How to know which version of Symfony I have? - php

Question

I know that I have downloaded a Symfony2 project and started with but I have updated my vendor several times and I want to know which version of symfony I have
Any idea ?

Answer 1

Run app/console --version (for Symfony3: bin/console --version), it should give you a pretty good idea. On a random project of mine, the output is:
Symfony version 2.2.0-DEV - app/dev/debug
If you can't access the console, try reading symfony/src/Symfony/Component/HttpKernel/Kernel.php, where the version is hardcoded, for instance:
const VERSION = '2.2.0';
Just in case you are wondering, console creates an instance of Symfony\Bundle\FrameworkBundle\Console\Application. In this class constructor, it uses Symfony\Component\HttpKernel\Kernel::VERSION to initialize its parent constructor.

Answer 2

Although there are already many good answers I'd like to add an option that hasn't been mentioned. Using the command:
php bin/console about
you can get many details about the current project. The first section is about Symfony itself and looks like this:
-------------------- -------------------------------------------
Symfony
-------------------- -------------------------------------------
Version 4.2.3
End of maintenance 07/2019
End of life 01/2020
-------------------- -------------------------------------------
I find the other information besides the version number very useful.
There are also other sections providing details about the (framework) Kernel, PHP, Environment.

Answer 3

Another way is to look at the source for Symfony\Component\HttpKernel\Kernel for where const VERSION is defined. Example on GitHub
Locally this would be located in vendor/symfony/symfony/src/Symfony/Component/HttpKernel/Kernel.php.

Answer 4

Use the following command in your Terminal/Command Prompt:
php bin/console --version
This will give you your Symfony Version.

Answer 5

also you can check the version of symfony and versions of all other installed packages by running
composer show
or
composer show | grep sonata
to get versions of specific packages like sonata etc.

Answer 6

If you want to dynamicallly display your Symfony 2 version in pages, for example in footer, you can do it this way.
Create a service:
<?php
namespace Project\Bundle\DuBundle\Twig;
class SymfonyVersionExtension extends \Twig_Extension
{
public function getFunctions()
{
return array(
//this is the name of the function you will use in twig
new \Twig_SimpleFunction('symfony_version', array($this, 'b'))
);
}
public function getName()
{
//return 'number_employees';
return 'symfony_version_extension';
}
public function b()
{
$symfony_version = \Symfony\Component\HttpKernel\Kernel::VERSION;
return $symfony_version;
}
}
Register in service.yml
dut.twig.symfony_version_extension:
class: Project\Bundle\DutBundle\Twig\SymfonyVersionExtension
tags:
- { name: twig.extension }
#arguments: []
And you can call it anywhere. In Controller, wrap it in JSON, or in pages example footer
<p> Built With Symfony {{ symfony_version() }} Version MIT License</p>
Now every time you run composer update to update your vendor, symfony version will also automatically update in your template.I know this is overkill but this is how I do it in my projects and it is working.

Answer 7

we can find the symfony version using Kernel.php file but problem is the Location of Kernal Will changes from version to version (Better Do File Search in you Project Directory)
in symfony 3.0 :
my_project\vendor\symfony\symfony\src\Symfony\Component\HttpKernel\Kernel.php
Check from Controller/ PHP File
$symfony_version = \Symfony\Component\HttpKernel\Kernel::VERSION;
echo $symfony_version; // this will return version; **o/p:3.0.4-DEV**

Answer 8

if you trying with version symfony
please try with
symfony 2 +
cmd>php app/console --version
symfony 3+
cmd>php bin/console --version
for example
D:project>php bin/console --version
Symfony 3.2.8 (kernel: app, env: dev, debug: true)

Answer 9

For Symfony 3.4
Check the constant in this file vendor/symfony/http-kernel/Kernel.php
const VERSION = '3.4.3';
OR
composer show | grep symfony/http-kernel

Answer 10

From inside your Symfony project, you can get the value in PHP this way:
$symfony_version = \Symfony\Component\HttpKernel\Kernel::VERSION;

Answer 11

Maybe the anwswers here are obsolete... in any case, for me running Symfony 4, it is easy
Just type symfony -V from the command line.

Answer 12

This page is the top Google result for search which version symfony using, and the top answers probably don't work anymore.
Apparently I'm on Symfony 5, after running symfony new aqua_note (from SymfonyCasts recommendation).
I had to ultimately run grep -r VERSION . | grep Kernel to see ./vendor/symfony/http-kernel/Kernel.php: public const VERSION = '5.4.2';... at least I think that's correct now.

Answer 13

if you are in app_dev, you can find symfony version at the bottom left corner of the page