导读久闻php7的速度以及性能那可是比php5系列的任何一版本都要快，具体性能有多好，建议还是先尝试下再说。如果你是升级或新安装，那你首先需要考虑php7和程序是否存在兼容性，如果程序是基于php5开发的，那么就需要考虑php7是否适合你当前的生产环境，今天我就实操并安装用于生产中。
先安装php依赖包，否则在编译安装php7的过程当中会出现各种报错，安装完成后即可进入下一个环节。
安装扩展包并更新系统内核：
$ yum install epel-release -y$ yum update
安装php依赖组件（包含Nginx依赖）：
$ 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
创建用户和组，并下载php安装包解压：
$ cd /tmp$ groupadd www$ useradd -g www www$ wget http://am1.php.net/distributions/php-7.2.1.tar.gz$ tar xvf php-7.2.1.tar.gz$ cd php-7.2.1
设置变量并开始源码编译：
$ 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 \
若无报错执行下一步安装，如果编译过程中出现错误，根据报错安装依赖包，通常不会出现这种问题。
注意：–enable-gd-jis-conv 此参数会导致Zabbix中文字符乱码，建议取消。
开始安装：
$ make -j 4 && make install
完成安装后配置php.ini文件：
$ 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 相关参数：
$ vim /usr/local/php/etc/php.iniexpose_php = Offshort_open_tag = ONmax_execution_time = 300max_input_time = 300memory_limit = 128Mpost_max_size = 32Mdate.timezone = Asia/Shanghaimbstring.func_overload=2extension = "/usr/local/php/lib/php/extensions/no-debug-zts-20160303/ldap.so"
设置 OPcache 缓存：
[opcache]zend_extension=/usr/local/php/lib/php/extensions/no-debug-zts-20160303/opcache.soopcache.memory_consumption=128opcache.interned_strings_buffer=8opcache.max_accelerated_files=4000opcache.revalidate_freq=60opcache.fast_shutdown=1opcache.enable_cli=1
设置php安全函数:
$ vim /usr/local/php/etc/php.ini默认值：disable_functions =修改为：disable_functions = passthru,exec,system,chroot,scandir,chgrp,chown,shell_exec,proc_open,proc_get_status,ini_alter,ini_alter,ini_restore,dl,openlog,syslog,readlink,symlink,popepassthru,stream_socket_server,escapeshellcmd,dll,popen,disk_free_space,checkdnsrr,checkdnsrr,getservbyname,getservbyport,disk_total_space,posix_ctermid,posix_get_last_error,posix_getcwd, posix_getegid,posix_geteuid,posix_getgid, posix_getgrgid,posix_getgrnam,posix_getgroups,posix_getlogin,posix_getpgid,posix_getpgrp,posix_getpid, posix_getppid,posix_getpwnam,posix_getpwuid, posix_getrlimit, posix_getsid,posix_getuid,posix_isatty, posix_kill,posix_mkfifo,posix_setegid,posix_seteuid,posix_setgid, posix_setpgid,posix_setsid,posix_setuid,posix_strerror,posix_times,posix_ttyname,posix_uname或通配：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
取消以下注释并修改优化其参数：
listen = /var/run/www/php-cgi.socklisten.owner = wwwlisten.group = wwwlisten.mode = 0660listen.allowed_clients = 127.0.0.1pm = dynamiclisten.backlog = -1pm.max_children = 180pm.start_servers = 50pm.min_spare_servers = 50pm.max_spare_servers = 180request_terminate_timeout = 120request_slowlog_timeout = 50slowlog = var/log/slow.log
创建php-cgi.sock存放目录
$ mkdir /var/run/www/$ chown -R www:www /var/run/www
配置php-fpm.conf
取下以下注释并填写完整路径：
pid = /usr/local/php/var/run/php-fpm.pid
至此php7已经安装完成。
说明：禁用php函数，如果程序需要这些函数，可以取消禁止，新手建议忽略此步骤。
创建system系统单元文件php-fpm启动脚本：
$ vim /usr/lib/systemd/system/php-fpm.service添加如下变量内容：[Unit]Description=The PHP FastCGI Process ManagerAfter=syslog.target network.target[Service]Type=simplePIDFile=/usr/local/php/var/run/php-fpm.pidExecStart=/usr/local/php/sbin/php-fpm --nodaemonize --fpm-config /usr/local/php/etc/php-fpm.confExecReload=/bin/kill -USR2 $MAINPID[Install]WantedBy=multi-user.target
启动php-fpm服务并加入开机自启动：
$ systemctl enable php-fpm.service$ systemctl restart php-fpm.service
PHP整个安装过程已经完成。如果你是按照本文安装未成功的，希望你能留言说明错误原因，我将无偿协助你配置。