What is the significance of saving a PHP script as "UTF-8 with BOM" in relation to the header error?

Saving a PHP script as "UTF-8 with BOM" can cause a header error in PHP due to the Byte Order Mark (BOM) characters at the beginning of the file. To solve this issue, you should save the PHP script as "UTF-8 without BOM" to ensure that the BOM characters are not included in the file.

<?php
// Ensure the PHP script is saved as "UTF-8 without BOM" to prevent header errors