J4.x

Unsupported PHP Version

From Joomla! Documentation

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If you see this when you try and install Joomla 4.x

J4 Unsupported PHP Version en.png

Joomla 4 requires PHP 7.2.5 or higher as per our technical requirements page.

Updating your PHP Version

There's a variety of ways to update your PHP version. The main ones are covered in an article in the September 2020 issue of Joomla Community Magazine: How do I update my PHP version?.

If you're using CPanel or Plesk there should be an option to upgrade php in your dashboard. If there is no option or you are unsure about how to achieve this contact your host. Using modern PHP Versions is essential for keeping your site secure. If your host doesn't offer a version above 7.2.5 then you may want to consider alternative hosting!

If you're developing locally then you need to download an updated version of the local hosting tool you are using eg XAMPP