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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 |
|---|---|
| 559 | function get_comment_ID() { |
| 560 | global $comment; |
| 561 | /** |
| 562 | * Filter the returned comment ID. |
| 563 | * |
| 564 | * @since 1.5.0 |
| 565 | * |
| 566 | * @param int $comment_ID The current comment ID. |
| 567 | */ |
| 568 | return apply_filters( 'get_comment_ID', $comment->comment_ID ); |
| 569 | } |
| 570 | |
| 571 | /** |
| 572 | * Display the comment id of the current comment. |
| 573 | * |
| 574 | * @since 0.71 |
| 575 | */ |
| 576 | function comment_ID() { |
| 577 | echo get_comment_ID(); |