Preventing Browser Caching for Assets in PHP-Generated Pages
Caching plays a crucial role in improving website performance. However, it can sometimes lead to outdated assets being loaded in browsers, making it challenging to deploy updates. When serving pages in PHP, you may encounter situations where the browser refuses to load new CSS, JS, or image files due to caching.
Solution:
To overcome this issue, PHP provides a way to send HTTP response headers that explicitly instruct the browser not to cache the content. By implementing the following code at the beginning of your PHP pages:
<?php header("Cache-Control: no-store, no-cache, must-revalidate, max-age=0"); header("Cache-Control: post-check=0, pre-check=0", false); header("Pragma: no-cache"); ?>
you can prevent the browser from caching the assets associated with that page. This will force the browser to always download the latest versions of the required CSS, JS, and image files, ensuring that your updates are immediately visible to visitors.
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