function register_my_widget(){
register_sidebar( array(
    \'name\'          => esc_html__(\'Sidebar\', \'youthemename\'),
    \'id\'            => \'widget-1\',
    \'description\'   => esc_html__(\'My first Widget\', \'youthemename\'),
    \'before_widget\' => \'<div class="widget %2$s">\',
    \'after_widget\'  => \'</div>\',
    \'before_title\'  => \'<h4 class="widget-wtitle">\',
    \'after_title\'   => \'</h4>\'
) );
}
add_action( \'widgets_init\', \'register_my_widget\' );