How can header already sent errors be prevented when including links in PHP-generated content?

When including links in PHP-generated content, header already sent errors can be prevented by ensuring that no output is sent to the browser before sending headers. This can be achieved by using output buffering functions like ob_start() and ob_end_flush() to capture the output and prevent it from being sent prematurely. 

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

// Your PHP code here

ob_end_flush(); // Flush the output buffer and send it to the browser
?>

Keywords

header output buffering ob_start ob_end_flush ob_clean

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