方法一、简单安装（通过yum）
1.安装epel-release
1rpm -ivh http://dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-5.noarch.rpm
2.安装PHP7的rpm源
1rpm -Uvh https://mirror.webtatic.com/yum/el7/webtatic-release.rpm
3.安装PHP7
1yuminstallphp70w
方法二、编译安装
1.下载php7
1wget -O php7.tar.gz http://cn2.php.net/get/php-7.1.1.tar.gz/from/this/mirror
2.解压php7
1tar-xvf php7.tar.gz
3.进入php目录
1cdphp-7.0.4
4.安装依赖包
# 直接复制下面一行（不包括本行）
yuminstalllibxml2 libxml2-devel openssl openssl-develbzip2bzip2-devel libcurl libcurl-devel libjpeg libjpeg-devel libpng libpng-devel freetype freetype-devel gmp gmp-devel libmcrypt libmcrypt-devel readline readline-devel libxslt libxslt-devel
5.编译配置（如果出现错误，基本都是上一步的依赖文件没有安装所致）
嫌麻烦的可以从这一步起参考PHP官方安装说明：http://php.net/manual/zh/install.unix.nginx.php
./configure \
--prefix=/usr/local/php \
--with-config-file-path=/etc \
--enable-fpm \
--with-fpm-user=nginx \
--with-fpm-group=nginx \
--enable-inline-optimization \
--disable-debug \
--disable-rpath \
--enable-shared \
--enable-soap \
--with-libxml-dir \
--with-xmlrpc \
--with-openssl \
--with-mcrypt \
--with-mhash \
--with-pcre-regex \
--with-sqlite3 \
--with-zlib \
--enable-bcmath \
--with-iconv \
--with-bz2 \
--enable-calendar \
--with-curl \
--with-cdb \
--enable-dom \
--enable-exif \
--enable-fileinfo \
--enable-filter \
--with-pcre-dir \
--enable-ftp \
--with-gd \
--with-openssl-dir \
--with-jpeg-dir \
--with-png-dir \
--with-zlib-dir \
--with-freetype-dir \
--enable-gd-native-ttf \
--enable-gd-jis-conv \
--with-gettext \
--with-gmp \
--with-mhash \
--enable-json \
--enable-mbstring \
--enable-mbregex \
--enable-mbregex-backtrack \
--with-libmbfl \
--with-onig \
--enable-pdo \
--with-mysqli=mysqlnd \
--with-pdo-mysql=mysqlnd \
--with-zlib-dir \
--with-pdo-sqlite \
--with-readline \
--enable-session \
--enable-shmop \
--enable-simplexml \
--enable-sockets \
--enable-sysvmsg \
--enable-sysvsem \
--enable-sysvshm \
--enable-wddx \
--with-libxml-dir \
--with-xsl \
--enable-zip \
--enable-mysqlnd-compression-support \
--with-pear \
--enable-opcache
./configure --prefix=/usr/local/php --with-config-file-path=/etc --enable-fpm --with-fpm-user=nginx --with-fpm-group=nginx --enable-inline-optimization --disable-debug --disable-rpath --enable-shared --enable-soap --with-libxml-dir --with-xmlrpc --with-openssl --with-mcrypt --with-mhash --with-pcre-regex --with-sqlite3 --with-zlib --enable-bcmath --with-iconv --with-bz2 --enable-calendar --with-curl --with-cdb --enable-dom --enable-exif --enable-fileinfo --enable-filter --with-pcre-dir --enable-ftp --with-gd --with-openssl-dir --with-jpeg-dir --with-png-dir --with-zlib-dir --with-freetype-dir --enable-gd-native-ttf --enable-gd-jis-conv --with-gettext --with-gmp --with-mhash --enable-json --enable-mbstring --enable-mbregex --enable-mbregex-backtrack --with-libmbfl --with-onig --enable-pdo --with-mysqli=mysqlnd --with-pdo-mysql=mysqlnd --with-zlib-dir --with-pdo-sqlite --with-readline --enable-session --enable-shmop --enable-simplexml --enable-sockets --enable-sysvmsg --enable-sysvsem --enable-sysvshm --enable-wddx --with-libxml-dir --with-xsl --enable-zip --enable-mysqlnd-compression-support --with-pear --enable-opcache
./configure \
--prefix=/usr/local/php \
--with-config-file-path=/etc \
--enable-fpm \
--with-fpm-user=nginx \
--with-fpm-group=nginx \
--enable-inline-optimization \
--disable-debug \
--disable-rpath \
--enable-shared \
--enable-soap \
--with-libxml-dir \
--with-xmlrpc \
--with-openssl \
--with-mcrypt \
--with-mhash \
--with-pcre-regex \
--with-sqlite3 \
--with-zlib \
--enable-bcmath \
--with-iconv \
--with-bz2 \
--enable-calendar \
--with-curl \
--with-cdb \
--enable-dom \
--enable-exif \
--enable-fileinfo \
--enable-filter \
--with-pcre-dir \
--enable-ftp \
--with-gd \
--with-openssl-dir \
--with-jpeg-dir \
--with-png-dir \
--with-zlib-dir \
--with-freetype-dir \
--enable-gd-native-ttf \
--enable-gd-jis-conv \
--with-gettext \
--with-gmp \
--with-mhash \
--enable-json \
--enable-mbstring \
--enable-mbregex \
--enable-mbregex-backtrack \
--with-libmbfl \
--with-onig \
--enable-pdo \
--with-mysqli=mysqlnd \
--with-pdo-mysql=mysqlnd \
--with-zlib-dir \
--with-pdo-sqlite \
--with-readline \
--enable-session \
--enable-shmop \
--enable-simplexml \
--enable-sockets \
--enable-sysvmsg \
--enable-sysvsem \
--enable-sysvshm \
--enable-wddx \
--with-libxml-dir \
--with-xsl \
--enable-zip \
--enable-mysqlnd-compression-support \
--with-pear \
--enable-opcache
手动编译libmcrypt：
wgethttps://sourceforge.net/projects/mcrypt/files/Libmcrypt/2.5.8/libmcrypt-2.5.8.tar.gz
tar -zxvf libmcrypt-2.5.8.tar.gz
cd libmcrypt-2.5.8
./configure
make && make install
对PHP的编译过程中，一直报错
configure: error: Don't know how to define struct flock on this system, set --enable-opcache=no
Don't know how to define struct flock on this system, set --enable-opcache=n
最后解决方法：
# export LD_LIBRARY_PATH=/usr/local/mysql/lib
或则执行下面一条命令就行了：【注意，下面这条语句仅对当前命令框有用】
# export LD_LIBRARY_PATH=/lib/:/usr/lib/:/usr/local/lib
6.正式安装
1make&&makeinstall
7.配置环境变量
1vi/etc/profile
在末尾追加
PATH=$PATH:/usr/local/php/bin
exportPATH
执行命令使得改动立即生效
1source/etc/profile
8.配置php-fpm
cpphp.ini-production/etc/php.ini
cp/usr/local/php/etc/php-fpm.conf.default/usr/local/php/etc/php-fpm.conf
cp/usr/local/php/etc/php-fpm.d/www.conf.default/usr/local/php/etc/php-fpm.d/www.conf
cpsapi/fpm/init.d.php-fpm/etc/init.d/php-fpm
chmod+x/etc/init.d/php-fpm
9.启动php-fpm
1/etc/init.d/php-fpmstart
php-fpm 启动报错：
Starting php-fpm [10-May-2018 10:41:21] ERROR: [pool www] cannot get uid for user 'nginx'
[10-May-2018 10:41:21] ERROR: FPM initialization failed
failed
解决方法：
vim /usr/local/php/etc/php-fpm.d/www.conf
user = nobody
group = nobody
设置开机自启动：
1、在/etc/init.d/目录下创建脚本
1vim/etc/init.d/php-fpm
2、更改脚本权限
1chmod775/etc/init.d/php-fpm
3、设置开机启动
1#chkconfig php-fpm on
可用命令 chkconfig 查看开机启动服务列表
问题及处理：
1.配置nginx后.php 文件 提示 not find :
location ~ \.php$ { #开启php解析
root html;
fastcgi_pass 127.0.0.1:9000;
fastcgi_index index.php;
# fastcgi_param SCRIPT_FILENAME script$fastcgi_script_name
改为：
fastcgi_param SCRIPT_FILENAME/usr/local/nginx/html$fastcgi_script_name; #指定路径
include fastcgi_params;
}
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