When comparing Kohana vs Lumen, the Slant community recommends Lumen for most people. In the question“What are the best PHP frameworks?” Lumen is ranked 17th while Kohana is ranked 20th. The most important reason people chose Lumen is:
Since it's basically just a minimal version of Laravel, it can be upgraded to a full Laravel app if the need arises. No need for code changes, just import the code to a new Laravel install.
Specs
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Pros
Pro Lightweight
With no PECL extensions or PEAR libraries to increase it's bloat, Kohana is extremely lightweight and massive libraries are avoided for more consistency and speed.
Pro OOP framework that is extremely DRY
Kohana follows the OOP software paradigm and it strictly enforces the DRY principle, which makes it easier for developers to write clean and maintainable code.
Pro Tools for quick development
Includes tools that help developers to make applications quickly and efficiently. Some of these tools include:
- Translation libraries
- Code profiling
- Form validation
etc...
Pro Open source
Kohana is open source and is released under the BSD license, this means that it can be modified even for commercial purposes.
Pro Low RAM usage
It is as fast as any popular framework, but the RAM usage is really low in comparison.
Pro Easily upgradable to Laravel
Since it's basically just a minimal version of Laravel, it can be upgraded to a full Laravel app if the need arises. No need for code changes, just import the code to a new Laravel install.
Pro Feature rich
Pro Highest performing PHP micro-Framework
Lumen is benchmarked at 100/rps (Requests Per Second) faster than Slim v3, which used to be considered the fastest and most performant micro-Framework to date with the ability to handle 1800/rps. (1900/rps vs 1800/rps respectively).
Pro Easy to use
Cons
Con Poorly documented
Kohana has always been criticized for the poor documentation it has. Some things are not explained with details and some other things are not explained at all.
Con Deprecated PHP Framework
Con Built for smaller tasks like APIs
Con It's based off Laravel and inherits its shortcomings
Lumen inherits many shortcomings of Laravel, such as static proxy classes.
Con Made to work alongside Laravel
Lumen as a framework is at it's full potential when used alongside it's older brother. Lumen was created to be used for microservices alongside Laravel, which is used for more user-facing applications. If a project is already using another framework other than Laravel, it would be better to use another microframework for microservices instead of Lumen.