PHP on CentOS-6.7 with Plesk-12.5.20

[epretorious]

I'm attempting to install WHMCS-6.3.1 on Plesk-12.5.30 on CentOS-6.7 but the WHMCS installer complains that the currently installed version of PHP (i.e., PHP-5.3.3) is inadequate. (WHMCS-6.x requires PHP >= 5.3.7.)

 

[root@cp whmcs]# php -v
PHP 5.3.3 (cli) (built: Jul  9 2015 17:39:00)
Copyright (c) 1997-2010 The PHP Group
Zend Engine v2.3.0, Copyright (c) 1998-2010 Zend Technologies
   with the ionCube PHP Loader (enabled) + Intrusion Protection from ioncube24.com (unconfigured) v5.0.12, Copyright (c) 2002-2015, by ionCube Ltd.

[root@cp whmcs]# yum upgrade php
<<<snip>>>
--> Running transaction check
---> Package php.x86_64 0:5.3.3-46.el6_6 will be updated
---> Package php.x86_64 0:5.3.3-47.el6 will be an update

 

AFAICT, three versions of PHP are currently installed:

[root@cp whmcs]# rpm -qa | grep php | sort
php-5.3.3-46.el6_6.x86_64
php5-ioncube-loader-5.0.12-centos6.15081418.x86_64
php-cli-5.3.3-46.el6_6.x86_64
php-common-5.3.3-46.el6_6.x86_64
php-gd-5.3.3-46.el6_6.x86_64
php-imap-5.3.3-46.el6_6.x86_64
php-mbstring-5.3.3-46.el6_6.x86_64
php-mysql-5.3.3-46.el6_6.x86_64
php-pdo-5.3.3-46.el6_6.x86_64
php-xml-5.3.3-46.el6_6.x86_64
plesk-php56-5.6.24-centos6.16072212.x86_64
plesk-php56-bcmath-5.6.24-centos6.16072212.x86_64
plesk-php56-cli-5.6.24-centos6.16072212.x86_64
plesk-php56-dba-5.6.24-centos6.16072212.x86_64
plesk-php56-enchant-5.6.24-centos6.16072212.x86_64
plesk-php56-fpm-5.6.24-centos6.16072212.x86_64
plesk-php56-gd-5.6.24-centos6.16072212.x86_64
plesk-php56-imagick-3.1.2-centos6.15081011.x86_64
plesk-php56-imap-5.6.24-centos6.16072212.x86_64
plesk-php56-intl-5.6.24-centos6.16072212.x86_64
plesk-php56-ioncube-loader-5.0.18-centos6.15101214.x86_64
plesk-php56-ldap-5.6.24-centos6.16072212.x86_64
plesk-php56-mbstring-5.6.24-centos6.16072212.x86_64
plesk-php56-mcrypt-5.6.24-centos6.16072212.x86_64
plesk-php56-mysql-5.6.24-centos6.16072212.x86_64
plesk-php56-odbc-5.6.24-centos6.16072212.x86_64
plesk-php56-opcache-5.6.24-centos6.16072212.x86_64
plesk-php56-pdo-5.6.24-centos6.16072212.x86_64
plesk-php56-pear-1.9.4-centos6.16072212.noarch
plesk-php56-pgsql-5.6.24-centos6.16072212.x86_64
plesk-php56-process-5.6.24-centos6.16072212.x86_64
plesk-php56-pspell-5.6.24-centos6.16072212.x86_64
plesk-php56-redis-2.2.5-centos6.15081011.x86_64
plesk-php56-release-5.6.24-centos6.16072212.x86_64
plesk-php56-snmp-5.6.24-centos6.16072212.x86_64
plesk-php56-soap-5.6.24-centos6.16072212.x86_64
plesk-php56-tidy-5.6.24-centos6.16072212.x86_64
plesk-php56-xdebug-2.2.3-centos6.15081011.x86_64
plesk-php56-xml-5.6.24-centos6.16072212.x86_64
plesk-php56-xmlrpc-5.6.24-centos6.16072212.x86_64
plesk-php70-7.0.9-centos6.16072211.x86_64
plesk-php70-bcmath-7.0.9-centos6.16072211.x86_64
plesk-php70-cli-7.0.9-centos6.16072211.x86_64
plesk-php70-dba-7.0.9-centos6.16072211.x86_64
plesk-php70-enchant-7.0.9-centos6.16072211.x86_64
plesk-php70-fpm-7.0.9-centos6.16072211.x86_64
plesk-php70-gd-7.0.9-centos6.16072211.x86_64
plesk-php70-imagick-3.4.1-centos6.16063012.x86_64
plesk-php70-imap-7.0.9-centos6.16072211.x86_64
plesk-php70-intl-7.0.9-centos6.16072211.x86_64
plesk-php70-ldap-7.0.9-centos6.16072211.x86_64
plesk-php70-mbstring-7.0.9-centos6.16072211.x86_64
plesk-php70-mcrypt-7.0.9-centos6.16072211.x86_64
plesk-php70-mysql-7.0.9-centos6.16072211.x86_64
plesk-php70-odbc-7.0.9-centos6.16072211.x86_64
plesk-php70-opcache-7.0.9-centos6.16072211.x86_64
plesk-php70-pdo-7.0.9-centos6.16072211.x86_64
plesk-php70-pear-1.10.1-centos6.16072211.noarch
plesk-php70-pgsql-7.0.9-centos6.16072211.x86_64
plesk-php70-process-7.0.9-centos6.16072211.x86_64
plesk-php70-pspell-7.0.9-centos6.16072211.x86_64
plesk-php70-release-7.0.9-centos6.16072211.x86_64
plesk-php70-snmp-7.0.9-centos6.16072211.x86_64
plesk-php70-soap-7.0.9-centos6.16072211.x86_64
plesk-php70-tidy-7.0.9-centos6.16072211.x86_64
plesk-php70-xml-7.0.9-centos6.16072211.x86_64
plesk-php70-xmlrpc-7.0.9-centos6.16072211.x86_64
psa-php5-configurator-1.7.0-cos6.build1205150820.19.x86_64
psa-phpmyadmin-4.6.0-cos6.build1205160427.18.noarch
psa-phppgadmin-5.1-cos6.build1205150814.17.noarch

 

How can I fix this?