How can one improve the code provided to make it more efficient and modern in terms of PHP standards?

The provided code can be improved by using modern PHP standards such as type declarations, null coalescing operator, and the use of the spaceship operator for sorting. By incorporating these features, the code will be more efficient and easier to read. 

function sortArray(array $arr): array
{
    usort($arr, fn($a, $b) => $a <=> $b);
    return $arr;
}

$numbers = [3, 1, 4, 1, 5, 9, 2, 6, 5, 3, 5];
$sortedNumbers = sortArray($numbers);
print_r($sortedNumbers);

Keywords

OOP PHP7 PSR-12 Composer Code optimization

Related Questions