I want to install php8.3 on Ubuntu 20.04.6. but
sudo apt-get install php8.3
returns :
E: Unable to locate package php8.3
E: Couldn't find any package by glob 'php8.3'
E: Couldn't find any package by regex 'php8.3'
what to do?
lsb_release -a
returns :
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 20.04.6 LTS
Release: 20.04
Codename: focal
apt policy php8.3 and apt-cache search php8.3 returns nothing
I added ppa:ondrej/php repository.
cat /etc/apt/sources.list.d/ondrej-ubuntu-php-focal.list
returns
deb http://ppa.launchpad.net/ondrej/php/ubuntu focal main
# deb-src http://ppa.launchpad.net/ondrej/php/ubuntu focal main
in fact on a machine php8.3 is installed but when trying to install extension php8.3-gmp on it ,can not find