How can browser cache affect the display of websites like php.net and what steps can be taken to resolve this issue?

Browser cache can affect the display of websites like php.net by storing outdated versions of files, leading to inconsistencies in the website's appearance. To resolve this issue, you can add cache-control headers to your PHP files to instruct the browser to always fetch the latest version of the file. 

<?php
header("Cache-Control: no-cache, must-revalidate"); // HTTP/1.1
header("Expires: Sat, 26 Jul 1997 05:00:00 GMT"); // Date in the past
?>

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browser cache website display php.net resolve steps

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