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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 |
|---|---|
| 639 | $comment_excerpt_length = (int) _x( '20', 'comment_excerpt_length' ); |
| 640 | |
| 641 | /** |
| 642 | * Filters the maximum number of words used in the comment excerpt. |
| 643 | * |
| 644 | * @since 4.4.0 |
| 645 | * |
| 646 | * @param int $comment_excerpt_length The amount of words you want to display in the comment excerpt. |
| 647 | */ |
| 648 | $comment_excerpt_length = apply_filters( 'comment_excerpt_length', $comment_excerpt_length ); |
| 649 | |
| 650 | $excerpt = wp_trim_words( $comment_text, $comment_excerpt_length, '…' ); |
| 651 | |
| 652 | /** |
| 653 | * Filters the retrieved comment excerpt. |
| 654 | * |
| 655 | * @since 1.5.0 |
| 656 | * @since 4.1.0 The `$comment_id` and `$comment` parameters were added. |
| 657 | * |