What could be causing the issue of the page not being displayed after clicking the back button in a PHP script?

The issue of the page not being displayed after clicking the back button in a PHP script could be caused by browser caching. To solve this issue, you can add a meta tag to disable caching in the HTML header of your PHP script. 

<?php
// Add this meta tag to disable caching
header("Cache-Control: no-cache, must-revalidate");
header("Expires: Sat, 26 Jul 1997 05:00:00 GMT");
?>

Keywords

PHP back button page display script error.

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