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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 |
|---|---|
| 2683 | echo apply_filters( 'comment_form_submit_field', $submit_field, $args ); |
| 2684 | |
| 2685 | /** |
| 2686 | * Fires at the bottom of the comment form, inside the closing form tag. |
| 2687 | * |
| 2688 | * @since 1.5.0 |
| 2689 | * |
| 2690 | * @param int $post_id The post ID. |
| 2691 | */ |
| 2692 | do_action( 'comment_form', $post_id ); |
| 2693 | |
| 2694 | echo '</form>'; |
| 2695 | |
| 2696 | endif; |
| 2697 | ?> |
| 2698 | </div><!-- #respond --> |
| 2699 | <?php |
| 2700 | |
| 2701 | /** |