List env variables for Symfony application

Method 1: Verbose output

php bin/console debug:dotenv

This should output something like:

Dotenv Variables & Files
========================

Scanned Files (in descending priority)
--------------------------------------

* ⨯ .env.local.php
* ⨯ .env.dev.local
* ✓ .env.dev
* ⨯ .env.local
* ✓ .env

Variables
---------

---------- ------- ---------- ------
 Variable   Value   .env.dev   .env
---------- ------- ---------- ------
 FOO        BAR     n/a        BAR
 ALICE      BOB     BOB        bob
---------- ------- ---------- ------


php bin/console debug:dotenv foo

Method 2: Concise output

bin/console debug:container --env-vars

This should output something like:

------------ ----------------- ------------------------------------ -------------
 Name         Default value     Real value                           Usage count
------------ ----------------- ------------------------------------ -------------
 APP_SECRET   n/a               "471a62e2d601a8952deb186e44186cb3"   2
 BAR          n/a               n/a                                  1
 BAZ          n/a               "value"                              0
 FOO          "[1, "2.5", 3]"   n/a                                  1
------------ ----------------- ------------------------------------ -------------


php bin/console debug:container --env-vars foo


php bin/console debug:container --env-var=FOO

Links

• Symfony docs