更新源

# 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

搜索源

# yum search php7

结果如下

mod_php72w.x86_64 : PHP module for the Apache HTTP Server

...部分省略...

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 d.a.t.a.b.a.s.e 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 d.a.t.a.b.a.s.es

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 d.a.t.a.b.a.s.es

php72w-mysqlnd.x86_64 : A module for PHP applications that use MySQL d.a.t.a.b.a.s.es

php72w-odbc.x86_64 : A module for PHP applications that use ODBC d.a.t.a.b.a.s.es

php72w-opcache.x86_64 : An opcode cache Zend extension

php72w-pdo.x86_64 : A d.a.t.a.b.a.s.e access abstraction module for PHP applications

php72w-pdo_dblib.x86_64 : MSSQL d.a.t.a.b.a.s.e 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 s.c.r.i.p.ts

php72w-pgsql.x86_64 : A PostgreSQL d.a.t.a.b.a.s.e module for PHP

php72w-phpdbg.x86_64 : Interactive PHP debugger

php72w-process.x86_64 : Modules for PHP s.c.r.i.p.t 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

查看已安装的PHP

# yum list installed | grep php

php.x86_64                         5.4.16-45.el7                  @base         

php-cli.x86_64                     5.4.16-45.el7                  @base         

php-common.x86_64                  5.4.16-45.el7                  @base         

php-gd.x86_64                      5.4.16-45.el7                  @base         

php-mbstring.x86_64                5.4.16-45.el7                  @base         

php-mysql.x86_64                   5.4.16-45.el7                  @base         

php-pdo.x86_64                     5.4.16-45.el7                  @base         

php-process.x86_64                 5.4.16-45.el7                  @base    

卸载已安装的PHP

# yum remove php.x86_64 php-cli.x86_64 php-common.x86_64 php-gd.x86_64 php-mbstring.x86_64 php-mysql.x86_64 php-pdo.x86_64 php-process.x86_64

安装新版PHP

# yum install mod_php72w.x86_64 php72w-cli.x86_64 php72w-common.x86_64 php72w-gd.x86_64 php72w-mbstring.x86_64 php72w-mysql.x86_64 php72w-pdo.x86_64 php72w-process.x86_64

最后提示

Complete!

说明安装成功