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widget_update_callback › WordPress过滤钩子

Since2.8.0
已弃用n/a
› apply_filters( 'widget_update_callback', $instance, $new_instance, $old_instance, $this )
参数: (4)
  • (array) $instance The current widget instance's settings.
    Required: Yes
  • (array) $new_instance Array of new widget settings.
    Required: Yes
  • (array) $old_instance Array of old widget settings.
    Required: Yes
  • (WP_Widget) $widget The current widget instance.
    Required: Yes
定义在:
文档:

Filters a widget's settings before saving.

Returning false will effectively short-circuit the widget's ability to update settings.



Related Functions: _register_widget_update_callback, wp_get_update_data, _sort_uname_callback, wp_rel_callback, _sort_name_callback, _register_widget_form_callback


Related Hooks: widget_display_callback, widget_form_callback, wp_get_update_data, widget_pages_args, get_date_sql

源码 

$instance = apply_filters( 'widget_update_callback', $instance, $new_instance, $old_instance, $this );