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://dl.fedoraproject.org/pub/epel/epel-release-latest-6.noarch.rpm rpm -Uvh https://mirror.webtatic.com/yum/el6/latest.rpm
然后就可以直接yum安装php7.0了，可以安装的拓展如下：
yum install php70w-common php70w-fpm php70w-opcache php70w-gd php70w-mysqlnd php70w-mbstring php70w-pecl-redis php70w-pecl-memcached php70w-devel
就这一条命令，就可以安装了下面的拓展了！
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
安装包 提供的拓展 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_sqlite, php70w-sqlite3 php70w-pdo_dblib php70w-mssql php70w-pear php70w-pecl-apcu php70w-pecl-imagick php70w-pecl-memcached php70w-pecl-mongodb php70w-pecl-redis 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
譬如你要加装xml，那么可以直接,别怀疑就是这么简单：
yum install php70w-xml