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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 |
---|---|
351 | $_POST = array( |
352 | 'sidebar' => $sidebar_id, |
353 | "widget-$id_base" => array(), |
354 | 'the-widget-id' => $widget_id, |
355 | 'delete_widget' => '1', |
356 | ); |
357 | $_REQUEST = $_POST; |
358 |
|
359 | /** This action is documented in wp-admin/widgets-form.php */ |
360 | do_action( 'delete_widget', $widget_id, $sidebar_id, $id_base ); |
361 |
|
362 | $callback = $wp_registered_widget_updates[ $id_base ]['callback']; |
363 | $params = $wp_registered_widget_updates[ $id_base ]['params']; |
364 |
|
365 | if ( is_callable( $callback ) ) { |
366 | ob_start(); |
367 | call_user_func_array( $callback, $params ); |
368 | ob_end_clean(); |
369 | } |