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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 |
|---|---|
| 668 | $comment_excerpt_length = (int) _x( '20', 'comment_excerpt_length' ); |
| 669 | |
| 670 | /** |
| 671 | * Filters the maximum number of words used in the comment excerpt. |
| 672 | * |
| 673 | * @since 4.4.0 |
| 674 | * |
| 675 | * @param int $comment_excerpt_length The amount of words you want to display in the comment excerpt. |
| 676 | */ |
| 677 | $comment_excerpt_length = apply_filters( 'comment_excerpt_length', $comment_excerpt_length ); |
| 678 | |
| 679 | $comment_excerpt = wp_trim_words( $comment_text, $comment_excerpt_length, '…' ); |
| 680 | |
| 681 | /** |
| 682 | * Filters the retrieved comment excerpt. |
| 683 | * |
| 684 | * @since 1.5.0 |
| 685 | * @since 4.1.0 The `$comment_id` and `$comment` parameters were added. |
| 686 | * |