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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 |
---|---|
608 | /** |
609 | * Filter the returned comment ID. |
610 | * |
611 | * @since 1.5.0 |
612 | * @since 4.1.0 The `$comment_ID` parameter was added. |
613 | * |
614 | * @param int $comment_ID The current comment ID. |
615 | * @param object $comment The comment object. |
616 | */ |
617 | return apply_filters( 'get_comment_ID', $comment->comment_ID, $comment ); |
618 | } |
619 |
|
620 | /** |
621 | * Display the comment id of the current comment. |
622 | * |
623 | * @since 0.71 |
624 | */ |
625 | function comment_ID() { |
626 | echo get_comment_ID(); |