How can output buffering be utilized in PHP to prevent header modification errors when redirecting users?

When redirecting users in PHP, header modification errors can occur if headers have already been sent to the browser. To prevent this issue, you can use output buffering to capture the output before it is sent to the browser, allowing you to modify headers without any errors.

<?php
ob_start(); // Start output buffering

// Your code here

ob_end_clean(); // Clean (erase) the output buffer without sending it to the browser

// Perform header redirection without any errors
header("Location: newpage.php");
exit();
?>