Why Your Store’s PHP Version Matters (and How to Check It)

Behind every WooCommerce store is software written in PHP. You don’t need to know how it works, but keeping it up-to-date is one of the easiest things you can do to keep your store fast, secure, and running smoothly.

Think of PHP as an engine in a car. Newer engines are more economical and reliable. Older engines still work, but are more difficult to maintain and prone to problems. The same goes for PHP.

PHP is the programming language that powers WordPress and WooCommerce. When a customer visits your store, PHP loads your products behind the scenes, processes orders, and displays your pages.

You don’t interact with PHP directly – your hosting provider manages it for you. However, the version of PHP your website is running can have a real impact on the performance and security of your store.

Security

Older versions of PHP will eventually stop receiving security updates (also known as patches). For example, PHP 7.4 reached “end of life” in November 2022. This means that no security flaws discovered since then have been patched. Running an outdated version is a bit like leaving the back door of your store unlocked.

Speed

PHP 8.1+ is significantly faster than older versions. Faster page loading means a better experience for your customers – and may even improve your search rankings.

Compatibility

As WooCommerce and WordPress continue to evolve, we optimize for newer versions of PHP. Staying up-to-date means you’ll have access to the latest features and fewer compatibility issues.

WordPress makes this easy with a built-in tool called Site Health. Here’s how to find it:

1. Log in to your WordPress dashboard.
2. Go to Tools → Site Status.
3. Click the Information tab.
4. Expand the Server section.
5. Look for the PHP version line.

If you’re running PHP 8.1 or higher, you’re in great shape. If you see PHP 7.4 or 8.0, it’s time to think about upgrading.

What to do if you are using an older version

The good news: upgrading PHP is usually simple and your hosting provider will take care of the technical work. What to do:

1. Contact your host

Most hosting providers offer PHP version control in their dashboard or can upgrade you on request. In your hosting control panel, look for a setting called “PHP Version” or “PHP Selection” or contact their support team.

2. Select the correct version

For the best balance between performance, security and compatibility, we recommend PHP 8.3. PHP 8.2 is also a solid choice. You may notice that PHP 8.3 is newer than PHP 8.2 — so why would anyone choose 8.2? New versions of PHP introduce improvements, but may also include changes that take time for hosting platforms, plugins, and themes to fully adapt. This is why many production sites run a version that is widely tested and validated across the ecosystem, even when a newer version is available.

If you’re wondering what changed between versions, the PHP project publishes detailed release notes for each version.

3. If possible, test first

Some hosts offer live environments where you can test the upgrade before applying it to your live site. This is a good precaution, especially if you use a lot of plugins.

If you’re shopping for a new hosting provider – or evaluating whether your current one still meets your needs – it’s worth checking PHP version support. A good WooCommerce host should:

• Offer PHP 8.2 or 8.3 by default.
• Make it easy to switch PHP versions.
• Keep PHP automatically updated as new versions are released.

You can find our recommended hosts on the WooCommerce hosting page.

Checking your PHP version takes less than a minute and the upgrade is usually just a quick message to your host. It’s one of those small maintenance tasks that pays off in better security, faster performance, and peace of mind.

If you have questions about setting up your store’s server, our support team is happy to point you in the right direction.