List catagories order by Random

I'm not good with PHP.

I use "Advanced Categories Widget" to list categories on Sidebar.

I used this plugin beacause it offers the ability to display images categories.

But I need to order categories by random.

I find this code on the plugin :

function advanced_categories_widget_html( $args = array() ) {
    $args = wp_parse_args( $args );
    $args['walker'] = new Walker_Advance_Category_Widget;
    $output = wp_list_categories( $args );
    if ( $output ) return $output;
}

and i Find another code on forum which displays correctly categories by random order

via Chebli Mohamed