How can PHP be used to ensure browsers consistently use updated scripts after changes are made?

When changes are made to scripts in a website, browsers may cache the old versions and not load the updated ones, causing inconsistencies. To ensure browsers consistently use updated scripts, you can append a version number or timestamp to the script URLs. This way, when changes are made, the URL changes, prompting browsers to fetch the updated scripts. 

<?php
$version = '1.0.0'; // Update this version number when changes are made
?>
<script src="script.js?v=<?php echo $version; ?>"></script>

Keywords

PHP browser cache cache busting versioning script updates

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