OPcache overview

In the world of web sites, speed is everything. A fast-loading website not only enhances user experience but also improves SEO ranking. One of the most effective ways to supercharge your PHP-based website is by enabling OPcache.

What is OPcache?

OPcache is a powerful caching engine that comes built into PHP. When enabled, it significantly boosts the performance of your website by storing precompiled script bytecode in shared memory. PHP no longer has to load and parse scripts on every request, leading to faster execution times and more efficient use of server resources.

According to the official PHP documentation:

“OPcache improves PHP performance by storing precompiled script bytecode in shared memory, thereby removing the need for PHP to load and parse scripts on each request.”

In simpler terms, OPcache saves your server from repeatedly doing the same work, speeding up your website for end-user.

How to Enable OPcache

The great news is that OPcache is typically enabled by default on WordPress hosting platforms like UxNitro. Simply install W3 Cache plugin and verify if active. Check Out video!

Check If OPcache is Active in Browser

Enabling OPcache is only half the battle; you also need to ensure it’s working correctly. There are two main ways to check this:

Using a phpinfo.php File:

• Create a phpinfo.php file in your server’s root directory.

Add the following code to the file

<?php phpinfo(); ?>

• Upload this file to your server and navigate to it via your browser. If OPcache is enabled, you’ll see it listed in the output.

Runtime configuration options

View for a list of available runtime configurations for PHP Opcache.

• php.net/manual/en/opcache.configuration.php