Centos 7 : Install Multiple PHP Version (php5.6 and php7.3, php7.4, php8.1)

The guide (refer www.tecmint.com)

1. Installing and enabling the EPEL and Remi repository - offers the latest versions of the PHP stack on CentOS

# yum install https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
# yum install http://rpms.remirepo.net/enterprise/remi-release-7.rpm

2. Install the yum-utils package - which is used to enable or disable Yum repositories on the system

# yum install yum-utils

3. Install different versions of PHP, use yum-config-manager command to install multiple versions of PHP:

Install PHP 8.1 Version

# yum install php81 php-common 
# yum install php81-php-mysql php81-php-fpm php81-php-pecl-memcache php81-php-pecl-memcached php81-php-gd php81-php-mbstring php81-php-mcrypt php81-php-xml php81-php-pecl-apc php81php-cli php81-php-pear php81-php-pdo

Install PHP 7.4 Version

# yum install php74 php-common 
# yum install php74-php-mysql php74-php-fpm php74-php-pecl-memcache php74-php-pecl-memcached php74-php-gd php74-php-mbstring php74-php-mcrypt php74-php-xml php74-php-pecl-apc php74-php-cli php74-php-pear php74-php-pdo

Install PHP 7.3 Version

# yum-config-manager --enable remi-php73  [Default]
# yum install php php-common 
# yum install php-mysql php-fpm php-pecl-memcache php-pecl-memcached php-gd php-mbstring php-mcrypt php-xml php-pecl-apc php-cli php-pear php-pdo

Install PHP 5.6 Version

# yum install php56 php56-php-common 
# yum install php56-php-mysql php56-php-fpm php56-php-pecl-memcache php56-php-pecl-memcached php56-php-gd php56-php-mbstring php56-php-mcrypt php56-php-xml php56-php-pecl-apc php56-php-cli php56-php-pear php56-php-pdo

4. Command to check the default version of PHP

# php -v 
# yum list installed | grep php - list installed

5. The PHP configuration path location :

• /etc/php.d/ for PHP7.3
• /opt/remi/php56/ for PHP5.6

Repository :

• https://rpms.remirepo.net
• https://fedoraproject.org/wiki/EPEL