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PHP PHP User Authentication Adding Authentication to Your Application Building a JWT

Brandyn Lordi
Brandyn Lordi
17,778 Points
Posted by Brandyn Lordi
Brandyn Lordi
17,778 Points

Why is this JWT array value wrapped in curly braces?

the 'Sub' below-

$jwt = \Firebase\JWT\JWT::encode([
    'iss'   => request()->getBaseUrl(),
    'sub' =>    "{$user['id']}",
    'exp'   => $expTime,
    'iat'   =>  time(),
    'nbf'   =>  time(),
    'is_admin'  => $user['role'] == 1
    ], getenv('SECRET_KEY'), 'HS256');

1 Answer

Chris Shaw
Chris Shaw
26,676 Points
Chris Shaw
Chris Shaw
26,676 Points

Hi Brandyn Lordi,

I would recommend you have a read of the link below which explains in some degree of detail what JWT is and how they work.

https://jwt.io/introduction/

Hope that helps!

Brandyn Lordi
Brandyn Lordi
17,778 Points
Brandyn Lordi
Brandyn Lordi
17,778 Points

Hi Chris, Thanks for your reply.

Perhaps I missed something, but the curly braces around the subject don't appear unique to creating the JWT, at least- not from what I could tell in the docs (which leave much to be desired IMO).

I still don't understand the purpose of the curly braces around the value of 'sub' when creating the JWT for these specific videos in this project.