虚包：php-psr-log-implementation
This is a virtual package. See the Debian policy for a definition of virtual packages.
负责填实 php-psr-log-implementation 的软件包
- php-monolog
- send logs to various destination and web services
- php-symfony
- set of reusable components and framework for web projects
- php-symfony-console
- run tasks from the command line
- php-symfony-http-kernel
- building blocks for flexible and fast HTTP-based frameworks