Centos 7 에서 PHP7.2 로 업그레이드 하기
1. 우선 remi repository를 yum 에 추가 한다.
$ wget https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
$ rpm -Uvh epel-release-latest-7.noarch.rpm
$ wget http://rpms.remirepo.net/enterprise/remi-release-7.rpm
$ rpm -Uvh remi-release-7.rpm
$ yum install -y yum-utils
$ yum-config-manager --enable remi-php72
2. 기존 설치된 PHP를 제거하고 7.2 버전을 설치
$ yum remove -y `yum list installed | cut -d " " -f 1 | grep php`
$ yum install –enablerepo=remi –enablerepo=remi-php56 php php-bcmath php-cli php-common php-devel php-gd php-mbstring php-mysql php-odbc php-pdo php-process php-xml php-xmlrpc
$ yum install -y php-common php-fpm php-cli \
php-process \
php-opcache php-pecl-apcu \
php-mysqlnd php-pdo \
php-gd \
php-mbstring php-xml \
php-pecl-zip \
php-bcmath
$ yum install php72-php
$ yum update php-*
$ php -v
출처: https://blog.asamaru.net/2018/02/14/install-php-7-2-on-centos-with-remi-rpm-repository/