What are some common methods to prevent outdated data from being displayed in PHP applications due to browser caching?

Browser caching can cause outdated data to be displayed in PHP applications. To prevent this, you can add cache control headers to your PHP scripts to instruct the browser not to cache the data. This can be done by setting headers like "Cache-Control: no-cache, no-store, must-revalidate" and "Pragma: no-cache" in your PHP code. 

<?php
// Prevent browser caching
header("Cache-Control: no-cache, no-store, must-revalidate");
header("Pragma: no-cache");
header("Expires: 0");
?>

Keywords

PHP browser caching cache control headers timestamp

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