What are some best practices for efficiently working with arrays in PHP to avoid nested loops?

When working with arrays in PHP, one way to avoid using nested loops is to leverage built-in array functions like array_map, array_filter, and array_reduce. These functions allow you to perform operations on arrays without the need for nested loops, resulting in cleaner and more efficient code.

// Example of using array_map to efficiently work with arrays without nested loops
$numbers = [1, 2, 3, 4, 5];

// Double each number in the array
$doubledNumbers = array_map(function($num) {
    return $num * 2;
}, $numbers);

print_r($doubledNumbers);