Supported Versions: PHP 4, PHP 5, PHP 7, PHP 8
Sort an array by key in descending order
krsort(array &$arrayint $flags SORT_REGULAR): bool
        if (static::isAssoc($array)) {

            
$descending

                    
krsort($array$options)

                    : 
ksort($array$options);

        } else {

            
$descending
    {

        
$items $this->items;



        
$descending krsort($items$options) : ksort($items$options);



        return new static(
$items);

    }