PHP is the language WordPress runs on. Security Ninja requires PHP 7.4 or newer. Prefer a current PHP 8.x release that your host still supports with security updates.
Many hosts default to PHP 8 already. Sites stuck on PHP 7.4 or older miss patches and often run slower.
Why PHP 8 matters
- Security. Older PHP branches stop receiving security fixes. Running them leaves known holes open.
- Speed. PHP 8 typically runs WordPress faster than PHP 7.
- Compatibility. Current plugins and themes target PHP 8. Staying on old PHP blocks updates.
Check your PHP version in hosting control panels, or in WordPress under Tools → Site Health (when available).
That screenshot is from September 2019 and is only historical. Use your host’s current PHP list, or php.net supported versions.
Ask your host or developer to move the site to a supported PHP 8 release. Test plugins and themes on staging first when you can.
Before you switch, confirm critical plugins and the active theme list PHP 8 as compatible.
