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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 |
---|---|
513 | function comment_excerpt( $comment_ID = 0 ) { |
514 | $comment_excerpt = get_comment_excerpt($comment_ID); |
515 | /** |
516 | * Filter the comment excerpt for display. |
517 | * |
518 | * @since 1.2.0 |
519 | * |
520 | * @param string $comment_excerpt The comment excerpt text. |
521 | */ |
522 | echo apply_filters( 'comment_excerpt', $comment_excerpt ); |
523 | } |
524 |
|
525 | /** |
526 | * Retrieve the comment id of the current comment. |
527 | * |
528 | * @since 1.5.0 |
529 | * |
530 | * @return int The comment ID. |
531 | */ |