Install php7.4 on Centos8/Oracle Linux 8

Install epel-release

yum install -y epel-release

check all available PHP versions using the following command:

dnf module list php

// with following output 
Oracle Linux 8 Application Stream (aarch64)
Name                     Stream                      Profiles                                       Summary
php                      7.2 [d]                     common [d], devel, minimal                     PHP scripting language
php                      7.3                         common [d], devel, minimal                     PHP scripting language
php                      7.4 [e]                     common [d], devel, minimal                     PHP scripting language
php                      8.0                         common [d], devel, minimal                     PHP scripting language

The default PHP version is set to PHP 7.2. If you want to install the latest PHP 7.4, you will need to reset the default PHP steams.

Run the following command to reset the default PHP

dnf module reset php

Next set php7.4 as default

dnf module enable php:7.4

Now you can install php7.4

yum install php php-common