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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 |
|---|---|
| 709 | public function column_default( $comment, $column_name ) { |
| 710 | /** |
| 711 | * Fires when the default column output is displayed for a single row. |
| 712 | * |
| 713 | * @since 2.8.0 |
| 714 | * |
| 715 | * @param string $column_name The custom column's name. |
| 716 | * @param int $comment->comment_ID The custom column's unique ID number. |
| 717 | */ |
| 718 | do_action( 'manage_comments_custom_column', $column_name, $comment->comment_ID ); |
| 719 | } |
| 720 | } |
| 721 | |
| 722 | /** |
| 723 | * Post Comments List Table class. |
| 724 | * |
| 725 | * @package WordPress |
| 726 | * @subpackage List_Table |
| 727 | * @since 3.1.0 |