What is a Symfony? A review of the powerful Symfony framework

When it comes to web design and building a website, there are many options from different frameworks and platforms like Laravel to content management systems such as WordPress or Joomla that can help you do this. What features each of these platforms do and on what basis they work is one of the important issues that you should consider. Likewise, the services that these platforms give you will be one of the main pillars of their choice. It is clear that some of these frameworks and platforms are superior to others and some are in lower ranks. In this article, we intend to introduce you to one of the high-end frameworks, Symfony.

Symfony is one of the frameworks that owes most of its power to a programming pattern called the model-view-controller method, and it is necessary to talk a little more about this method before we see what Symfony is.

What is MVC?

MVC is a design pattern and method of building web applications and internet sites, by using which programmers can use an isolation feature for different website modules. In fact, it is extremely difficult to explain what MVC is because of the different implementations of it by different frameworks, but in general, this programming method is a pattern that uses a specific and consistent method to manage requests on the web.

Design Patterns are methods for programming that have become a principle due to their practicality and widespread use. They have become almost standard and are used by many programmers. In the case of MVC, the story is the same, and the use of this design technique has led to the creation of a series of specific and fixed instructions to organize your web application with a specific configuration and improve its performance.

An application written in MVC has three main members. These members are the model, which is represented by the letter M in the name, the view, which is related to V, and a controller, which is represented by the letter C. Each of these members has a specific duty. The general process of this program is that the view section communicates with the user, the model is related to the modules that work with the database of our system, and the controller has an intermediate role that controls the connection between the model and the view. Meanwhile, the direction of information is two-way and when the user’s information reaches the control through the view, the controller separately takes what is needed from the model and sends it to the view so that the view can deliver it to the user.

To better understand this issue, we need to follow the work with an example. Consider a site written in MVC that a user is working with. Here, our view unit is the HTML and CSS codes that display the site to the user and receive relevant information from it. When the desired requests and relevant information from the user reach the site through the Internet platform, View receives them and provides them to the controller, the controller sends this information to the model with its own methods and stores the model. After this operation, the information related to confirmation has reached the controller through the model, and the controller displays this information to the user through the view.

If this question has arisen for you, what is the reason for using this method at all and why should this long path be taken, we must say that MVC provides very good capabilities to programmers. Using this method, you create a modular situation on your system that separates the view section from the model and database section. In this case, you can easily change the view and change the appearance of your site, both visually and technologically, without changing the main structure and functionality of the site.

By using MVC programming, you will even be able to have two or more views for your web site and application and, for example, serve your users using both a web portal and an application. There are many platforms that implement MVC capabilities for you. Some of these frameworks and platforms work in such a way that they only have these three members: model, view, and controller, and others, like Symphony, use more members. In the following, we will talk in detail about what Symfony is and how it helps us.

What is a symphony?

Symfony is a website building framework based on the PHP programming language, which has been developed to use ready-made PHP language libraries and modules. This powerful framework, which has many successful content management systems and sites in its resume, officially started its work for the first time in 2005 under the MIT Free Software License.

Based on what the designers and providers of this system have said about it, if we want to say what the main goal of Symfony is, we can point out that this framework was created with the aim of speeding up the production and maintenance of web-level applications. Likewise, by using the correct and practical codes and using the many libraries it has, it is supposed to design robust web applications, which refers to programs that have no weak points and can easily manage all of them under high load pressure. Generally, robust programs are programs that are made with formal and mathematical methods and there is certainty in them, and you can be sure that the work that was asked of the program has been done and will not encounter errors.

By using features like MVC programming and giving the programmer full authority to change the code as needed, Symfony provides a wide working field that can be used for any task. Almost everything in the Symfony framework, from the innermost layers and libraries, to the outer layers and the user interface, can be changed and edited. There are many features in Symfony’s design that have made it so large.

What are Symfony versions?

It took a long time from the time Symfony was introduced until it released its first new version, and the first 5 years of this framework went with a fixed schedule. Maybe if this system had a better performance at this time, it would have reached a much higher position now. However, Symfony is not a static system. Because with careful and timely planning that he started in 2007, he was able to go ahead of other platforms.

Symfony has adopted a time-based policy for providing its new versions, which provides new versions with its updates at specific time periods, although there are also stable versions that last longer. As we mentioned, the first new version after the original version of this framework was released in 2007 and was called Symfony 1.0.

In this version, PHP versions before PHP5 were used and this version was released as a stable version for three years with full support. In June 2008, the next version of this framework named 1.1 was released, in this version, new security extensions were added, and the subsequent versions were provided in one-year periods, in each of these versions, compatibility with new versions of PHP and Items related to security issues were updated. Another major overhaul of Symfony was version 2.0, which was released in 2013 after version 1.4.

Many things were changed in this version, but this version was not considered as a stable version and long-term support was not provided. Instead, the providers of Symfony considered an 8-month time frame for its updates, which are still using the same method and releasing updates to This is the case.

The next stable version was 2.3, which was released in 2013 and was considered a major version until 2016. After that, it was replaced by version 2.7, which was released in 2015. The latest version of Symfony is version 5.2, which was released in November 2020, and according to the announcement made by Symfony, the new version will be released in the next few weeks (at the time of writing this article, which is the beginning of May 2021). Slow

The latest supported stable versions of this program at the time of writing this article are version 4.4 released in 2019 and version 5.2 released in November 2020. Each of these versions has its own features and capabilities that are better than the previous versions. Of course, this improvement is not general and in many changes of these versions there are fixed features and some cases have changed. Usually, the updates that are released on a schedule are like this and not necessarily all the items will change in them.

What are the features of Symphony?

In this section, we want to examine the features of this framework that have made Symfony stand out as a powerful and practical framework in programming communities and can easily handle heavy projects implemented with it.

Using MVC

One of the best features and capabilities of Symfony is the use of MVC programming, which we introduced in full at the beginning of this article. Regarding this feature in Symphony, it should be said that MVC can implement various functions for you, using which you will have a professional and completely editable program for yourself.

As we have seen, what this service does for you is that it creates a relative independence in different parts of your web application, which helps you make changes in the application wherever you want and be sure that No damage to other parts. Another thing that we didn’t check about MVC is the additional features that this service will have for you and you can automatically use these programs by using it.

Appropriate development

This platform is always developing and you can be sure that you will not be left behind by new technology. As soon as a new feature in PHP programming or a specific design pattern is presented, it will be on the team’s agenda and in the worst case, it will be released with a new update within 8 months. Of course, special and important features are released as patches and new stable versions outside the schedule.

In general, Symfony has always proven to be a professional system that expands as one of its main goals, and it has also provided the possibility for its users to develop their applications and sites well using it.


While many frameworks suffer from the lack of features that others have, and their users feel these shortcomings completely, Symfony is one of the frameworks that offers good innovations and is considered one of the creative systems in this field.

Dynamic and extensible nature for users

You can expand your web applications as much as you want and there will be no limits for you. This is despite the fact that some systems may encounter many problems if they are enlarged to different sizes. There are frameworks and platforms that may degrade in performance if the content of the site and web application is overextended.

high security

Another feature that was very important for Symfony and has always been considered is compliance with rules that increase the security of this system. Usually, the systems designed with Symfony use features such as Doctrine, which is a professional and powerful library for working with databases, and by benefiting from its facilities, it has almost been able to reduce the possibility of attacks such as SQL code injection to zero.

Template Engine or Template Engine

When the MVC architecture is used to build a web application, one of the main elements used in it is the template engine, which allows you to easily customize the template of your site using a PHP file. Edit the corresponding View that you have activated MVC.

What are the disadvantages of Symfony?

This framework does not lack anything in terms of basic features and for expanding a platform. But there are cases that can be considered as a negative case in this regard. Next, we will talk about what these disadvantages are.

Efficiency and Performance

This big system can get a bit complicated and in some cases the final visit and what the system does for us is not as good as expected. The efficiency of this system is better compared to similar frameworks such as Zend, but it is less than other frameworks such as Laravel.

Weakness in Real Time programs

Another weakness of Symfony is the lack of proper support and service in Real Time services. Real-time systems are systems that allow the user to see the reaction of the request to the site in real time and the system to act on it in real-time.

In these systems, you cannot have a system that provides you with real-time certainty, and for this reason, Symfony is generally not used to build social networks and related matters.

Difficulty when starting

Symfony can be a bit confusing for newcomers. For a professional programmer who uses all kinds of code and implements his purpose, working with this system is one of the ideal situations, but when you want to start working with it and are inexperienced in using such platforms, at first Generally, you will encounter a difficult system that does not work based on other systems and has its own routine.

Although there is a complete tutorial for this system, it won’t help you much to get started and it can seem a bit confusing.

Modules are hard to find

In this system, there is no reference that provides you with all Symfony modules and if you are looking for a specific module, you can easily download it from there. You should note that if you need a module for the system you are programming and designing with Symfony, you need to search for it directly on Google.

Of course, the variety of search methods and the abundance of methods used by the providers of Symfony modules is a kind of problem and has made it extremely difficult to find these modules.


In general, in response to the question of what is Symfony, we must say that it is a free, powerful and professional platform that uses the latest MVC programming method and with the good features it gives us, it enables the production of a web application with PHP language and we can be sure. This platform is suitable for any case. In this article, by examining the features of this framework, we saw how it works and what kind of programming should be used to get the best quality from this system. Of course, it should be noted that if you want to use a suitable and simpler service, you can also visit Laravel.

Comment here