How to Upgrade and Downgrade the PHP Versions on CentOS 7.9

 php -v

rpm -qa | grep php

yum remove "php-*" -y

yum --disablerepo=remi-php72 --enablerepo=remi-php73 install php php-gd php-mbstring php-mysql php-curl php-mcrypt

rpm -qa | grep php

yum remove "php-*" -y

yum --disablerepo=remi-php73 --enablerepo=remi-php56 install php php-gd php-mbstring php-mysql php-curl php-mcrypt

php -v