yum安装PHP7

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://mirror.webtatic.com/yum/el6/latest.rpm

Now you can install PHP 7.0 (along with an opcode cache) by doing:

yum install --enablerepo=webtatic-testing php70w php70w-opcache

If you know what you are doing, you can upgrade PHP by:

yum install yum-plugin-replace   yum replace --enablerepo=webtatic-testing php-common --replace-with=php70w-common

Packages

Package	Provides
php70w	mod_php, php70w-zts
php70w-bcmath
php70w-cli	php-cgi, php-pcntl, php-readline
php70w-common	php-api, php-bz2, php-calendar, php-ctype, php-curl, php-date, php-exif, php-fileinfo, php-filter, php-ftp, php-gettext, php-gmp, php-hash, php-iconv, php-json, php-libxml, php-openssl, php-pcre, php-pecl-Fileinfo, php-pecl-phar, php-pecl-zip, php-reflection, php-session, php-shmop, php-simplexml, php-sockets, php-spl, php-tokenizer, php-zend-abi, php-zip, php-zlib
php70w-dba
php70w-devel
php70w-embedded	php-embedded-devel
php70w-enchant
php70w-fpm
php70w-gd
php70w-imap
php70w-interbase	php_database, php-firebird
php70w-intl
php70w-ldap
php70w-mbstring
php70w-mcrypt
php70w-mysql	php-mysqli, php_database
php70w-mysqlnd	php-mysqli, php_database
php70w-odbc	php-pdo_odbc, php_database
php70w-opcache	php70w-pecl-zendopcache
php70w-pdo
php70w-pdo_dblib	php70w-mssql
php70w-pear
php70w-pecl-xdebug
php70w-pgsql	php-pdo_pgsql, php_database
php70w-phpdbg
php70w-process	php-posix, php-sysvmsg, php-sysvsem, php-sysvshm
php70w-pspell
php70w-recode
php70w-snmp
php70w-soap
php70w-tidy
php70w-xml	php-dom, php-domxml, php-wddx, php-xsl
php70w-xmlrpc

参考：https://webtatic.com/packages/php70/