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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 |
|---|---|
| 2884 | echo apply_filters( 'comment_form_submit_field', $submit_field, $args ); |
| 2885 | |
| 2886 | /** |
| 2887 | * Fires at the bottom of the comment form, inside the closing form tag. |
| 2888 | * |
| 2889 | * @since 1.5.0 |
| 2890 | * |
| 2891 | * @param int $post_id The post ID. |
| 2892 | */ |
| 2893 | do_action( 'comment_form', $post_id ); |
| 2894 | |
| 2895 | echo '</form>'; |
| 2896 | |
| 2897 | endif; |
| 2898 | ?> |
| 2899 | </div><!-- #respond --> |
| 2900 | <?php |
| 2901 | |
| 2902 | /** |