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JwtSession

JwtSession is a PHP session replacement. Instead of use FileSystem, just use JWT TOKEN. The implementation following the SessionHandlerInterface.

How to use:

Before the session_start() use the command:

Now, all your $_SESSION variable will be saved directly to a JWT Token!!

Secret key

Make sure that you are providing a base64url encoded key.

Motivation

The default PHP Session does not work in different servers using round robin or other algorithms. This occurs because PHP Session are saved by default in the file system.

There are implementations can save the session to REDIS or MEMCACHED, for example. But this requires to you create a new server to store this session and creates a single point of failure. To avoid this you have to create REDIS/MEMCACHED clusters.

But if you save the session into JWT Token you do not need to create a new server. Just to use.

You can read more in this Codementor's article: Using JSON Web Token (JWT) as a PHP Session

Security Information

The JWT Token cannot be changed, but it can be read. This implementation save the JWT into a client cookie.
Because of this do not store in the JWT Token sensible data like passwords.

Install

Setting the validity of JWT Token

Setting the different Session Contexts

Create the handler and replace the session handler

Specify cookie domain

Uses RSA Private/Public Keys

If you want to know more details about how to create RSA Public/Private Keys access: https://github.com/byjg/jwt-wrapper

How it works

We store a cookie named AUTHBEARER with the session name. The PHPSESSID cookie is still created because PHP create it by default but we do not use it;

Open source ByJG