一、配制yum源地址

 yum install epel-release -y
 rpm -Uvh https://mirror.webtatic.com/yum/el7/webtatic-release.rpm

二、清除已安装版本

   此步聚的目的是避免与之前安装过的版本产生冲突，如之前没有安装过，此步可以跳过

yum -y remove php*

三、安装核心模块

yum install php72w

四、安装扩展包

yum -y install php72w-cli php72w-common php72w-devel php72w-embedded php72w-fpm php72w-gd php72w-mysqlnd php72w-mbstring php72w-pdo php72w-xml
yum -y install php72w-mcrypt php72w-pear php72w-pecl-imagick php72w-tidy

如果需要更多的扩展包，可通过yum search命令查找：

yum search php72w

五、启动apache服务

systemctl start httpd

为避免系统重启以后apache服务未启动，可以设置开机自机动，命令如下：

systemctl enable httpd

Loaded plugins: fastestmirror

Loading mirror speeds from cached hostfile

================================================================================================== N/S matched: php72w ===================================================================================================

mod_php72w.x86_64 : PHP module for the Apache HTTP Server

php72w-bcmath.x86_64 : A module for PHP applications for using the bcmath library

php72w-cli.x86_64 : Command-line interface for PHP

php72w-common.x86_64 : Common files for PHP

php72w-dba.x86_64 : A database abstraction layer module for PHP applications

php72w-devel.x86_64 : Files needed for building PHP extensions

php72w-embedded.x86_64 : PHP library for embedding in applications

php72w-enchant.x86_64 : Enchant spelling extension for PHP applications

php72w-fpm.x86_64 : PHP FastCGI Process Manager

php72w-gd.x86_64 : A module for PHP applications for using the gd graphics library

php72w-imap.x86_64 : A module for PHP applications that use IMAP

php72w-interbase.x86_64 : A module for PHP applications that use Interbase/Firebird databases

php72w-intl.x86_64 : Internationalization extension for PHP applications

php72w-ldap.x86_64 : A module for PHP applications that use LDAP

php72w-mbstring.x86_64 : A module for PHP applications which need multi-byte string handling

php72w-mysql.x86_64 : A module for PHP applications that use MySQL databases

php72w-mysqlnd.x86_64 : A module for PHP applications that use MySQL databases

php72w-odbc.x86_64 : A module for PHP applications that use ODBC databases

php72w-opcache.x86_64 : An opcode cache Zend extension

php72w-pdo.x86_64 : A database access abstraction module for PHP applications

php72w-pdo_dblib.x86_64 : MSSQL database module for PHP

php72w-pear.noarch : PHP Extension and Application Repository framework

php72w-pecl-apcu.x86_64 : APCu - APC User Cache

php72w-pecl-apcu-devel.x86_64 : APCu developer files (header)

php72w-pecl-geoip.x86_64 : Extension to map IP addresses to geographic places

php72w-pecl-igbinary.x86_64 : Replacement for the standard PHP serializer

php72w-pecl-igbinary-devel.x86_64 : Igbinary developer files (header)

php72w-pecl-imagick.x86_64 : Provides a wrapper to the ImageMagick library

php72w-pecl-imagick-devel.x86_64 : Imagick developer files (header)

php72w-pecl-libsodium.x86_64 : Wrapper for the Sodium cryptographic library

php72w-pecl-memcached.x86_64 : Extension to work with the Memcached caching daemon

php72w-pecl-mongodb.x86_64 : PECL package MongoDB driver

php72w-pecl-redis.x86_64 : Extension for communicating with the Redis key-value store

php72w-pecl-xdebug.x86_64 : PECL package for debugging PHP scripts

php72w-pgsql.x86_64 : A PostgreSQL database module for PHP

php72w-phpdbg.x86_64 : Interactive PHP debugger

php72w-process.x86_64 : Modules for PHP script using system process interfaces

php72w-pspell.x86_64 : A module for PHP applications for using pspell interfaces

php72w-recode.x86_64 : A module for PHP applications for using the recode library

php72w-snmp.x86_64 : A module for PHP applications that query SNMP-managed devices

php72w-soap.x86_64 : A module for PHP applications that use the SOAP protocol

php72w-sodium.x86_64 : Wrapper for the Sodium cryptographic library

php72w-tidy.x86_64 : Standard PHP module provides tidy library support

php72w-xml.x86_64 : A module for PHP applications which use XML

php72w-xmlrpc.x86_64 : A module for PHP applications which use the XML-RPC protocol