linux快速安装composer

# 镜像容器运行后，在容器内安装 Composer
wget https://github.com/composer/composer/releases/download/2.3.5/composer.phar
chmod u+x composer.phar
mv composer.phar /usr/local/bin/composer
# 将 Composer 镜像设置为阿里云镜像，加速国内下载速度
composer config -g repo.packagist composer https://mirrors.aliyun.com/composer

#解决 出现 Composer install Do not run Composer as root/super user! 得问题
export COMPOSER_ALLOW_SUPERUSER=1 && composer install