Are there any best practices for obfuscating HTML source code to deter unauthorized access?

To obfuscate HTML source code and deter unauthorized access, one common practice is to minify the code by removing unnecessary spaces, line breaks, and comments. Another approach is to use tools like HTML obfuscators that encode the code to make it harder to read and understand.

<?php
$html = "<html><head><title>Obfuscated HTML</title></head><body><h1>Hello, world!</h1></body></html>";
$minified_html = preg_replace('/\s+/', ' ', $html);
echo $minified_html;
?>