下载好php-7.2.18.tar.gz源码，然后再上传到服务器的root目录下，开始解压
tar -zxvf php-7.2.18.tar.gz
进入php-7.2.18目录
yum install libxml2 libxml2-devel openssl openssl-devel libcurl libcurl-devel libjpeg libjpeg-devel libpng libpng-devel freetype freetype-devel libmcrypt libmcrypt-devel -y
./configure --prefix=/usr/local/php --with-config-file-path=/usr/local/php --enable-mbstring --enable-ftp --with-gd --with-jpeg-dir=/usr --with-png-dir=/usr --with-mysql=mysqlnd --with-mysqli=mysqlnd --with-pdo-mysql=mysqlnd --without-pear --disable-phar --enable-sockets --with-freetype-dir=/usr --with-zlib --with-libxml-dir=/usr --with-xmlrpc --enable-zip --enable-fpm --enable-xml --enable-sockets --with-gd --with-zlib --with-iconv --enable-zip --with-freetype-dir=/usr/lib/ --enable-soap --enable-pcntl --enable-cli --with-curl
或者把config-file-path指定到etc下，即
./configure --prefix=/usr/local/php \ --with-config-file-path=/usr/local/php/etc \ --with-curl \ --with-freetype-dir \ --with-gd \ --with-gettext \ --with-iconv-dir \ --with-kerberos \ --with-libdir=lib64 \ --with-libxml-dir \ --with-mysqli \ --with-openssl \ --with-pcre-regex \ --with-pdo-mysql \ --with-pdo-sqlite \ --with-pear \ --with-png-dir \ --with-jpeg-dir \ --with-xmlrpc \ --with-xsl \ --with-zlib \ --enable-fpm \ --enable-bcmath \ --enable-libxml \ --enable-inline-optimization \ --enable-mbregex \ --enable-mbstring \ --enable-opcache \ --enable-pcntl \ --enable-shmop \ --enable-soap \ --enable-sockets \ --enable-sysvsem \ --enable-xml \ --enable-zip
make
make install
源码安装完成后，大概显示如下
Installing shared extensions: /usr/local/php/lib/php/extensions/no-debug-non-zts-20160303/ Installing PHP CLI binary: /usr/local/php/bin/ Installing PHP CLI man page: /usr/local/php/php/man/man1/ Installing PHP FPM binary: /usr/local/php/sbin/ Installing PHP FPM defconfig: /usr/local/php/etc/ Installing PHP FPM man page: /usr/local/php/php/man/man8/ Installing PHP FPM status page: /usr/local/php/php/php/fpm/ Installing phpdbg binary: /usr/local/php/bin/ Installing phpdbg man page: /usr/local/php/php/man/man1/ Installing PHP CGI binary: /usr/local/php/bin/ Installing PHP CGI man page: /usr/local/php/php/man/man1/ Installing build environment: /usr/local/php/lib/php/build/ Installing header files: /usr/local/php/include/php/ Installing helper programs: /usr/local/php/bin/ program: phpize program: php-config Installing man pages: /usr/local/php/php/man/man1/ page: phpize.1 page: php-config.1 Installing PDO headers: /usr/local/php/include/php/ext/pdo/
开始配置php.ini，使用php --ini查看，可能获得以下结果，也可能除了第一个外都为null
Configuration File (php.ini) Path: /usr/local/php/etc Loaded Configuration File: /usr/local/php/etc/php.ini Scan for additional .ini files in: (none) Additional .ini files parsed: (none)
我们需要把php.ini等配置文件复制到相关的路径，注意是在当前目录，即php-7.2.18目录
cp php.ini-production /usr/local/php/lib/php.ini
或者我们实际上是复制到这里
cp php.ini-production /usr/local/php/etc/php.ini
在init.d中添加php-fpm服务命令
cp sapi/fpm/php-fpm /etc/init.d/php-fpm
添加执行权限
chmod +x /etc/init.d/php-fpm
配置php-fpm文件
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
设置环境变量，在最后方加上
vi /etc/profile
export PATH=/usr/local/php/bin:$PATH
刷新更改
source /etc/profile
启动php-fpm
/etc/init.d/php-fpm
我们修改php-fpm的配置文件，把/usr/local/php/etc/php-fpm.conf中的pid注释打开了
pid = run/php-fpm.pid
查看php-fpm master 主进程
ps aux|grep php-fpm
重启php-fpm
kill -USR2 42891
此后，在/usr/local/php/var/run/文件夹下就会多了php-fpm.pid文件，显示进程后，则我们可以使用以下来重启php-fpm了
kill -SIGUSR2 `cat /usr/local/php/var/run/php-fpm.pid`
kill -USR2 `cat /usr/local/php/var/run/php-fpm.pid`
关闭php-fpm
kill -INT `cat /usr/local/php/var/run/php-fpm.pid`
关闭后需要再启动，则使用以下
etc/init.d/php-fpm