Zebra_Session

Zebra_Session works as an alternative (or better say replacement) for PHP’s built-in session handling system.

By default, PHP uses a flat file on the server to store session details and a cookie file on the user's PC to identify the correct owner of that session data.

Zebra_Session works the same way, only instead of flat-files it uses a MySQL database to store the session data.

This is done mainly for better speed and performance, and is also a much secure way to handle sessions as well.

Features:

• Scalable across multiple servers, applications and services
• Drop-in replacement, no need to change application code
• Support for row locks and AJAX operations
• Documentation
• Error reporting
• Commented code

What is new in this release:

• This version makes use of a feature introduced in PHP 5.1.0 for the "regenerate_id" method.

What is new in version 2.0.3:

• Fixed a bug where sessions' life time was twice longer than expected.
• Details on how to preserve session data across subdomains was added to the documentation.
• The messages related database connection errors are now more meaningful.

What is new in version 2.0.2:

• Fixed a bug with the get_active_sessions() method which was not working at all;
• Fixed a bug where the script was not using the provided MySQL link identifier (if available);

What is new in version 2.0.1:

• The constructor method now accepts an optional link argument which must be a MySQL link identifier. By default, the library made use of the last link opened by mysql_connect(). On some environments (particularly on a shared hosting) the "last link opened by mysql_connect" was not available at the time of the instantiation of the Zebra_Session library. For these cases, supplying the MySQL link identifier to the constructor method will fix things.
• Some documentation refinements.

What is new in version 2.0:

• The class now implements session locking.
• Session locking is a way to ensure that data is correctly handled in a scenario with multiple concurrent AJAX requests.

What is new in version 1.0.8:

• Fixed a small bug in the destroy method; thanks to Tagir Valeev for reporting;
• The script would trigger a PHP notice if the HTTP_USER_AGENT value was not available in the $_SERVER super-global;
• Added a new method "get_settings" that returns the default session-related settings for the environment where the class is used.

Requirements:

• PHP 5.1 or higher
• MySQL 4.1.22 or higher