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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 |
|---|---|
| 523 | * Note: If the widget has no form, the text echoed from the default |
| 524 | * form method can be hidden using CSS. |
| 525 | * |
| 526 | * @since 2.8.0 |
| 527 | * |
| 528 | * @param WP_Widget $this The widget instance, passed by reference. |
| 529 | * @param null $return Return null if new fields are added. |
| 530 | * @param array $instance An array of the widget's settings. |
| 531 | */ |
| 532 | do_action_ref_array( 'in_widget_form', array( &$this, &$return, $instance ) ); |
| 533 | } |
| 534 | return $return; |
| 535 | } |
| 536 | |
| 537 | /** |
| 538 | * Registers an instance of the widget class. |
| 539 | * |
| 540 | * @since 2.8.0 |
| 541 | * @access public |