What are some alternative methods to efficiently loop through an array and perform actions on subsets of data in PHP?

When looping through an array in PHP and performing actions on subsets of data, one efficient method is to use array functions like array_map or array_filter along with anonymous functions or closures. These functions allow you to loop through the array and apply a specific action or filter to each element in a concise and readable way.

// Example of using array_map to perform an action on each element of an array
$data = [1, 2, 3, 4, 5];
$result = array_map(function($item) {
    return $item * 2;
}, $data);

print_r($result);