Serializer component can be used to convert objects to specific format (e.g. JSON, XML) and vice versa. By default, Serializer keeps properties that contain a null value during object serialization...

When implementing a web application, we may need to check whether a route exists. This tutorial provides example how to do it in Symfony 7 application. We can inject the...

JSON is a widely used data format for implementing APIs. Symfony framework provides the JsonResponse class which enables to represent an HTTP response in JSON format. However, this class works...

There are APIs which works with XML data format. It means that request and response represented in XML format. This tutorial provides example how to return object as XML response...

If we are developing a library that is used by multiple applications, then we have to be very careful when renaming class methods, removing unnecessary code or doing other breaking...

By default, if an application throws an exception, Symfony will turn that exception into an error with 500 HTTP status code, unless exception implements the HttpExceptionInterface or extends a class...

Symfony framework uses .env files for storing environment variables. In all environments (including prod), the .env files are loaded and parsed on each request. This process can be optimized in...

Symfony framework provides the JsonResponse class that allows to represent an HTTP response in JSON format. This class returns a JSON response that is not formatted and can be hard...

There might be a case to add a custom HTTP header to all the responses in Symfony application. It can be achieved by adding header on each controller method. However...

Symfony framework allows using profiler that gives debug information about various application parts during development. This tutorial explains how to enable profiler using URL query parameter in Symfony 7 application...