child-functions.php

<?php
    class awempire extends WP_Widget {

        public function __construct() {
            // Instantiate the parent object
            parent::__construct(
                'awempire',
                'SD8 AWEmpire',
                array(
                    'description' => 'AWEmpire ads'
                )
            );
        }

        public function widget( $args, $instance ) {

            echo $args['before_widget'];
            echo '<p>This is some text in a widget which won\'t show if WPML is activated.</p>';
            echo $args['after_widget'];
        }
    }

    function my_theme_enqueue_styles() {
        wp_enqueue_style( 'parent-style', get_template_directory_uri() . '/style.css' );
    }
    add_action( 'wp_enqueue_scripts', 'my_theme_enqueue_styles' );

    function sd_register_widgets() {
        register_widget( 'awempire' );
    }
    add_action( 'widgets_init', 'sd_register_widgets' );