1.安装php：
yum 安装必备
yum install libxml2 libxml2-devel openssl openssl-devel bzip2 bzip2-devel libcurl libcurl-devel libjpeg libjpeg-devel libpng libpng-devel freetype freetype-devel gmp gmp-devel libmcrypt libmcrypt-devel readline readline-devel libxslt libxslt-devel
yum install ntp vim-enhanced gcc gcc-c++ gcc-g77 flex bison autoconf automake glibc glibc-devel glib2 glib2-devel bzip2 bzip2-devel ncurses ncurses-devel libtool* zlib-devel libxml2-devel libjpeg-devel libpng-devel libtiff-devel fontconfig-devel freetype-devel libXpm-devel gettext-devel curl curl-devel pam-devel e2fsprogs e2fsprogs-devel krb5 krb5-devel libidn libidn-devel openssl openssl-devel openldap openldap-devel nss_ldap openldap-clients openldap-servers gzip make bzip2bzip2-devel pcre-devel wget ncurses-devel cmake make perl
yum -y install gcc automake autoconf libtool make gcc-c++ glibc libmcrypt-devel mhash-devel libxslt-devel libjpeg libjpeg-devel libpng libpng-devel freetype freetype-devel lib
上面的yum安装存在重复，不去细细排查了，您复制上面三个安装即可
wget -O php7.tar.gz http://cn2.php.net/get/php-7.1.1.tar.gz/from/this/mirror
解压
tar -xvf php7.tar.gz cd php-7.1.1
编译：
./configure \ --prefix=/usr/local/php \ --with-config-file-path=/etc \ --enable-fpm \ --with-fpm-user=nginx \ --with-fpm-group=nginx \ --enable-inline-optimization \ --disable-debug \ --disable-rpath \ --enable-shared \ --enable-soap \ --with-libxml-dir \ --with-xmlrpc \ --with-openssl \ --with-mcrypt \ --with-mhash \ --with-pcre-regex \ --with-sqlite3 \ --with-zlib \ --enable-bcmath \ --with-iconv \ --with-bz2 \ --enable-calendar \ --with-curl \ --with-cdb \ --enable-dom \ --enable-exif \ --enable-fileinfo \ --enable-filter \ --with-pcre-dir \ --enable-ftp \ --with-gd \ --with-openssl-dir \ --with-jpeg-dir \ --with-png-dir \ --with-zlib-dir \ --with-freetype-dir \ --enable-gd-native-ttf \ --enable-gd-jis-conv \ --with-gettext \ --with-gmp \ --with-mhash \ --enable-json \ --enable-mbstring \ --enable-mbregex \ --enable-mbregex-backtrack \ --with-libmbfl \ --with-onig \ --enable-pdo \ --with-mysqli=mysqlnd \ --with-pdo-mysql=mysqlnd \ --with-zlib-dir \ --with-pdo-sqlite \ --with-readline \ --enable-session \ --enable-shmop \ --enable-simplexml \ --enable-sockets \ --enable-sysvmsg \ --enable-sysvsem \ --enable-sysvshm \ --enable-wddx \ --with-libxml-dir \ --with-xsl \ --enable-zip \ --enable-mysqlnd-compression-support \ --with-pear \ --enable-opcache
在centos7下面，会报错：Don’t know how to define struct flock on this system, set –enable-opcache=no
解决办法：vim /etc/ld.so.conf.d/local.conf # 编辑库文件
/usr/local/lib # 添加该行 :wq # 保存退出 ldconfig # 执行这个命令行，使之生效
！！记得编译完后不能移除这行，会导致php无法启动！！
make && make install
复制配置文件到/etc
cp php.ini-development /etc/php.ini
创建快捷方式：
ln -s /usr/local/php/bin/php /usr/bin/php
配置php-fpm：
cp php.ini-production /etc/php.ini cp /usr/local/php/etc/php-fpm.conf.default /usr/local/php/etc/php-fpm.conf cp /usr/local/php/etc/php-fpm.d/www.conf.default /usr/local/php/etc/php-fpm.d/www.conf cp sapi/fpm/init.d.php-fpm /etc/init.d/php-fpm chmod +x /etc/init.d/php-fpm
启动：
/etc/init.d/php-fpm start
2.安装扩展：
oauth
imap
mongodb
redis （Yii2 不安装redis扩展也是可以用的，可以不用安装）
2.1安装oauth扩展：
wget http://pecl.php.net/get/oauth-2.0.2.tgz tar -zxf oauth-2.0.2.tgz cd oauth-2.0.2 /usr/local/php/bin/phpize ./configure --with-php-config=/usr/local/php/bin/php-config make && make install vim /etc/php.ini # 添加 extension=oauth.so /etc/init.d/php-fpm restart
2.2 安装imap 扩展
cd php-7.1.1/ext/imap /usr/local/php/bin/phpize ./configure --with-php-config=/usr/local/php/bin/php-config --with-imap=/usr/lib64 --with-imap-ssl --with-kerberos make && make install vim /etc/php.ini extension=imap.so
如果报错：Cannot find imap library (libc-client.a)
yum install libc-client-devel.x86_64 ln -s /usr/lib64/libc-client.so /usr/lib/libc-client.so
2.3 安装 mongodb
wget https://pecl.php.net/get/mongodb-1.2.5.tgz tar zxvf mongodb-1.2.5.tgz cd mongodb-1.2.5 /usr/local/php/bin/phpize ./configure --with-php-config=/usr/local/php/bin/php-config make && make install vim /etc/php.ini extension=mongodb.so
3. 配置
3.1 mysql的配置，要使用127.0.0.1 不要使用localhost
localhost 会使用unix socket，而不是tcp连接。
4.到这里基本就都配置好了。