What are the potential consequences of ignoring HTML validation errors caused by PHP functions like "session.use_trans_sid"?

Ignoring HTML validation errors caused by PHP functions like "session.use_trans_sid" can lead to security vulnerabilities and potential issues with browser compatibility. It is important to address these validation errors to ensure that your website functions correctly and securely.

<?php
// Set session.use_trans_sid to false to prevent HTML validation errors
ini_set('session.use_trans_sid', false);
?>