What is the BOM in PHP files and how can it cause issues with headers?

The BOM (Byte Order Mark) is a special character sequence at the beginning of a file that can cause issues with headers in PHP files. To solve this issue, you can remove the BOM from the PHP files by saving them with UTF-8 encoding without BOM. 

<?php
ob_start();
header('Content-Type: text/html; charset=utf-8');

Keywords

BOM PHP files headers encoding issues

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