What are some potential pitfalls when using array_multisort() in PHP?

One potential pitfall when using array_multisort() in PHP is that it modifies the original arrays passed to it. To avoid this, you can make a copy of the arrays before sorting them. This ensures that the original arrays remain unchanged.

// Create copies of the arrays before sorting
$copyArray1 = $array1;
$copyArray2 = $array2;

// Sort the arrays using array_multisort()
array_multisort($copyArray1, $copyArray2);

// $copyArray1 and $copyArray2 are now sorted, while $array1 and $array2 remain unchanged