How can output buffering with ob_start be used to prevent white background flashes in PHP scripts?

When a PHP script generates output, it is sent to the browser in pieces, which can sometimes result in a white background flash as the page loads. To prevent this, output buffering can be used with ob_start to capture all output before sending it to the browser. This allows you to modify the content or headers before they are sent, preventing any flashing or unwanted content from being displayed. 

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

// Your PHP script content here

ob_end_flush(); // Send the output to the browser
?>

Keywords

output buffering ob_start white background flashes PHP scripts

Related Questions