What are the potential pitfalls of using special characters like the sharp "S" in sorting algorithms in PHP?

Using special characters like the sharp "S" in sorting algorithms in PHP can lead to unexpected behavior or errors because PHP's sorting functions may not handle special characters correctly. To avoid this issue, it's recommended to use PHP's built-in sorting functions that are designed to handle various characters and sorting requirements.

// Example of sorting an array of strings with special characters using PHP's built-in sorting function
$strings = ["Süßigkeiten", "Schön", "Schatz", "Saft"];
sort($strings, SORT_LOCALE_STRING);
print_r($strings);