How can the combination of PHP scripts and session handling impact the display of content and form submission?

When using PHP scripts and session handling, it is important to ensure that sessions are properly started before any content is displayed or form submissions are processed. This can impact the display of content if sessions are not started at the beginning of the script, leading to errors or unexpected behavior. To solve this issue, you should always start sessions at the beginning of your PHP scripts to ensure that session data is available throughout the script execution.

<?php
session_start();

// Your PHP code here for displaying content and processing form submissions
?>