Подключаем репозитарии
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://dl.fedoraproject.org/pub/epel/epel-release-latest-6.noarch.rpm rpm -Uvh https://mirror.webtatic.com/yum/el6/latest.rpm
Установка
yum install php56w php56w-common php56w-mysql php56w-mbstring php56w-mcrypt php56w-devel php56w-xml php56w-gd
Список пакетов
php56w php56w-bcmath php56w-cli php56w-common php56w-dba php56w-devel php56w-embedded php56w-enchant php56w-fpm php56w-gd php56w-imap php56w-interbase php56w-intl php56w-ldap php56w-mbstring php56w-mcrypt php56w-mssql php56w-mysql php56w-mysqlnd php56w-odbc php56w-opcache php56w-pdo php56w-pear php56w-pecl-apcu php56w-pecl-gearman php56w-pecl-geoip php56w-pecl-imagick php56w-pecl-memcache php56w-pecl-xdebug php56w-pgsql php56w-phpdbg php56w-process php56w-pspell php56w-recode php56w-snmp php56w-soap php56w-tidy php56w-xml php56w-xmlrpc