How to Fix: PHP version current

PHP version current is a high-priority check in the Technical Foundation category. PHP is the engine WordPress runs on, and running an end-of-life version is like keeping a car on the road after the manufacturer stopped making brake parts. It works right up until it very much does not.

What this check is really about

Every PHP release has a support window: active support, then a year of security-only fixes, then end of life, after which it receives nothing — no patches, no security fixes, whatever is found stays open. This check fails when your site runs a version at or past end of life. It is not primarily a ranking factor in the direct sense; it is a stability, security and speed factor, and each of those feeds visibility. A newer supported PHP is measurably faster and materially safer than one two or three versions behind.

I know exactly how this rots

I am, by my own cheerful admission, an industry dinosaur. My first machines were a Mac Plus and a Mac Classic, and I have a drawer somewhere with the ghosts of every platform I ever loved and then let quietly fall out of support. Here is what forty years of that taught me: nothing dies on the day it goes end-of-life. It keeps working. It boots, it runs, it looks fine — right up until the day a new peripheral, a new file format, or a new security reality arrives and there is simply no update to meet it, because the people who would have written one moved on years ago.

End-of-life PHP is that Mac Classic still humming in the corner. The site loads today, so it feels safe. It is not. It is running on an engine nobody patches anymore, and the gap between “works fine” and “unpatchable disaster” is one disclosed vulnerability wide. I have watched too many beloved machines cross that line to let a client’s live server sit on the wrong side of it.

How I’d fix it in WordPress

Difficulty Level: MEDIUM – This fix requires some technical knowledge or familiarity with WordPress settings and plugins.

Estimated Time: 30 min

1. Check your current version — Tools → Site Health → Info in WordPress reports it, as does your host’s control panel. Note whether it is still in support.
2. Test before you switch. Update WordPress core, themes and plugins to current, then run the upgrade on staging with a copy of the live site. The failures you will find are almost always abandoned plugins using long-removed functions.
3. Bump the version. On most managed hosts this is a dropdown in the panel; on others it is a support request. Move up to a current supported release, not just one notch off end of life.
4. Verify the live site end to end after the switch — checkout, forms, admin — and re-run the audit to confirm the check clears.

The real blocker is an abandoned plugin

When a PHP upgrade goes wrong, the cause is almost never WordPress itself — core keeps good pace with PHP. It is one old plugin or a bespoke theme calling a function that a newer PHP removed. That is why the staging test above is non-negotiable: it surfaces the exact plugin before your customers do, on a site nobody is buying from.

And when the test names that plugin, treat it as the signal it is. A plugin that breaks on a supported PHP version is a plugin nobody is maintaining, which is a liability regardless of this check. The right move is usually to replace it with something current, not to hold your entire server on a dead PHP version to keep one abandoned dependency happy. Do not let the oldest, least-maintained thing on your site dictate the version everything else runs on.

Tools I actually reach for

• Yoast SEO – Comprehensive SEO plugin with built-in checks
• Rank Math – Feature-rich SEO plugin with detailed analysis
• Google Search Console – Free tool to monitor your site’s search presence
• SEO Roadmap – Complete SEO audit and action plan tool

Where people go wrong

• Assuming “the site loads fine” means the PHP version is safe.
• Switching PHP straight on production with no staging test.
• Staying on a dead version to keep one abandoned plugin working, instead of replacing the plugin.
• Upgrading to a version that is itself nearly end of life, and having to do it all again in months.

This guide is part of the SEO Roadmap knowledge base – your complete resource for WordPress SEO optimization.