Is there a difference in how Umlauts are processed in the "savetxt()" function compared to the "savecomment()" function in the provided PHP code?

When processing Umlauts (special characters like ä, ö, ü) in PHP, it is important to ensure that the correct character encoding is used to avoid any issues with displaying or saving these characters. In the provided PHP code, the issue may arise from how the character encoding is handled differently in the "savetxt()" function compared to the "savecomment()" function. To solve this issue, make sure to use the same character encoding (such as UTF-8) consistently throughout the code.

// Set the character encoding to UTF-8
header('Content-Type: text/html; charset=utf-8');

// Function to save text to a file
function savetxt($text) {
    $text = mb_convert_encoding($text, 'UTF-8');
    file_put_contents('text.txt', $text);
}

// Function to save comments to a file
function savecomment($comment) {
    $comment = mb_convert_encoding($comment, 'UTF-8');
    file_put_contents('comments.txt', $comment);
}