1.检查当前安装的PHP包
yum list installed | grep php
如果有安装的PHP包，先删除他们
yum remove php.x86_64 php-cli.x86_64 php-common.x86_64 php-gd.x86_64 php-ldap.x86_64 php-mbstring.x86_64 php-mcrypt.x86_64 php-mysql.x86_64 php-pdo.x86_64
配置yum源
追加CentOS 7.x的源。
# yum install epel-release # 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
使用yum list命令查看可安装的包(Packege)。
# yum list | grep php74
安装PHP7.2.0w
yum源配置好了，下一步就安装PHP7.2.0。
# yum install mod_php72w php72w-bcmath php72w-cli php72w-common php72w-dba php72w-devel php72w-embedded php72w-enchant php72w-fpm php72w-gd php72w-imap php72w-interbase php72w-intl php72w-ldap php72w-mbstring php72w-mysql php72w-odbc php72w-pdo php72w-pdo_dblib php72w-pear php72w-pecl-igbinary php72w-pecl-xdebug php72w-pgsql php72w-phpdbg php72w-process php72w-pspell php72w-recode php72w-snmp php72w-soap php72w-tidy php72w-xml php72w-xmlrpc php72w-opcache php72w-pecl-apcu php72w-pecl-apcu-devel php72w-pecl-geoip php72w-pecl-igbinary-devel php72w-pecl-imagick php72w-pecl-imagick-devel php72w-pecl-libsodium php72w-pecl-memcached php72w-pecl-mongodb php72w-pecl-redis php72w-sodium
