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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 |
|---|---|
| 571 | public function column_default( $comment, $column_name ) { |
| 572 | /** |
| 573 | * Fires when the default column output is displayed for a single row. |
| 574 | * |
| 575 | * @since 2.8.0 |
| 576 | * |
| 577 | * @param string $column_name The custom column's name. |
| 578 | * @param int $comment->comment_ID The custom column's unique ID number. |
| 579 | */ |
| 580 | do_action( 'manage_comments_custom_column', $column_name, $comment->comment_ID ); |
| 581 | } |
| 582 | } |
| 583 | |
| 584 | /** |
| 585 | * Post Comments List Table class. |
| 586 | * |
| 587 | * @package WordPress |
| 588 | * @subpackage List_Table |
| 589 | * @since 3.1.0 |