How does the mb_convert_case function in PHP handle special characters or names like "Ursula von der Leyen" when converting the first letter of each word to uppercase?

When using the mb_convert_case function in PHP to convert the first letter of each word to uppercase, special characters or names like "Ursula von der Leyen" may not be capitalized correctly. This is because the function may not recognize certain characters as word boundaries. To solve this issue, we can use the ucwords function in combination with mb_convert_case to properly capitalize each word, including special characters or names.

$name = "Ursula von der Leyen";
$capitalizedName = mb_convert_case(ucwords($name), MB_CASE_TITLE, "UTF-8");

echo $capitalizedName;