How can I pass a null/empty env variable?

[ntd1712]

I currently use "m1/vars": "~1.1"; how can I pass a null/empty env variable?
For example, I have the following settings:

.env file:
DB_PASSWORD=

settings.yml:
password: '%^DB_PASSWORD%'

Setting this will raise a following exception:

---

An uncaught Exception was encountered
Type: InvalidArgumentException
Message: Variable has not been defined as a DB_PASSWORD: env
Filename: C:\wamp\www\outsource\ci3ng\src\vendor\m1\vars\src\Variables\VariableProvider.php
Line Number: 179

Backtrace:
File: C:\wamp\www\outsource\ci3ng\src\vendor\m1\vars\src\Variables\VariableProvider.php
Line: 152
Function: checkVariableExists

[m1]

@ntd1712 Try DB_PASSWORD = null

There may be an issue with trying to pass empty key/values as variables, I'll look into this.

[m1]

Wait actually, are you loading the .env file through Vars? If so, use the infile replacement syntax, so password: '%^DB_PASSWORD%' would become password: '%$DB_PASSWORD%'

[ntd1712]

Second try with password: '%$DB_PASSWORD%', but still not success.

Look at your file src/vendor/m1/vars/src/Variables/VariableProvider.php [line 175], we will see the line where error occurred:
if (($type === 'env' && !getenv($variable)) ||

If we replace it with the following, then it works! =):
if (($type === 'env' && false === getenv($variable)) ||

[peter279k]

@m1. Is any suggestion about the @ntd1712 says?

[Dragonrun1]

So is this bug being fixed or ?

[m1]

Not as of yet, don’t really do much php these days. Happy to take pull requests!