How can the array_multisort() function be used effectively in PHP?

The array_multisort() function in PHP can be used effectively to sort multiple arrays or a multi-dimensional array based on one or more key values. This function is useful when you need to sort arrays based on different criteria simultaneously.

// Example of using array_multisort() to sort multiple arrays based on one of them
$names = array("John", "Alice", "Bob");
$ages = array(25, 30, 20);

array_multisort($ages, $names);

// Output sorted arrays
print_r($names);
print_r($ages);