php5.6.27安装方法：首先安装编译工具，并添加php组和用户；然后安装依赖，添加扩展包，更新yum源；接着下载php并解压安装；最后配置PHP即可。
本文操作环境：centos7系统、php5.6.27版，DELL G3电脑
php5.6.27安装教程
centos7 编译安装php5.6.27
安装编译工具
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yum -y install gcc gcc-c++
添加php组和用户，不创建home目录，不允许登陆系统
#-M, --no-create-home 不创建用户的主目录 #-g, --gid GROUP 新账户主组的名称或 ID #-s, --shell SHELL 新账户的登录 shell groupadd web useradd -M -s /sbin/nologin -g web php
安装依赖，没有libmcrypt libmcrypt-devel mcrypt mhash的话，添加扩展包，更新yum源
yum -y install epel-release yum -y update yum -y install libmcrypt libmcrypt-devel mcrypt mhash yum -y install libxml2-devel libpng-devel libjpeg-devel zlib bzip2 bzip2-devel \ libtool-ltdl-devel pcre-devel openssl-devel freetype-devel libcurl-devel icu \ perl-libintl postgresql libicu-devel
下载php解压
cd /usr/local/src/ wget http://cn2.php.net/distributions/php-5.6.27.tar.gz tar -zxvf php-5.6.27.tar.gz cd php-5.6.27/
安装php
./configure \ --prefix=/usr/local/php5.6.27 \ --with-config-file-path=/usr/local/php5.6.27/etc/ \ --enable-inline-optimization \ --enable-shared \ --enable-opcache \ --enable-fpm \ --with-fpm-user=php \ --with-fpm-group=web \ --with-mysql=mysqlnd \ --with-mysqli=mysqlnd \ --with-pdo-mysql=mysqlnd \ --with-gettext \ --enable-mbstring \ --with-iconv \ --with-mcrypt \ --with-mhash \ --with-openssl \ --enable-bcmath \ --enable-soap \ --with-libxml-dir \ --enable-pcntl \ --enable-shmop \ --enable-sysvmsg \ --enable-sysvsem \ --enable-sysvshm \ --enable-sockets \ --enable-intl \ --with-curl \ --with-zlib \ --enable-zip \ --with-bz2 \ --enable-xml \ --with-pcre-dir \ --with-gd \ --enable-static \ --enable-wddx \ --with-xmlrpc \ --with-libdir=/usr/lib64 \ --with-jpeg-dir=/usr/lib64 \ --with-freetype-dir=/usr/lib64 \ --with-png-dir=/usr/lib64 make && make install
配置 PHP
cp php.ini-development /usr/local/php5.6.27/etc/php.ini cp /usr/local/php5.6.27/etc/php-fpm.conf.default /usr/local/php5.6.27/etc/php-fpm.conf
创建开机启动
vi /lib/systemd/system/php-fpmd.service
[Unit] Description=The PHP FastCGI Process Manager After=network.target [Service] Type=forking PIDFile=/run/php-fpm.pid ExecStart=/usr/local/php5.6.27/sbin/php-fpm --daemonize -g /run/php-fpm.pid ExecReload=/bin/kill -USR2 $MAINPID ExecStop=/bin/kill -SIGINT $MAINPID PrivateTmp=true [Install] WantedBy=multi-user.target
PS：如果yum安装，php-fpm.service文件的内容
[Unit] Description=The PHP FastCGI Process Manager After=syslog.target network.target [Service] Type=notify PIDFile=/run/php-fpm.pid EnvironmentFile=/etc/sysconfig/php-fpm ExecStart=/usr/sbin/php-fpm --nodaemonize ExecReload=/bin/kill -USR2 $MAINPID PrivateTmp=true [Install]
WantedBy=multi-user.target
添加运行权限
chmod +x /lib/systemd/system/php-fpmd.service
设置开机自启动
systemctl enable php-fpmd.service
运行
systemctl start php-fpmd.service
停止
systemctl stop php-fpmd.service
重新加载
systemctl daemon-reload
删除开机启动
systemctl disable php-fpmd.service
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