How to install php on CentOS?

Steps to install php on CentOS:

1. Configure yum library

First, Remi and EPEL yum repositories need to be enabled on the system. Use the following command to install the EPEL repository on CentOS system

Use this command to install the epel-release yum repository

# yum install epel-release

Now execute one of the following commands according to your operating system version to install the Remi storage library.

$ rpm -Uvh http://rpms.famillecollet.com/enterprise/remi-release-6.rpm

2. Install PHP 7 on CentOS 6

Your system is ready to install PHP from the yum repository. Use one of the following commands to install PHP 7.3 or PHP 7.2 or PHP 7.1 on your system as required.

## 安装PHP 7.3 
$ yum --enablerepo=remi-php73 install php

## 安装PHP 7.2 
$ yum --enablerepo=remi-php72 install php

## 安装PHP 7.1 
$ yum --enablerepo=remi-php71 install php

I have installed the latest version of PHP 7.3 on my system. Now run the following command to check the currently used PHP version of your system.

$ php -v

PHP 7.3.0 (cli) (built: Dec  4 2018 16:12:20) ( NTS )
Copyright (c) 1997-2018 The PHP Group
Zend Engine v3.3.0-dev, Copyright (c) 1998-2018 Zend Technologies

Installing PHP Modules

You may also need to install additional PHP modules based on your application needs.

The following commands will install some useful PHP modules.

### 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

You can run the following command to search for other available PHP modules under the configured yum repository.

The following example command searches all modules for PHP 7.3.

$ yum --enablerepo=remi-php73 search php | grep php73

php73.x86_64 : Package that installs PHP 7.3
php73-php.x86_64 : PHP scripting language for creating dynamic web sites
php73-php-bcmath.x86_64 : A module for PHP applications for using the bcmath
php73-php-brotli.x86_64 : Brotli Extension for PHP
php73-php-cli.x86_64 : Command-line interface for PHP
php73-php-common.x86_64 : Common files for PHP
...
...

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