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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 |
|---|---|
| 422 | /** |
| 423 | * Fires after the Filter submit button for comment types. |
| 424 | * |
| 425 | * @since 2.5.0 |
| 426 | * @since 5.6.0 The `$which` parameter was added. |
| 427 | * |
| 428 | * @param string $comment_status The comment status name. Default 'All'. |
| 429 | * @param string $which The location of the extra table nav markup: 'top' or 'bottom'. |
| 430 | */ |
| 431 | do_action( 'manage_comments_nav', $comment_status, $which ); |
| 432 | |
| 433 | echo '</div>'; |
| 434 | } |
| 435 | |
| 436 | /** |
| 437 | * @return string|false |
| 438 | */ |
| 439 | public function current_action() { |
| 440 | if ( isset( $_REQUEST['delete_all'] ) || isset( $_REQUEST['delete_all2'] ) ) { |