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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 |
|---|---|
| 532 | function get_comment_ID() { |
| 533 | global $comment; |
| 534 | /** |
| 535 | * Filter the returned comment ID. |
| 536 | * |
| 537 | * @since 1.5.0 |
| 538 | * |
| 539 | * @param int $comment->comment_ID The current comment ID. |
| 540 | */ |
| 541 | return apply_filters( 'get_comment_ID', $comment->comment_ID ); |
| 542 | } |
| 543 | |
| 544 | /** |
| 545 | * Display the comment id of the current comment. |
| 546 | * |
| 547 | * @since 0.71 |
| 548 | */ |
| 549 | function comment_ID() { |
| 550 | echo get_comment_ID(); |