编译安装openresty+php7.1
操作系统：CentOS Linux release 7.3.1611 (Core)
第一部分编译安装php以及扩展
1.php的扩展安装
1.1png安装（gd库）
tar zxvf libpng-1.6.26.tar.xz
cd libpng-1.6.26
./configure --prefix=/server/extension/php/libpng
make &make install
1.2jpeg安装（gd库）
tar zxvf jpegsrc.v9.tar.gz
cd jpeg-9/
./configure --prefix=/server/extension/php/libjpeg
make && make install
1.3libiconv（字符编码）
tar zxvf libiconv-1.14.tar.gz
cd libiconv-1.14
./configure --prefix=/server/extension/php/libiconv
make && make install
1.4mhash
tcd
cd mhash-0.9.9.9
./configure --prefix=/server/extension/php/libmhash
make && make install
1.5libmcrypt
tar zxvf libmcrypt-2.5.8.tar.gz
cd libmcrypt-2.5.8
./configure --prefix=/server/extension/php/libmcrypt
make && make install
1.6openssl安装
tar zxvf openssl-1.0.2f.tar.gz
cd openssl-1.0.2f
./config --prefix=/server/extension/php/openssl
make && make install
1.8libxml2
tar zxvf libxml2-sources-2.9.2.tar
cd libxml2-2.9.2
./configure --prefix=/server/extension/php/limxml2
make && make install
1.9 curl 安装
tar zxvf curl-7.46.0.tar.gz
cd curl-7.46.0
./configure --prefix=/server/extension/php/curl --with-ssl=/www/server/extension/php/openssl/
make && make install
1.20freetype
tar zxvf freetype-2.1.10.tar.bz2
cd freetype-2.1.10
./configure --prefix=/server/extension/php/freetype
编译php
./configure \
--prefix=/server/php/php/php7.1 \
--with-config-file-path=/server/php/php7.1 \
--enable-pdo \
--with-pdo-mysql \
--with-mysql-sock=/tmp/mysql.sock \
--enable-opcache \
--enable-cgi \
--enable-fpm \
--enable-sockets \
--enable-mbstring \
--enable-mbregex \
--enable-bcmath \
--enable-session \
--enable-xml \
--enable-zip \
--with-zlib \
--with-gd-dir=/server/extension/gd \
--with-png-dir=/server/extension/libpng \
--with-freetype-dir=/server/extension/freetype \
--with-jpeg-dir=/server/extension/libjpeg \
--with-curl=/server/extension/curl \
--with-mhash=/server/extension/libmhash \
--with-mcrypt=/server/extension/libmcrypt \
--with-libxml-dir=/server/extension/libxml2 \
--with-iconv=/server/extension/libiconv \
--with-zlib-dir=/server/extension/zlib \
--with-openssl=/server/extension/openssl \
注意(有可能遇到)：
1.安装libiconv报错
./stdio.h:1010:1: error: ‘gets’ undeclared here (not in a function)
_GL_WARN_ON_USE (gets, "gets is a security hole - use fgets instead");
先找到stdio.in.h vi $HOME/libiconv-1.14/srclib/stdio.in.h
然后跳到698行,把_GL_WARN_ON_USE (gets, "gets is a security hole - use fgets instead");
#if defined(__GLIBC__) && !defined(__UCLIBC__) && !__GLIBC_PREREQ(2, 16)替换成
_GL_WARN_ON_USE (gets, "gets is a security hole - use fgets instead");
#endif(还有一个endif）
2.
configure: error: Don't know how to define struct flock on this system, set --enable-opcache=no
报错其实是-with-gd-dir写成了--with-gd
3.
新错误（PHP7.1.5）
configure: error: Don’t know how to define struct flock on this system,set –enable-opcache=no
这个错误第一次见到，估计是新版本的问题，也没找到具体解释，，解决方法：
编辑 /etc/ld.so.conf 添加一行/usr/local/lib
保存退出，执行：ldconfig
4.高版本curl报错，修改php.ini(查看手册)
always_populate_raw_post_data = -1
提供一个php扩展git地址：
https://github.com/gophp7/gophp7-ext/wiki/extensions-catalog
5.mongo扩展与memcache扩展
7.1.5php是没有mongo扩展，只有在5.6以上（包含5.6）可以安装
memcache扩展用上面git账号的扩展没有问题，官方包目前未更新
6.5.6的php上安装mongodb扩展不能用v3哦
第二部分编译:openresty
cd openresty-1.11.2.3/
./configure --prefix=/www/server/openresty --with-pcre=/www/pcre-8.38/ --with-openssl=/www/openssl-1.0.2f/ --with-zlib=/server/source/php/zlib-1.2.8
make && make install
注意：如果出现报错类似：You need a C++ compiler for C++ support.，缺少c++编译器
yum install gcc-c++
以上就基本的环境编译，有很多错误不再一一列出了