ubuntu 安裝 php Composer

Step 1:進入安裝目錄

cd /usr/local/bin

Step 2:下載並安裝

 sudo curl -s https://getcomposer.org/installer | sudo php

Step 3:添加執行權限

sudo chmod a+x composer.phar

Step 4:加入全局命令：

mv composer.phar /usr/local/bin/composer 

Step 5:更新，查看版本號

sudo composer.phar self-update

查看版本號

composer --version