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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 |
|---|---|
| 1089 | public function column_default( $item, $column_name ) { |
| 1090 | /** |
| 1091 | * Fires when the default column output is displayed for a single row. |
| 1092 | * |
| 1093 | * @since 2.8.0 |
| 1094 | * |
| 1095 | * @param string $column_name The custom column's name. |
| 1096 | * @param string $comment_id The comment ID as a numeric string. |
| 1097 | */ |
| 1098 | do_action( 'manage_comments_custom_column', $column_name, $item->comment_ID ); |
| 1099 | } |
| 1100 | } |
| 1101 | |