Menu Walker Class

menu-walker-class

class custom_menu_walker extends Walker_Nav_Menu{
    function start_el(&$output, $item, $depth, $args){
        global $wp_query;
        $indent = ( $depth ) ? str_repeat( "t", $depth ) : '';
        $class_names = $value = '';
        $classes = empty( $item->classes ) ? array() : (array) $item->classes;
        $class_names = join( ' ', apply_filters( 'nav_menu_css_class', array_filter( $classes ), $item ) );
        $class_names = ' class="'. esc_attr( $class_names ) . '"';
        $output .= $indent . '<li id="menu-item-'. $item->ID . '"' . $value . $class_names .'>';
        $ancestors = get_ancestors( $item->ID, 'page' );
        $attributes  = ! empty( $item->attr_title ) ? ' title="'  . esc_attr( $item->attr_title ) .'"' : '';
        $attributes .= ! empty( $item->target )     ? ' target="' . esc_attr( $item->target     ) .'"' : '';
        $attributes .= ! empty( $item->xfn )        ? ' rel="'    . esc_attr( $item->xfn        ) .'"' : '';
        $attributes .= ! empty( $item->url )        ? ' href="'   . esc_attr( $item->url        ) .'"' : '';
         $item_output = $args->before;
         $item_output .= '<a'. $attributes .'>';
         $item_output .= $args->link_before .$prepend.apply_filters( 'the_title', $item->title, $item->ID ).$append;
         $item_output .= $args->link_after;
         $item_output .= '</a>';
         $item_output .= $args->after;
         $output .= apply_filters( 'walker_nav_menu_start_el', $item_output, $item, $depth, $args );
    }//end function
}//end  custom menu walker class

How can i use it???

@AhmadRaza9 this code snippet is 10 years old. I doubt it still works with current WordPress versions/themes