function WP_Widget::widget() must be over-ridden in a sub-class. when create new Widget

Question

Show: function WP_Widget::widget() must be over-ridden in a sub-class. in website.

How to fix it?

Answer 1

The class that extends WP_Widget must have a widget method. That is:

class Dummy_Widget extends WP_Widget {

  /* This method is required */
  function widget($args, $instance) {

  }

}