在Ubuntu中,可通过以下方式管理PHP依赖:
sudo apt update,安装PHP及扩展sudo apt install php或sudo apt install php-<extension-name>,升级sudo apt upgrade,卸载sudo apt remove --purge php。curl -sS https://getcomposer.org/installer | php,移动到全局可执行目录sudo mv composer.phar /usr/local/bin/composer,在项目目录创建composer.json文件,用composer install安装依赖,composer update更新依赖,composer remove <package-name>卸载依赖。sudo apt install php-pear php-dev,再用sudo pecl install <extension-name>安装,安装后在php.ini中添加extension=<extension-name>.so并重启Web服务器。