PHP

[root@10 ~]# rpm -Uvh http://ftp.iij.ad.jp/pub/linux/fedora/epel/6/i386/epel-release-6-8.noarch.rpm
Retrieving http://ftp.iij.ad.jp/pub/linux/fedora/epel/6/i386/epel-release-6-8.noarch.rpm
Preparing... ########################################### [100%]
package epel-release-6-8.noarch is already installed

[root@10 ~]# rpm -Uvh http://rpms.famillecollet.com/enterprise/remi-release-6.rpm
Retrieving http://rpms.famillecollet.com/enterprise/remi-release-6.rpm
warning: /var/tmp/rpm-tmp.LINV5a: Header V4 DSA/SHA1 Signature, key ID 00f97f56: NOKEY
Preparing... ########################################### [100%]
1:remi-release ########################################### [100%]

[root@10 ~]# yum list --enablerepo=remi --enablerepo=remi-php56 | grep php

[root@10 ~]# yum install --enablerepo=remi --enablerepo=remi-php56 php php-mysql php-opcache 
                 php-pecl-apcu php-devel php-mbstring php-mcrypt php-mysqlnd php-phpunit-PHPUnit
                 php-pecl-xdebug php-pecl-xhprof php-pdo php-pear php-fpm php-cli php-xml php-bcmath 
                 php-process php-gd php-common

[root@10 ~]# php -v
PHP 5.6.31 (cli) (built: Jul  6 2017 08:16:47) 
Copyright (c) 1997-2016 The PHP Group
Zend Engine v2.6.0, Copyright (c) 1998-2016 Zend Technologies
    with Zend OPcache v7.0.6-dev, Copyright (c) 1999-2016, by Zend Technologies
    with Xdebug v2.5.5, Copyright (c) 2002-2017, by Derick Rethans