Joomla User Manual
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Unsupported PHP Version
Installation Error¶
If you see this when you try and install Joomla 4.x:
Joomla 4 requires PHP 7.2.5 or higher as described in our Technical Requirements.
Updating your PHP Version¶
There are several 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 are 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 does not 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, for example XAMPP