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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 |
---|---|
506 | function comment_excerpt( $comment_ID = 0 ) { |
507 | $comment_excerpt = get_comment_excerpt($comment_ID); |
508 | /** |
509 | * Filter the comment excerpt for display. |
510 | * |
511 | * @since 1.2.1 |
512 | * |
513 | * @param string $comment_excerpt The comment excerpt text. |
514 | */ |
515 | echo apply_filters( 'comment_excerpt', $comment_excerpt ); |
516 | } |
517 |
|
518 | /** |
519 | * Retrieve the comment id of the current comment. |
520 | * |
521 | * @since 1.5.0 |
522 | * |
523 | * @return int The comment ID. |
524 | */ |