下載和安裝

下載並安裝 Composer：

curl -sS https://getcomposer.org/installer | php

All settings correct for using Composer
Downloading...

Composer (version 1.10.13) successfully installed to: /root/composer.phar
Use it: php composer.phar

設定

將下載的 composer.phar 移至環境下，並更名為 composer，即可執行指令 composer：

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

查看 Composer 版本，確認已正確安裝：

composer -V

Do not run Composer as root/super user! See https://getcomposer.org/root for details
Composer version 1.10.13 2020-09-09 11:46:34