What are some best practices for handling form submissions in PHP to avoid header modification warnings?

When handling form submissions in PHP, it is important to avoid modifying headers after they have already been sent. To prevent header modification warnings, you can use the output buffering technique to capture any output before headers are sent. This way, you can safely modify headers without encountering any errors. 

<?php
ob_start();

// Your form submission handling code here

ob_end_flush();
?>

Keywords

header modification warnings form submissions PHP

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