What are the potential pitfalls of using shuffle() function in PHP for randomizing data sets from an array?

One potential pitfall of using the shuffle() function in PHP is that it directly modifies the original array, which may not be desirable if you need to preserve the original order of the data. To avoid this issue, you can create a copy of the array before shuffling it using the shuffle() function.

$data = [1, 2, 3, 4, 5];
$shuffledData = $data; // Create a copy of the original array
shuffle($shuffledData); // Shuffle the copied array

// Output the shuffled data
print_r($shuffledData);