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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 |
|---|---|
| 1485 | /** |
| 1486 | * Filter the returned comment id fields. |
| 1487 | * |
| 1488 | * @since 3.0.0 |
| 1489 | * |
| 1490 | * @param string $result The HTML-formatted hidden id field comment elements. |
| 1491 | * @param int $id The post ID. |
| 1492 | * @param int $replytoid The id of the comment being replied to. |
| 1493 | */ |
| 1494 | return apply_filters( 'comment_id_fields', $result, $id, $replytoid ); |
| 1495 | } |
| 1496 | |
| 1497 | /** |
| 1498 | * Output hidden input HTML for replying to comments. |
| 1499 | * |
| 1500 | * @since 2.7.0 |
| 1501 | * |
| 1502 | * @param int $id Optional. Post ID. Default current post ID. |
| 1503 | */ |