控制面板->程序->启动和关闭Windows功能
勾选
	适用于Linux的Windows子程序
	Windows PowerShell 2.0

找到ubuntu路径
一般在C:\Users\zhengxm\AppData\Local\Microsoft\WindowsApps下
然后打开cmd执行ubuntu1804.exe config --default-user root
重启子系统就默认用root登入了

wget https://www.php.net/distributions/php-7.3.5.tar.gz
tar xzf php-7.3.5.tar.gz
cd php-7.3.5

sudo apt install -y gcc make openssl curl libbz2-dev libxml2-dev libjpeg-dev libpng-dev libfreetype6-dev libzip-dev libcurl4-gnutls-dev libssl-dev

sudo cp /etc/apt/sources.list /etc/apt/sources.list.backup

#中科大镜像源
deb https://mirrors.ustc.edu.cn/ubuntu/ focal main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ focal main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ focal-updates main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ focal-updates main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ focal-backports main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ focal-backports main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ focal-security main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ focal-security main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ focal-proposed main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ focal-proposed main restricted universe multiverse
deb http://archive.ubuntu.com/ubuntu/ trusty main universe restricted multiverse

#保存之后执行更新命令
apt-get update
apt-get upgrade

./configure --prefix=/usr/local/php  --enable-fpm --with-fpm-user=bandit --with-fpm-group=bandit --with-mysqli --with-pdo-mysql --with-iconv-dir --with-freetype-dir --with-jpeg-dir --with-png-dir --with-zlib --with-libxml-dir=/usr --enable-xml --disable-rpath --enable-bcmath --enable-shmop --enable-sysvsem --enable-inline-optimization --with-curl --enable-mbregex --enable-mbstring --enable-ftp --with-gd --with-openssl --with-mhash --enable-pcntl --enable-sockets --with-xmlrpc --enable-zip --enable-soap --without-pear --with-gettext --disable-fileinfo --enable-maintainer-zts

1）openssl问题，建立软连接
	find /usr/ -name libssl.so
	ln -s /usr/lib/x86_64-linux-gnu/libssl.so /usr/lib
2）configure: error: Please reinstall the libcurl distribution -
	apt-get install -y curl libcurl4-gnutls-dev
	#根据保存信息建立软连接
	sudo ln -s  /usr/include/x86_64-linux-gnu/curl  /usr/include/curl/curl
	sudo ln -s  /usr/include/x86_64-linux-gnu/curl  /usr/include/curl
3）Ubuntu 19.04 PHP 7.3.5 GD库 无法启用 freetype的问题 “freetype-config not found”
	#参考链接
	https://www.doopsky.com/ops/981.html
	#解决方案
	sudo apt install pkg-config
	sed -i "s/freetype-config/pkg-config/g" ./configure
	sed -i "s/freetype-config/pkg-config/g" ./ext/gd/config.m4	
	sed -i "s/FREETYPE2_CONFIG --cflags/FREETYPE2_CONFIG freetype2 --cflags/g" ./configure
	sed -i "s/FREETYPE2_CONFIG --libs/FREETYPE2_CONFIG freetype2 --cflags/g" ./configure

sudo make && make install

sudo echo "PATH=$PATH:/usr/local/php/bin">> /etc/profile 
sudo echo "export PATH">> /etc/profile 
source /etc/profile 

ln -s /usr/local/php/bin/php /usr/bin/php

php -i |grep php.ini

sudo cp php.ini-development /usr/local/php/lib/php.ini

#### 如果安装http2需要安装nghttp2

	wget https://github.com/nghttp2/nghttp2/releases/download/v1.30.0/nghttp2-1.30.0.tar.bz2
	tar -jxvf nghttp2-1.30.0.tar.bz2
	cd nghttp2-1.30.0
	./configure
	make && sudo make install

#### 如果安装--enable-async-redis需要安装hiredis

	wget https://github.com/redis/hiredis/archive/v0.13.3.tar.gz
	tar xzf v0.13.3.tar.gz
	cd hiredis-0.13.3/
	make && sudo make install
	
#### 安装swoole

	wget https://pecl.php.net/get/swoole-4.8.1.tgz
	tar xzf swoole-4.8.1.tgz
	cd swoole-4.8.1
	# 建议使用自己php版本的phpize
		#sudo phpize (ubuntu 没有安装phpize可执行命令：sudo apt-get install php-dev来安装phpize)
		/usr/local/php/bin/phpize
	#如果重新安装新扩展需要清空重新编译
	sudo make clean
	./configure --with-php-config=/usr/local/php/bin/php-config --enable-coroutine --enable-openssl --enable-http2 --enable-async-redis --enable-sockets --enable-mysqlnd
	sudo make -j
	sudo make install
	
#### 配置hiredis

	sudo mkdir /usr/lib/hiredis
	sudo cp /usr/local/lib/libhiredis.so /usr/lib/hiredis
	sudo mkdir /usr/include/hiredis
	sudo cp /usr/local/include/hiredis/hiredis.h /usr/include/hiredis
	sudo vim /etc/ld.so.conf
	文件末尾添加 /usr/local/lib
	sudo ldconfig
	
#### 配置php.ini
	
	extension=swoole
	
#### 升级swoole

	pecl upgrade swoole

# 通过运行以下命令，将所有系统软件包更新为最新版本：

    sudo apt update
    sudo apt -y upgrade

# 升级Ubuntu 20.04/18.04后重新启动建议：

    sudo systemctl reboot

# 添加ondrej PPA存储库

   sudo apt install lsb-release ca-certificates apt-transport-https -y
   sudo add-apt-repository ppa:ondrej/php
# 如果报 sudo: add-apt-repository: command not found 执行以下命令安装
sudo apt-get install software-properties-common

# 在Ubuntu 20.04下安装PHP 8.0

    sudo apt install php8.0

# 安装PHP 8扩展
    
    sudo apt install php8.0-<extension>

    # 一些可用的扩展名如下所示，如：
    
    $ sudo apt install 
    
    php8.0-amqp       php8.0-common     php8.0-gd         php8.0-ldap       php8.0-odbc       php8.0-readline   php8.0-sqlite3    php8.0-xsl
    
    php8.0-apcu       php8.0-curl       php8.0-gmp        php8.0-mailparse  php8.0-opcache    php8.0-redis      php8.0-sybase     php8.0-yac
    
    php8.0-ast        php8.0-dba        php8.0-igbinary   php8.0-mbstring   php8.0-pgsql      php8.0-rrd        php8.0-tidy       php8.0-yaml
    
    php8.0-bcmath     php8.0-dev        php8.0-imagick    php8.0-memcached  php8.0-phpdbg     php8.0-smbclient  php8.0-uuid       php8.0-zip
    
    php8.0-bz2        php8.0-ds         php8.0-imap       php8.0-msgpack    php8.0-pspell     php8.0-snmp       php8.0-xdebug     php8.0-zmq
    
    php8.0-cgi        php8.0-enchant    php8.0-interbase  php8.0-mysql      php8.0-psr        php8.0-soap       php8.0-xhprof
    
    php8.0-cli        php8.0-fpm        php8.0-intl       php8.0-oauth      php8.0-raphf      php8.0-solr       php8.0-xml
    
    例子：
    
    sudo apt install php8.0-cli php8.0-common php8.0-imap php8.0-redis php8.0-snmp php8.0-xml

# 切换版本
    sudo update-alternatives --config php

# 安装phpize
    sudo apt install php8.0-dev
    安装之后文件路径
    /use/bin/phpize8.0

# 查看swoole信息
    php --ri swoole
  
# 关闭 swoole.use_shortname=off
    php.ini、swoole.ini配置文件路径
    /eth/php/*/

php.ini开启openssl、curl扩展
curl.cainfo = "D:\phpstudy_pro\certificate\cacert.pem"
openssl.cafile = "D:\phpstudy_pro\certificate\cacert.pem"

1.下载composer.phar文件  
	https://install.phpcomposer.com/composer.phar

2.将composer.phar移动到与php.exe程序同一个目录，并创建composer.bat
	composer.bat文件添加如下一段内容
	@php "%~dp0composer.phar" %
	
3.为php程序设置为全局-设置环境变量

4.为swoole项目安装Swoole/ide-helper插件
	composer require Swoole/ide-helper