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Add to SafariWhen comparing Slim vs Laravel 5, the Slant community recommends Laravel 5 for most people. In the question“What are the best web frameworks to create a web REST API?” Laravel 5 is ranked 8th while Slim is ranked 15th. The most important reason people chose Laravel 5 is:
With migrations, powerful and intuitive Eloquent CRUD, resource routing, and simple JSON response out of the box, a complete REST API can be written in hours.
Specs
Question Ranking
Pros
Pro Well organized and thorough documentation
Slim's documentation is well organized and detailed, every concept is thoroughly explained and it is very helpful for both advanced users and beginners.
Pro A good starting point
Slim is minimal and that is a good thing if you want to start from there. It can be easily extended and even supports popular packages that are used in Laravel (like Illuminate\Database (eloquent)) for example.
Pro REST based
REST fans will love the REST based architecture.
Pro Supports tie-ins for Rack-like middleware
Rack is an interface used in Ruby frameworks used to group and order modules, which most of the time are Ruby classes, and specify between them.
Slim uses a simple concept for it's middleware. By wrapping HTTP requests and responses it unifies the middleware into a single method call.
Pro Useful classes
Contains classes for managing requests, responses, cookies, logging, views, HTTP caching, and more.
Pro Flexible
Slim doesn't demand that you stick to a fixed folder structure. As long as you load Slim the right way you can do anything from there the way you like it.
Pro Extremely lightweight
Paired with swoole it's a micro service powerhouse.
Pro Open source
The Slim Framework is open source and is released under the MIT public license
Pro Extremely customizable
You can add any dependency, package or class that you want to use as a contained dependency.
Pro Supports Php 5.3 and PHP 7
Pro Makes it easy to understand the way some abstract functions and classes are built
In Django most things are abstracted, you just call some function or class without knowing how they were built, but with Slim, you end up understanding the way some abstract functions and classes are built.
Pro Hooks for executing code at different points in its life-cycle
Slim supports code hooks for executing functions at different points in time during the application's lifecycle.
Pro Good for building RESTful APIs
With migrations, powerful and intuitive Eloquent CRUD, resource routing, and simple JSON response out of the box, a complete REST API can be written in hours.
Pro Comes with an excellent built-in ORM
Laravel's Eloquent ORM is a simple and fast Object-Relational Mapping which helps with organizing the application's database. It supports the most popular databases (MySQL, Postgres, SQLite, etc.) out of the box.
Pro Good documentation
Laravel's documentation is thorough and very good. It covers everything and is very helpful to experienced and new users alike.
Pro Handles event queuing
Laravel supports event queuing and it does so in a very simple way. To create an event that should be queued just run:
php artisan handler:event SendPurchaseConfirmation --event=PodcastWasPurchased --queued
This creates a handler that implements the Illuminate\Contracts\Queue\ShouldBeQueued interface. Now when this handler is called it will automatically be queued by the event dispatcher.
Pro Comes with its own CLI
Laravel comes out of the box with it's own CLI called Artisan. With Artisan developers can do several different tasks such as migrating databases, seeding databases, clearing the cache and much much more.
Pro Easy to write web apps with authentication
Laravel comes with Authentication capabilities and a fully-powered Auth class out of the box. For passwords it uses bcrypt.
Pro Easy to learn
Pro Gives developers a great degree of freedom in how they set up their project structure
Laravel allows for free configuration and does not force developers to use a single project structure, instead they can change it to how they wish.
Pro Can use Symfony components
Laravel uses many libraries built for the Symfony PHP framework. Many of these libraries are well-built and have been tested by users before. Since the point of using a web framework is to shorten development time and to avoid reinventing the wheel for problems that have already been solved, then it's logical for a framework to use libraries already built to solve problems that have already been solved.
Pro Extremely powerful template system
Laravel has a powerful template system called Blade. It's quite similar to Twig or Moustache with lots of curly braces but the real power comes from the usage of PHP code directly in the view. Blade templates compile directly to raw PHP and are processed in the server when a request is made.
Pro Gulp tasks in the form of Laravel Elixir
In Laravel 5.0 they added Laravel Elixir, which provides an API for using Gulp tasks for Laravel applications. Elixir supports several CSS preprocessors and even some test tools. But it's still in the early stages of development and it will be developed even further in the following releases. With more methods and more Gulp tasks supported.
Pro Great Ecosystem
Has a great Ecosystem with SAAS like: Forge, Envoyer, Nova & from 3rd parties like oh-dear
Pro Great Community
Cons
Con Very little consistency among different versions
There have been quite some changes that break the compatibility between Slim 2 and Slim 3. Even if you learned how to work with the Slim 2, you will find that Slim 3 requires re-training.
Con Dependency injection is too weak
It is not really dependency injection, but just a configurable container.
Con Needs strong bases to create dependencies
The dependency container schema of Slim is one of the biggest PROS and CONS of the framework. It is true that this schema brings so much flexibility to add anything, but another thing that is true is that you need to have strong bases of patterns, and an extensive knowledge of your libraries to convert it into a Slim dependency.
Con Too minimal
While it's true that Slim is a microframework, it's still too minimal. When used for throwaway projects or simple prototypes, it's perfect. But in the long run, it becomes less and less useful and you end up in implementing a full custom framework in trying to tackle all the missing features.
Con Uses too much magic methods
It complicates debugging and autocompletion.
Con Bloated
While the speed doesn't seem to be an issue with it (on local tests), in production it may be hindered. The framework creates a ton of files and folders, some of which your app might not even use. Not good if you don't like having a ton of folders and rigid non-standard PHP folder structure for development.
Con Hard to use model properties
You need to check all model properties in database to know it exists, or declare all them manually.
Con Steep learning curve
While a lot of times you can write things in plain PHP, it will hinder you down the line when you want to use core features and find that you have to rewrite code which then causes issues throughout the app. Documentation is good, but you need to know what you are looking for and practical examples are non-existent. Many features have been updated throughout the versions in such a short time that tutorials you find online are confusing to sort through outdated tutorials and guides that no longer work or have been depreciated.
Con Poor performance
Con Follows bad design practices
Uses bad practices, like Singletons, Magic models, Middleware.
