How to Install php7.X in Centos 7 -

Method 1:

sudo yum install epel-release

sudo rpm -Uvh http://rpms.famillecollet.com/enterprise/remi-release-7.rpm

To Install PHP from yum repositories. Use one of the following commands to install PHP 7.4 or PHP 7.3 or PHP 7.2 or PHP 7.1 on your system based on your requirements.
Install PHP 7.4

     yum --enablerepo=remi-php74 install php

Install PHP 7.3

     yum --enablerepo=remi-php73 install php

Install PHP 7.2

     yum --enablerepo=remi-php72 install php

Install PHP 7.1

    yum --enablerepo=remi-php71 install php

We have installed the latest version of PHP 7.4 on my system.
And to check the PHP version.

php -v

Install additional PHP modules based on your application requirements
For PHP 7.4

yum --enablerepo=remi-php74 install php-xml php-soap php-xmlrpc php-mbstring php-json php-gd php-mcrypt

For PHP 7.3

yum --enablerepo=remi-php73 install php-xml php-soap php-xmlrpc php-mbstring php-json php-gd php-mcrypt

For PHP 7.2

yum --enablerepo=remi-php72 install php-xml php-soap php-xmlrpc php-mbstring php-json php-gd php-mcrypt

For PHP 7.1

yum --enablerepo=remi-php71 install php-xml php-soap php-xmlrpc php-mbstring php-json php-gd php-mcrypt

Method 2

1) Install epel release and yum utils

yum install epel-release yum-utils –y

2) To install the Remi repository for CentOS 7, run:

sudo yum install http://rpms.remirepo.net/enterprise/remi-release-7.rpm

3) We’ll install PHP 7.4, which is currently the most updated stable version of PHP.

Based on your requirement, configure the PHP 7.x repository

To configure PHP 7.1 repository, use the below command,

[root@webnoidschools ~]# yum-config-manager --enable remi-php71

To configure PHP 7.2 repository, use below command,

[root@webnoidschools ~]# yum-config-manager --enable remi-php72

To configure PHP 7.3 repository, use below command

[root@webnoidschools ~]# yum-config-manager --enable remi-php73

To configure PHP 7.4 repository, use below command

[root@webnoidschools ~]# yum-config-manager --enable remi-php74

4) The following command will install all the required packages to get PHP 7.4

sudo yum install php php-common php-opcache php-mcrypt php-cli php-gd php-curl php-mysql  php-mysqlnd php-fpm  -y

5) To confirm that PHP is available as your chosen version, run:

php –version

6) To search all PHP modules use the below command:

[root@Webnoidschools ~]#  yum search php | more

To Verify PHP Installation.

I am assuming Apache web Server is installed on your system, start its service using the below systemctl command

[root@webnoidschools ~]# systemctl start httpd

Now create a info.php file under /var/www/html with following contents,

[root@webnoidschools ~]# cd /var/www/html/

[root@webnoidschools html]# vi info.php

<?php
phpinfo();
?>

Open the web browser and type the ip of your server followed by info.php,

http://Server IP Address/info.php

How to Install php7.X in Centos 7