What are the potential pitfalls of not structuring arrays properly before sorting them in PHP?

If arrays are not structured properly before sorting them in PHP, it can lead to unexpected results or errors in the sorting process. To avoid this, make sure the array elements are of the same data type and are in the correct order for the desired sorting method.

// Example of properly structuring an array before sorting
$array = [3, 1, 5, 2, 4]; // unsorted array
sort($array); // sort the array in ascending order
print_r($array); // output: Array ( [0] => 1 [1] => 2 [2] => 3 [3] => 4 [4] => 5 )