How can the UTF-8 byte-order-mark be added to the header to address encoding problems in PHP?

When dealing with encoding problems in PHP, adding the UTF-8 byte-order-mark (BOM) to the header can help ensure that the correct encoding is used. This can be done by including the BOM sequence at the beginning of the PHP file to indicate that the text is encoded in UTF-8. This can help prevent encoding issues when processing or displaying text in PHP.

<?php
header('Content-Type: text/html; charset=utf-8');
echo "\xEF\xBB\xBF"; // UTF-8 BOM
// Rest of your PHP code here
?>