Step: 1. You must add the Webtatic & EPEL yum Repository :

For CentOS/RHEL 7.x :

# rpm -Uvh https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
# rpm -Uvh https://mirror.webtatic.com/yum/el7/webtatic-release.rpm

CentOS/RHEL 6.x :

# rpm -Uvh https://mirror.webtatic.com/yum/el6/latest.rpm

Step: 2. Now you can install PHP 7.0 (along with an opcode cache) by doing :

# yum install -y --enablerepo=webtatic-testing php70w php70w-opcache php70w-bcmath php70w-cli php70w-common php70w-dba php70w-devel php70w-embedded php70w-enchant php70w-fpm php70w-gd php70w-imap php70w-interbase php70w-intl php70w-ldap php70w-mbstring php70w-mcrypt php70w-mysql php70w-mysqlnd php70w-odbc php70w-pdo php70w-pdo_dblib php70w-pgsql php70w-process php70w-pspell php70w-recode php70w-snmp php70w-soap php70w-tidy php70w-xml php70w-xmlrpc --skip-broken

Step: 3. Changes on the Module File for Php :

# vi /etc/httpd/conf.d/php.conf

-- Line no. 6 & 10 replace with these Lines.

LoadModule php7_module modules/libphp7.so (replace with line nuber 6)
LoadModule php7_module modules/libphp7-zts.so (replace with line number 10)
AddHandler php7-script .php (replace with line number 16)

-- Save & Quit (:wq)

Step: 4. Create a php info file & Check :

# vi /var/www/html/info.php

<?php
  phpinfo ();
?>

-- Save & Quit (:wq)

# service httpd restart

Check on Browser http://IP-Address/info.php

or Check through CLI :

# php -v

PHP 7.0.0RC2 (cli) (built: Sep  4 2015 21:04:20)
Copyright (c) 1997-2015 The PHP Group
Zend Engine v3.0.0-dev, Copyright (c) 1998-2015 Zend Technologies
    with Zend OPcache v7.0.6-dev, Copyright (c) 1999-2015, by Zend Technologies
   
Thanks For Visiting on My Blog, For More Tutorials Keep Visiting My Blog