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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 |
|---|---|
| 2472 | if ( ! $post || ! comments_open( $post ) ) { |
| 2473 | /** |
| 2474 | * Fires after the comment form if comments are closed. |
| 2475 | * |
| 2476 | * For backward compatibility, this action also fires if comment_form() |
| 2477 | * is called with an invalid post object or ID. |
| 2478 | * |
| 2479 | * @since 3.0.0 |
| 2480 | */ |
| 2481 | do_action( 'comment_form_comments_closed' ); |
| 2482 | |
| 2483 | return; |
| 2484 | } |
| 2485 | |
| 2486 | $post_id = $post->ID; |
| 2487 | $commenter = wp_get_current_commenter(); |
| 2488 | $user = wp_get_current_user(); |
| 2489 | $user_identity = $user->exists() ? $user->display_name : ''; |
| 2490 | |