Why are doublettes being created in the array if they need to be sorted and removed afterwards?

Doublettes are being created in the array because the code is not checking for duplicates before adding elements. To solve this issue, we can use the `array_unique()` function in PHP to remove duplicates from the array after sorting it.

// Sample array with potential duplicates
$array = [3, 1, 2, 3, 4, 2];

// Sort the array
sort($array);

// Remove duplicates
$array = array_unique($array);

// Output the unique sorted array
print_r($array);