A PHP library acting as a wrapper for PHP's default session handling functions which stores data in a MySQL database, providing both better performance and better security and protection against session fixation and session hijacking.
A drop-in replacement for PHP's default session handler which stores session data in a MySQL database, providing both better performance and better security and protection against session fixation and session hijacking.
Zebra_Session implements session locking - a way to ensure that data is correctly handled in a scenario with multiple concurrent AJAX requests.
It is also a solution for applications that are scaled across multiple web servers (using a load balancer or a round-robin DNS) and where the user's session data needs to be available. Storing sessions in a database makes them available to all of the servers!
The library supports "flashdata" - session variable which will only be available for the next server request, and which will be automatically deleted afterwards. Typically used for informational or status messages (for example: "data has been successfully updated").
The code is heavily commented and generates no warnings/errors/notices when PHP's error reporting level is set to E_ALL.
acts as a wrapper for PHP’s default session handling functions, but instead of storing session data in flat files it stores them in a MySQL database, providing better security and better performance
it is a drop-in and seamingless replacement for PHP’s default session handler: PHP sessions will be used in the same way as prior to using the library; you don’t need to change any existing code!
implements row locks, ensuring that data is correctly handled in scenarios with multiple concurrent AJAX requests
because session data is stored in a database, the library represents a solution for applications that are scaled across multiple web servers (using a load balancer or a round-robin DNS)
has comprehensive documentation
the code is heavily commented and generates no warnings/errors/notices when PHP’s error reporting level is set to E_ALL
PHP 5.1.0+ with the mysqli extension activated, MySQL 4.1.22+
Download the latest version, unpack it, and put it in a place accessible to your scripts. After unpacking, you will notice a directory called install containing a file named session_data.sql. This file contains the SQL code that will create a table that is used by the class to store session data. Import or execute the SQL code using your preferred MySQL manager (like phpMyAdmin or the fantastic Adminer) into a database of your choice.
Note that this class assumes that there is an active connection to a MySQL database and it does not attempt to create one! If you really need the class to make a database connection, put the code in the "open" method of the class.
<?php // first, connect to a database containing the sessions table // like $link = mysqli_connect(host, username, password, database); // include the Zebra_Session class include 'path/to/Zebra_Session.php'; // instantiate the class // this also calls session_start() $session = new Zebra_Session($link, 'sEcUr1tY_c0dE'); // from now on, use sessions as you would normally // this is why it is called a "drop-in replacement" :) $_SESSION['foo'] = 'bar'; // data is in the database! ?>
Visit the project's homepage for more information.