安裝php依賴元件（包含Nginx依賴）：
yum -y install wget vim pcre pcre-devel openssl openssl-devel libicu-devel gcc gcc-c++ autoconf libjpeg libjpeg-devel libpng libpng-devel freetype freetype-devel libxml2 libxml2-devel zlib zlib-devel glibc glibc-devel glib2 glib2-devel ncurses ncurses-devel curl curl-devel krb5-devel libidn libidn-devel openldap openldap-devel nss_ldap jemalloc-devel cmake boost-devel bison automake libevent libevent-devel gd gd-devel libtool* libmcrypt libmcrypt-devel mcrypt mhash libxslt libxslt-devel readline readline-devel gmp gmp-devel libcurl libcurl-devel openjpeg-devel 
建立使用者群組，并下載下傳php安裝包解壓
[root@48 src]# groupadd www
[root@48 tmp]# useradd -g www www
[root@48 src]# wget http://am1.php.net/distributions/php-7.2.4.tar.gz
[root@48 src]# tar xvf php-7.2.4.tar.gz
[root@48 src]# cd php-7.2.4 設定變量并開始源碼編譯：
cp -frp /usr/lib64/libldap* /usr/lib/
./configure --prefix=/usr/local/php --with-config-file-path=/usr/local/php/etc --enable-fpm --with-fpm-user=www --with-fpm-group=www --enable-mysqlnd --with-mysqli=mysqlnd --with-pdo-mysql=mysqlnd --enable-mysqlnd-compression-support --with-iconv-dir --with-freetype-dir --with-jpeg-dir --with-png-dir --with-zlib --with-libxml-dir --enable-xml --disable-rpath --enable-bcmath --enable-shmop --enable-sysvsem --enable-inline-optimization --with-curl --enable-mbregex --enable-mbstring --enable-intl --with-mcrypt --with-libmbfl --enable-ftp --with-gd --enable-gd-jis-conv --enable-gd-native-ttf --with-openssl --with-mhash --enable-pcntl --enable-sockets --with-xmlrpc --enable-zip --enable-soap --with-gettext --disable-fileinfo --enable-opcache --with-pear --enable-maintainer-zts --with-ldap=shared --without-gdbm --with-apxs2=/usr/local/apache2/bin/apxs 若無報錯執行下一步安裝，如果編譯過程中出現錯誤，根據報錯安裝依賴包，通常不會出現這種問題。
注意：–enable-gd-jis-conv 此參數會導緻Zabbix中文字元亂碼，建議取消。
開始安裝：
[root@48 php-7.2.4]# make -j 4 && make install
完成安裝後配置php.ini檔案：
cp php.ini-development /usr/local/php/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 修改 php.ini 相關參數
vim /usr/local/php/etc/php.ini
expose_php = Off
short_open_tag = ON
max_execution_time = 300
max_input_time = 300
memory_limit = 128M
post_max_size = 32M
date.timezone = Asia/Shanghai
mbstring.func_overload=2
extension = "/usr/local/php/lib/php/extensions/no-debug-zts-20170718/ldap.so"
#OPcache 緩存
[opcache]
zend_extension=/usr/local/php/lib/php/extensions/no-debug-zts-20170718/opcache.so
opcache.memory_consumption=128
opcache.interned_strings_buffer=8
opcache.max_accelerated_files=4000
opcache.revalidate_freq=60
opcache.fast_shutdown=1
opcache.enable_cli=1
#設定php安全函數
disable_functions = passthru，exec，system，chroot，chgrp，chown，shell_exec，proc_open，proc_get_status，popen，ini_alter，ini_restore，dl，openlog，syslog，readlink，symlink，popepassthru
#配置www.conf
listen = /var/run/www/php-cgi.sock
listen.owner = www
listen.group = www
listen.mode = 0660
listen.allowed_clients = 127.0.0.1
pm = dynamic
listen.backlog = -1
pm.max_children = 180
pm.start_servers = 50
pm.min_spare_servers = 50
pm.max_spare_servers = 180
request_terminate_timeout = 120
request_slowlog_timeout = 50
slowlog = var/log/slow.log 建立php-cgi.sock存放目錄
[root@48 php-7.2.4]# mkdir /var/run/www/
[root@48 php-7.2.4]# chown -R www:www /var/run/www
配置php-fpm.conf
vim /usr/local/php/etc/php-fpm.conf
取消以下注釋并填寫完整路徑：
pid = /usr/local/php/var/run/php-fpm.pid
至此php7已經安裝完成。
建立system系統單元檔案php-fpm啟動腳本：
vim /usr/lib/systemd/system/php-fpm.service
[Unit]
Description=The PHP FastCGI Process Manager
After=syslog.target network.target
[Service]
Type=simple
PIDFile=/usr/local/php/var/run/php-fpm.pid
ExecStart=/usr/local/php/sbin/php-fpm --nodaemonize --fpm-config /usr/local/php/etc/php-fpm.conf
ExecReload=/bin/kill -USR2 $MAINPID
[Install]
WantedBy=multi-user.target