I followed many instructions, but none worked. However, here’s the solution:

Open the following file in a text editor:

bash

nano /etc/apt/sources.list.d/php.list

Comment out the first line and add the second one:

bash

#deb https://packages.sury.org/php/ beige main
deb https://packages.sury.org/php bookworm main

Now, update your package list and install PHP 8.2. You should know the remaining steps from here.

Enjoy your day!