how to best structure application in symfony 2 - php

I started using Symfony 2 after having experience with 5 php frameworks like Zend, CodeIgniter, Fuel, Yii and Cake. I am very confused on how to structure my project as better as I can. First of all I am confused in working with bundles. Bundles are some kind of modules used in other frameworks? Bascially I have my application and everything until now is stored in a bundles. If I want to make some helper functions and some libraries and abstract classes, I just make a new bundle for those?

See the Bundle Structure and Best Practices cookbook entry for basic ideas on the structure of a bundle.
I recommend having just one app specific bundle. I call it AppBundle.
Also, you don't have to have everything in bundles. Check this question for details.

Lots of other discussions on that matter:
Should everything really be a bundle on Symfony 2?
Confused with symfony2 bundles

Related

Admin Routes (Nested Controllers or Bundles)

I'm studying the Laravel 3, 1 week ago, but didn't understand everything about the routes.
My main question is: how to create administrative routes?
In the video lessons from Jeffrey Way (Tuts Premium), I could understand two things about it:
Nested Controllers (/application/controllers/admin/user.php)
Bundles (/bundles/user.php) - He did not say much about it.
Anyway, I noticed 2 things (obvious):
On both sides, I can have a route / admin / whatever.
But what the correct way?
I'm really very confused.
Laravel bundles are for developing modular code that you can reuse from application to application in Laravel. The Bundle itself is very much the same as the 'application' directory you have as standard in a Laravel install, allowing you to create modular sub applications within your project. I highly recommend you avoid bundles for the moment entirely and focus on learning the core functionality of Laravel.
For your needs, place your routes within your routes.php file within the application directory and nest them to your hearts content. This will serve your purposes fine. If you're not building/using bundles, you don't need to use bundle routes.
When you're comfortable with Laravels routing and you've built one or two apps you may well have an idea for a bundle that will help you develop your apps faster in the future. This is the time to start learning about bundle routing as it's the only way to link your application logic with your bundle and provide it with a URL schema.
Hope that helps.
Neither way is really right or wrong, the beauty of Laravel is that there are so many ways to achieve the same thing so it's up to the developer to choose what works for them.
Personally I started by using nested controllers as they're much easier to get up and running. I would however recommend making the move to bundles. If you plan on sticking with Laravel (and you should) then it would make sense to build a bundle that includes the auth and components you use in each project already setup. That way you just need install the bundle and you're good to go.

Is there any symfony2 tutorail for complex web application

I have to develop complex web application in symfony 2 where i have 20 database entites and many to many relationships.
I am experienced programmer but i am new to this symfony and OOP.
Is there any tutorial where i i can see many entitties and repositories and thier relationship as an example to start with
thanks
KnpBundles.com is rather complex and available on github.
LilaConceptsBestPracticeBundle is another great bundle showing Symfony 2.1 best practices (covering integration with Travis CI, Code styles fixer, Composer, etc).
I highly recommend these for everybody who is looking for best-practices (like me). :)
I don't know of any very complex tutorials of Symfony2 yet made to the public, but here are some good ones that helped me start out when I was first learning Symfony2:
1) Symblog: http://tutorial.symblog.co.uk/
2) Jobeet: http://sftuts.com/doc/jobeet/en/starting-up-the-project
But I probably learned the most from just reading over the thorough the book/cookbook available on the symfony2 website: http://symfony.com/doc/current/book/index.html
Symfony2 is strictly object oriented, so you might want to read up on OOP as well if you're new to the concept.

The difference between Symfony and Silex

I would like to try Silex but i've some questions.
I know to use Symfony2 and i would like to know if Silex is very different of Symfony or it's the same thing (same operation, same code... ) ?
Moreover, Silex is recommanded for small PHP projects and Symfony for medium or big projects , it's true ?
A few things worth noting:
Silex is based on the Symfony2 components, just like the Symfony2 framework is. As such, it can be considered an alternative user interface to the components (the user being a web developer).
Since they use the same basis, migration between them should be relatively easy.
Just like Symfony2, Silex is mostly a controller framework. It provides you with some structure, but the model and view parts are handled by third-party libraries (such as Twig or Doctrine).
Since your business logic should not be in your controllers anyway, if you separate that code out and keep your controllers light, the limiting factor in terms of project size will only be the amount of routes you have.
That said, Silex will not give you the bundles that Symfony2 has.
Here are some interesting thoughts on when to use Silex (especially in the comments):
https://web.archive.org/web/20160131151109/http://www.testically.org/2011/10/11/is-there-a-specific-situation-when-to-use-a-php-micro-framework-like-silex/
Silex itself is pretty bare, which means that if you want more then just routing and tests you will need to add specific features (DB, Twig ...) in form of Services.
I recommend to take a look at some readymade Plates that provide you with this:
https://github.com/lyrixx/Silex-Kitchen-Edition
or
https://github.com/ivoba/superleansilexplate (thats mine :))
Another point is that Silex has a probably lighter footprint than Symfony2, so if you need a smaller & faster site, Silex is worth a consideration.
(UPDATE) Since Symfony 2.8 You can use symfony 2 as a microframework with a micro kernel controller. See short description here: symfony.com/blog/new-in-symfony-2-8-symfony-as-a-microframework. Now Symfony gives us more control over the structure and architecture. Good alternative to Silex if You prefer the Symfony 2 style.
Comparing Silex to Symfony before 2.8 release
Silex microframework is based on Symfony but it's not exactly the same thing. Using a full-stack framework such as Symfony for a small project is simply overkilling the project.
In a microframework, you have more flexibility to choose the tools you want to use. You can make more decisions about application architecture and logic.
In a full-stack framework with some extend you would have an architecture and a logic already predefined with restrictions and limitations to its configuration.
Silex was designed to build up the tool rather than get the set tools that you might not need. I would say that for small projects in Symfony you would have to remove features - were in Silex you would have to add them.
It is also not true that Silex isn't fit for larger projects. Silex can be used with success for larger projects but remember that you would have to build up your tools to fit your requirements (if you need to customize the architecture and logic - perhaps this is the right way to go). Other than that, I would consider using Symfony instead, because Symfony already has bunch of tools available out of the box.
Bear in mind that:
To conclude, Silex is good for smaller applications and for those, it can surely replace Symfony. Silex can also be used for larger projects (but for larger applications I would recommend to use full-stack framework instead, like Symfony).
Reference for slides at: http://www.slideshare.net/dustin.whittle/silex-from-micro-to-full-stack . If you feel like it, go ahead and read some more about the Silex framework.
I also recommend watching this intro comparing Silex to Symfony: https://www.youtube.com/watch?v=RDVtnsoOysE.
Again, a few Pro for using Silex coming from people who actually use it: https://www.youtube.com/watch?v=OJcdHGJFfLU
Silex is good for small projects, but it can be used for big projects as well. What I like the most of Silex is that I have complete control over my project structure but it's my responsibility if my project is well organized or not.
Also I recommend it over symfony if like me, you moved your application logic to the client side using a JS framework. For me it feels an overkill to use symfony only to serve a few json requests.
Silex is based on the independent Symfony2 components and isn't truly considered a full-stack web application framework like Symfony is. You should only use it for very small projects that only require a few files, or you'll outgrow it pretty quickly.
Silex is a great framework for small as well as big applications. Giving structure to the project is your responsibility in Silex. As the project becomes larger, you can nicely integrate symfony components into it although the documentation for the symfony provider is not so good especially for symfony security component.
Silex is great for prototyping projects. If you know you will be using most of the symfony components then go for symfony because you will end up with integrating almost all symfony components into silex.
In my case I needed speed right out of the box and silex provided me with the speed and although I am using most of the symfony components, it is a lot faster than symfony out of the box.
At the moment I write this, Silex is in maintenance mode and it's end of life occured in June 2018.
Which means you shouldn't use it anymore for new projects.
They recommend you to use Symfony 4 instead.
Silex was really good and fast (maybe faster than symfony 4 for simple requests/requirements), but SF4 may bring some new stack and benefits to our applications.
Update: However, in all of my attempts on migrating from Silex to Symfony 4, the simple services took 4x times more to respond no matter what I do. Silex seems to do a much better job for simple micro services.
Silex is a PHP microframework. It is use for the small project.The coding style of the symfony and the silex is almost similar to the symfony.But the symfony is use for the large projects

Using an entire Symfony 2 app as a plugin for native php project?

I have an old project which I want to add user management to.
Symfony has the FOSUserBundle which makes user straightforward.
Is there a way to integrate Symfony in the old project so that I can benefit from the UserBundle?
This question is extremely hard to answer without specific details of the existing project. We have no idea how the project was constructed. Is it all spaghetti code? Is it MVC based? Is it using an existing framework?
If you're asking if somehow Symfony2 and FOSUserBundle can somehow be shoehorned into your project - I doubt it. A number of Symfony2's features can be used as stand alone libraries, but bundles, and therefore FOSUserBundle, are tightly coupled with Symfony2's MVC stack.
You need to ask yourself if you're willing to rewrite your project using Symfony2. If you're not, then you need to find another solution for user management that will work with what you've already got setup.

Symfony2 Bundle System

I'm just working through the Symfony2 Bible and I'm a little stuck on the bundle system. It is a great feature but I'm not quite sure how to split my flat PHP application into bundles. It's my first time splitting my PHP code into a full featured MVC framework.
I'm working on a few online games (based on PHP) but how would I define the bundles ? Is it like one single onlinegame1 bundle with all the controllers and functions - Or like a login bundle, a register bundle, a war bundle - summarized one bundle for every single PHP file I got ?
I want to start clean and correct but I'm not quite sure if I understand that feature.
You could think of bundle as an independent reusable component - in most of the cases at least.
Let's imagine a personal blog website. I'd split it into ArticleBundle, UserBundle, CommentBundle and finally MainBundle which would stick all these other bundles together, creating your website. The main point is that you can take for example ArticleBundle and reuse it easily on other project without it being tied to any other bundle.
From Symfony2 book:
A bundle is similar to a plugin in other software, but even better.
The key difference is that everything is a bundle in Symfony2,
including both the core framework functionality and the code written
for your application. Bundles are first-class citizens in Symfony2.
This gives you the flexibility to use pre-built features packaged in
third-party bundles or to distribute your own bundles. It makes it
easy to pick and choose which features to enable in your application
and to optimize them the way you want.

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