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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