Symfony is a PHP framework which makes it easier to use the MVC (Model View Controller) mechanism. Is one of the best framework that exist today for the creation of web applications. It was created to be used in version 5 of PHP, since it makes extensive use of the orientation that focuses on this version. The version of Symfony2 requires PHP 5.3.3. Also used Synfony 3 for PHP 7 version.
Web development with Synfony 2, 3 and 4
Symfony2 was created by the company Fabien Potencier, which today remains at the top of the project with a goal focused on improvements that facilitate the usefulness of software development by a Web programmer.
Although Synfony2 can be used for different types of non-web-focused work, this framework was created specifically to improve the development of web applications, offering tools to strengthen and speed up somewhat complex applications.
Symfony2 Freelance Developers
In itself, the symfony2 does not intend to create something new since it refuses concepts and works already executed and inserts them in Sympony to be used by the user.
One of those concepts is that which refers to the integration of one of the framework Most known ORMs within those that were made PHP development companies called "Doctrine", which is responsible for communicating with the database, offering supreme control over them without taking into account that they are talking about MySQL, PostgreSQL, Oracle and other engines, since the vast majority of sentences SQL are not made by the programmer but by Doctrine
With the Doctrine framework, everything related to the data model can be managed. Each model file is really a class, and they are commonly referred to as "entities." So, you just have to take care of creating the entities and Doctrine will generate all the necessary databases and tables, and everything is achieved by placing a simple order on the command line. To enter the data, a subject called “Entity Manager” must be used from the controller.
Another example that can also serve is the inclusion of frameworkTwig, which is a powerful template engine that makes code separation PHP and the HTML achieving notable improvements creating in this way a wide variety of options and a good order and execution of the project.
With the YAML language, which is a direct competence of XML, you can have a huge amount of configuration completely separate from the code, improving clarity and response. If you do not want to work with YAML you can use the configuration files with XML or PHP.
With Symfony you can count on the instructions of the console which are called "Tasks" tasks that allow the execution of commands in the terminal, telling Symfony2 to do what is necessary for what is required and requested, as could be complete generation of the vital programs to do ABMs, work that is cumbersome for some programmers since this means that many codes must be applied for the execution of tasks in different tables.
Another very important benefit is that Symfony2 has a sub framework to work with forms. In this way a class focused on objects of the HTML form is made and once they are made they are only shown and executed.
This indicates that the HTML form is not designed, but programmed using the mechanisms of the framework.
That way you can have all the application forms in one place along with the validations made on the server. With Symfony2 you can implement quite practical and powerful validator objects to improve the security of the data placed by users.
With Symfony2 there is also a large amount of support to shield the site, thus keeping us unconcerned with malicious attacks that exist today such as SQL Injection, XSS or CSRF.
These virtual attacks can already be avoided, making Symfony take care of all of them and attention can be paid to attacks that occur due to misuse of business or bad business decisions.
This is achieved with a website where everything is located where it has to be and the maintenance and correction of errors is easier and above all effective.
Symfony2 has a large number of libraries, tools and aids that allow you to make an application quickly than trying to do it in a traditional way.
Many of the conflicts that can be faced were analyzed for later solution by other programmers allowing to focus on new unforeseen events that may arise.