When comparing RedBeanPHP vs Paris Orm, the Slant community recommends RedBeanPHP for most people. In the question“What are the best PHP ORMs?” RedBeanPHP is ranked 1st while Paris Orm is ranked 11th. The most important reason people chose RedBeanPHP is:
It requires basically nothing except database credentials making it awesome to use.
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Pros
Pro Zero configuration
It requires basically nothing except database credentials making it awesome to use.
Pro Great for rapid development/prototyping
Since it employs a strategy of zero configuration, it can create all required databases and tables on the fly. Making it a great ORM to use when quickly prototyping a product.
Pro SQL extensions
Offers additions to SQL that makes querying very easy.
Pro CLI applications can be written in no time
You can generate CLI applications in no time as well.
Pro Stable
As the code hasn't been drastically changed in the past few years, there is no further learning required once its been learned once.
Pro Simple
Paris (and idiorm) is designed to be helpful on the simple tasks that would require a lot of code, then to get out of the way for complex tasks.
Pro Well documented
For such a simple ORM, its well documented.
Pro Fast
Only 2 files to load.
Pro Small
Paris Orm is a single file that sits on top of Idiorm which is also a single file.
Pro Framework Agnostic
Because of the small size, it can be attached to any framework or used by itself.
Cons
Con Not suitable for existing projects with a custom database
Since RBP has a no-config approach, it enforces pretty strict database conventions. This does not make it a good ORM for an existing custom database.