Ubuntu服务器配置Lnmp环境和安装相应的PHP扩展：
先更新源：
apt update
apt-get update
1.Ubuntu下编译安装Nginx
Nginx官方下载地址：
http://nginx.org/en/download.html
我选择的是
http://nginx.org/download/nginx-1.18.0.tar.gz
下载后进行解压，然后先安装编译需要的依赖：
apt-get install libpcre3g
apt-get install libpcre3-dev
apt-get install zlib1g-dev
apt-get install libssl-dev
apt-get install build-essentialapt-get install openssl libssl-dev
编译前修改nginx版本号，名称。
/nginx(源码)/src/core/nginx.h
\#define nginx_version 1008001
\#define NGINX_VERSION "1.0.19"
\#define NGINX_VER "myth/" NGINX_VERSION
修改src/http/ngx_http_header_filter_module.c（HTTP ResponseHeader）
static char ngx_http_server_string[] = "Server: myth" CRLF;
修改src/http/ngx_http_special_response.c（修改错误页的底部Footer）
static u_char ngx_http_error_tail[] =
"<hr><center>myth</center>" CRLF
"</body>" CRLF
"</html>" CRLF
隐藏版本号
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http {
server_tokens off;
}
进行编译和安装，根据自己的实际环境和需求进行编译安装即可。
./configure
--prefix=/usr/local/nginx
--with-http_ssl_module
--with-openssl=
--with-http_realip_module
make
make install
2.Ubuntu下编译安装PHP：
PHP7.1版本下载：
wget http://am1.php.net/distributions/php-7.1.4.tar.gz
PHP7.3版本下载
wget https://www.php.net/distributions/php-7.3.18.tar.gz
下载后进行解压，然后先安装编译需要的依赖：
apt-get install libxml2 libxml2-dev
apt-get install openssl
apt-get install libssl-dev apt-get install libgtk2.0-dev
apt install libzip-dev
apt-get install libcurl4-gnutls-dev
apt-get install libbz2-dev
sudo apt-get install libbz2-dev
sudo apt-get install libjpeg-dev
apt-get install libmcrypt-dev
apt-get install mcrypt
apt-get install curl
apt-get install libcurl4-gnutls-dev
apt-get install autoconf
apt-get install libcurl4-openssl-dev
进行编译安装，根据自己的实际需求进行配置
./configure
--prefix=/usr/local/php
--with-fpm-user=www
--with-fpm-group=www
--with-config-file-path=/usr/local/php/etc
--enable-fpm
--with-gd
--with-jpeg-dir
--with-png-dir
--with-zlib-dir
--with-freetype-dir
--enable-gd-native-ttf
--with-mcrypt
--with-gettext
--with-mhash
-with-pdo-mysql=mysqlnd
--enable-mysqlnd
--enable-shmop
--enable-soap
--enable-sysvmsg
--enable-sysvsem
--enable-sysvshm
--enable-mbstring
--enable-opcache
--enable-fpm
--enable-zip
--enable-bcmath
--with-pear
--with-pcre-dir
--with-bz2
--enable-exif
--with-openssl
--with-libxml-dir
--with-pcre-regex
--with-zlib
--with-iconv-dir=/usr/local/libiconv
--enable-xml
--enable-pcntl
--enable-sockets
--with-xmlrpc
--enable-mbregex
--with-curl
--disable-debug