我是用虚拟机编译的系统centos7，处理器I5 4590，分配了双核1G内存.编译用时7分钟
什么情况下适合编译？
多版本共存的情况下，编译方便管理，并且可以针对需要最小化安装而不需要安装一堆扩展
如果没有特殊需要，yum更加合适，安装都不用半分钟，并且能通过yum源持续化更新
简单记录下过程
yum install epel-release #EPEL官方源
yum install libmcrypt libmcrypt-devel gcc libxml2 libxml2-devel openssl openssl-devel curl-devel libjpeg-devel libpng-devel freetype-devel libmcrypt-devel
下载包并解压，当前php版本为7.0.4
wget http://cn2.php.net/distributions/php-7.0.4.tar.gz
tar xvzf php-7.0.4.tar.gz
新建php用户
groupadd -r php && useradd -r -g php -s /bin/false -d /usr/local/php7 -M php
cd php-7.0.4
安装
./configure --prefix=/usr/local/php7 --exec-prefix=/usr/local/php7 --bindir=/usr/local/php7/bin --sbindir=/usr/local/php7/sbin --includedir=/usr/local/php7/include --libdir=/usr/local/php7/lib/php --mandir=/usr/local/php7/php/man --with-config-file-path=/usr/local/php7/etc --with-mysql-sock=/var/run/mysql/mysql.sock --with-mcrypt=/usr/include --with-mhash --with-openssl --with-mysql=shared,mysqlnd --with-mysqli=shared,mysqlnd --with-pdo-mysql=shared,mysqlnd --with-gd --with-iconv --with-zlib --enable-zip --enable-inline-optimization --disable-debug --disable-rpath --enable-shared --enable-xml --enable-bcmath --enable-shmop --enable-sysvsem --enable-mbregex --enable-mbstring --enable-ftp --enable-gd-native-ttf --enable-pcntl --enable-sockets --with-xmlrpc --enable-soap --without-pear --with-gettext --enable-session --with-curl --with-jpeg-dir --with-freetype-dir --enable-opcache --enable-fpm --with-fpm-user=nginx --with-fpm-group=nginx --without-gdbm --disable-fileinfo
make clean && make && make install
cp php.ini-production /usr/local/php7/etc/php.ini
cp sapi/fpm/init.d.php-fpm /etc/init.d/php-fpm
cp /usr/local/php7/etc/php-fpm.conf.default /usr/local/php7/etc/php-fpm.conf
cp /usr/local/php7/etc/php-fpm.d/www.conf.default /usr/local/php7/etc/php-fpm.d/www.conf
echo -e '\nexport PATH=/usr/local/php7/bin:/usr/local/php7/sbin:$PATH\n' >> /etc/profile && source /etc/profile
mkdir -p /var/log/php-fpm/ && mkdir -p /var/run/php-fpm && cd /var/run/ && chown -R nginx:nginx php-fpm
mkdir -p /var/log/php-fpm/ && mkdir -p /var/run/php-fpm && cd /var/run/ && chown -R nginx:nginx php-fpmmkdir -p /var/lib/php/session
mkdir -p /var/lib/php/session
chmod +x /etc/init.d/php-fpm
chkconfig --add php-fpm
chkconfig php-fpm on
php-fpm -t
编辑
vim /usr/local/php7/etc/php.ini
加入
zend_extension=opcache.so
service php-fpm restart
php -v
PHP 7.0.4 (cli) (built: Mar 24 2016 19:25:14) ( NTS )
Copyright (c) 1997-2016 The PHP Group
Zend Engine v3.0.0, Copyright (c) 1998-2016 Zend Technologies
with Zend OPcache v7.0.6-dev, Copyright (c) 1999-2016, by Zend Technologies
OK了
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