function form($instance) { parent::form($instance); $show_cart_icon = empty($instance['show_cart_icon']) ? 0 : 1; ?> <p><input type="checkbox" class="checkbox" id="<?php echo esc_attr($this->get_field_id('show_cart_icon')); ?> " name="<?php echo esc_attr($this->get_field_name('show_cart_icon')); ?> "<?php checked($show_cart_icon); ?> /> <label for="<?php echo $this->get_field_id('show_cart_icon'); ?> "><?php _e('Display cart icon', 'woocommerce'); ?> </label></p> <?php }