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To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).
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 |
|---|---|
| 488 | * Note: If the widget has no form, the text echoed from the default |
| 489 | * form method can be hidden using CSS. |
| 490 | * |
| 491 | * @since 2.8.0 |
| 492 | * |
| 493 | * @param WP_Widget $this The widget instance, passed by reference. |
| 494 | * @param null $return Return null if new fields are added. |
| 495 | * @param array $instance An array of the widget's settings. |
| 496 | */ |
| 497 | do_action_ref_array( 'in_widget_form', array( &$this, &$return, $instance ) ); |
| 498 | } |
| 499 | return $return; |
| 500 | } |
| 501 | |
| 502 | /** |
| 503 | * Register an instance of the widget class. |
| 504 | * |
| 505 | * @since 2.8.0 |
| 506 | * @access private |