env file and boolean values ​​such as true or false

I think the solution is to let the Dotenv value to empty.

Let's say I have a boolean Dotenv variable such as email.DSN. To set it to false, I use:

Code:

# Use the following to set the value to false
email.DSN =

If I set any other value, it will be considered as true, event if I set it to false.
For example the following values will result in true in the code.

Code:

# All the following values will be considered true
email.DSN = false
email.DSN = 0
email.DSN = whatever
email.DSN = true
email.DSN = 1

Note: I don't think using env() function is a good solution if the Dotenv variable corresponds to a config value.
In my example, there is a 'DSN' variable in the app/Config/Email.php file:

PHP Code:

public bool $DSN = false; 


As the env() function does not read the config file, if I remove the value of email.DSN from the Dotenv file, then env('email.DSN') will return null and not the value that is in the config file.