widget_update_callback

过滤钩子


apply_filters( 'widget_update_callback', $instance, $new_instance, $old_instance, $this )
参数
  • (array)
    $instance
    The current widget instance’s settings.
    Required: 是
  • (array)
    $new_instance
    Array of new widget settings.
    Required: 是
  • (array)
    $old_instance
    Array of old widget settings.
    Required: 是
  • (WP_Widget)
    $widget
    The current widget instance.
    Required: 是
定义位置
  • wp-includes/class-wp-widget.php
    , line 476
引入
2.8.0
弃用
–

Filters a widget’s settings before saving.

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

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