WP hooks navigation: Home/browse • Actions index • Filters index
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 |
|---|---|
| 490 | isset( $request['form_data'][ "widget-$id" ] ) && |
| 491 | is_array( $request['form_data'][ "widget-$id" ] ) |
| 492 | ) { |
| 493 | $new_instance = array_values( $request['form_data'][ "widget-$id" ] )[0]; |
| 494 | $old_instance = $instance; |
| 495 | |
| 496 | $instance = $widget_object->update( $new_instance, $old_instance ); |
| 497 | |
| 498 | /** This filter is documented in wp-includes/class-wp-widget.php */ |
| 499 | $instance = apply_filters( |
| 500 | 'widget_update_callback', |
| 501 | $instance, |
| 502 | $new_instance, |
| 503 | $old_instance, |
| 504 | $widget_object |
| 505 | ); |
| 506 | } |
| 507 | |
| 508 | $serialized_instance = serialize( $instance ); |