Which Symfony Version number?

The Symfony console provides a -V option. This can be handy for quickly finding out which version of Symfony a system is running but it has moved location a bit over the years (note the uppercase -V or use –version):

$ php bin/console -V
Symfony version 3.1.2 - app/dev/debug

If this produces a bunch of errors about autoload.php then you need to run composer install to install other required parts of Symfony. Whilst if you receive a command not found error then try:

$ php app/console -V
Symfony version 2.7.10 - app/dev/debug

If still a command not found error then try:

$ php lib/vendor/symfony/data/bin/symfony -V
Symfony version 1.4.20

In all versions, running console without -V will produce a long list of all the commands available, along with the version info. This is very useful and really good regular learning exercise, the options really show how Symfony works.

As we can see, the console command moved to the project folder’s bin/ folder as of version 3.0 in Symfony2 versions the console command lived in the project’s app/ directory, whilst if only lib/vendor/symfony/data/bin/symfony exists then you’re using Symfony version 1 (now an obsolete legacy platform)!

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