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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 |
|---|---|
| 2455 | if ( 'comment' === $name ) { |
| 2456 | |
| 2457 | /** |
| 2458 | * Filters the content of the comment textarea field for display. |
| 2459 | * |
| 2460 | * @since 3.0.0 |
| 2461 | * |
| 2462 | * @param string $args_comment_field The content of the comment textarea field. |
| 2463 | */ |
| 2464 | echo apply_filters( 'comment_form_field_comment', $field ); |
| 2465 | |
| 2466 | echo $args['comment_notes_after']; |
| 2467 | |
| 2468 | } elseif ( ! is_user_logged_in() ) { |
| 2469 | |
| 2470 | if ( $first_field === $name ) { |
| 2471 | /** |
| 2472 | * Fires before the comment fields in the comment form, excluding the textarea. |
| 2473 | * |