Custom widgets allow developers to create reusable content blocks. By extending the WP_Widget
class, developers can define widget settings, form fields, and display output.
class Custom_Widget extends WP_Widget {
function __construct() {
parent::__construct('custom_widget', __('Custom Widget'));
}
public function widget($args, $instance) {
echo $args['before_widget'] . 'Hello, World!' . $args['after_widget'];
}
}
add_action('widgets_init', function() {
register_widget('Custom_Widget');
});