How can .htaccess files impact PHP server functionality?

.htaccess files can impact PHP server functionality by controlling various server configurations such as URL rewriting, access control, and error handling. If not configured correctly, .htaccess rules can interfere with PHP scripts, causing unexpected behavior or errors. To ensure smooth PHP server functionality, it is important to review and test .htaccess rules carefully.

// Example of a simple PHP script that may be affected by .htaccess rules
<?php
echo "Hello, World!";
?>