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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 |
|---|---|
| 696 | /** |
| 697 | * Filters the comment excerpt for display. |
| 698 | * |
| 699 | * @since 1.2.0 |
| 700 | * @since 4.1.0 The `$comment_id` parameter was added. |
| 701 | * |
| 702 | * @param string $comment_excerpt The comment excerpt text. |
| 703 | * @param string $comment_id The comment ID as a numeric string. |
| 704 | */ |
| 705 | echo apply_filters( 'comment_excerpt', $comment_excerpt, $comment->comment_ID ); |
| 706 | } |
| 707 | |
| 708 | /** |
| 709 | * Retrieves the comment ID of the current comment. |
| 710 | * |
| 711 | * @since 1.5.0 |
| 712 | * |
| 713 | * @return string The comment ID as a numeric string. |
| 714 | */ |