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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 |
|---|---|
| 2375 | echo apply_filters( 'comment_form_submit_field', $submit_field, $args ); |
| 2376 | |
| 2377 | /** |
| 2378 | * Fires at the bottom of the comment form, inside the closing </form> tag. |
| 2379 | * |
| 2380 | * @since 1.5.0 |
| 2381 | * |
| 2382 | * @param int $post_id The post ID. |
| 2383 | */ |
| 2384 | do_action( 'comment_form', $post_id ); |
| 2385 | ?> |
| 2386 | </form> |
| 2387 | <?php endif; ?> |
| 2388 | </div><!-- #respond --> |
| 2389 | <?php |
| 2390 | /** |
| 2391 | * Fires after the comment form. |
| 2392 | * |
| 2393 | * @since 3.0.0 |