需要安装php zip，但
aptitude install php7.2-zip
No candidate version found for php7.2-zip
No candidate version found for php7.2-zip
No packages will be installed, upgraded, or removed.
apt-get安装也不起作用
Package php7.2-zip is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
E: Package 'php7.2-zip' has no installation candidate
在过去的几个小时内没有找到任何有助于许多论坛的内容。
操作系统： Ubuntu 14.04.6 LTS