment->comment_ID ); |
658 | } |
659 |
|
660 | /** |
661 | * Retrieves the comment ID of the current comment. |
662 | * |
663 | * @since 1.5.0 |
664 | * |
665 | * @return int The comment ID. |
666 | */ |