Debian 12 - Install PHP 8.4
The easiest way to install later versions of PHP such as PHP 8.4 is to add Ondrej's repository.
Then you just need to install the PHP version you want. E.g.
Removing Existing PHP
If you had already installed PHP from native packages remove it before installing the later version:
Last updated: 10th March 2025
First published: 30th June 2023
First published: 30th June 2023