=== WP Session Manager ===
Contributors:      ericmann
Donate link:       https://paypal.me/eam
Tags:              session
Requires at least: 4.7
Tested up to:      4.9.1
Stable tag:        2.0.2
License:           GPLv2 or later
License URI:       http://www.gnu.org/licenses/gpl-2.0.html

Prototype session management for WordPress.

== Description ==

Adds `$_SESSION`-like functionality to WordPress.

Every visitor, logged in or not, will be issued an instance of `WP_Session`.  Their instance will be identified by an ID
stored in the `_wp_session` cookie.  Typically, session data will be stored in a WordPress transient, but if your
installation has a caching system in-place (i.e. memcached), the session data might be stored in memory.

This provides plugin and theme authors the ability to use WordPress-managed session variables without having to use the
standard PHP `$_SESSION` superglobal.

== Installation ==

= Manual Installation =

1. Upload the entire `/wp-session-manager` folder to the `/wp-content/plugins/` directory.
1. Activate the plugin through the 'Plugins' menu in WordPress.
1. Use `WP_Session::get_instance()` in your code.

== Frequently Asked Questions ==

= How do I add session variables? =

First, make a reference to the WP_Session instance.  Then, use it like an associative array, just like `$_SESSION`:

`$wp_session = WP_Session::get_instance();
$wp_session['user_name'] = 'User Name';                            // A string
$wp_session['user_contact'] = array( 'email' => 'user@name.com' ); // An array
$wp_session['user_obj'] = new WP_User( 1 );                        // An object`

= How long do session variables live? =

By default, session variables will live for 24 minutes from the last time they were accessed - either read or write.

This value can be changed by using the `wp_session_expiration` filter:

`add_filter( 'wp_session_expiration', function() { return 60 * 60; } ); // Set expiration to 1 hour`

== Screenshots ==

None

== Changelog ==

= 2.0.2 =
* Fix: Wire the data storage migration to a session init hook to ensure it runs.
* Fix: Clean up sessions when all data is removed.

= 2.0.1 =
* Fix: Repair data storage that was not returning actual stored session data.

= 2.0.0 =
* Update: Use a table instead of options for storing session data.

= 1.2.2 =
* Update: Use regex pattern matching to ensure session IDs are identical going in/out of the DB to account for encoding differences

= 1.2.1 =
* Update: Additional filters for the `setcookie` parameters
* Update: Expose the Session ID publicly
* Fix: Better handling for malformed or broken session names

= 1.2.0 =
* Update: Enhanced plugin organization
* Update: Added WP_CLI support for session management
* Update: Add Composer definitions
* Fix: Break up the deletion of old sessions so queries don't time out under load

= 1.1.2 =
* Fix a race condition where session expiration options could accidentally be set to autoload
* Make the garbage collection routine run hourly to alleviate long-running tasks on larger sites

= 1.1.1 =
* Fix a bug where session expiration was not properly set upon instantiation

= 1.1 =
* Implement Recursive_ArrayAccess to provide multidimensional array support
* Better expiration for session data
* Implement garbage collection to keep the database clean

= 1.0.2 =
* Switch to object persistence rather than transients

= 1.0.1 =
* Changes implementation to avoid the use of a global variable (still registered for convenience)

= 1.0 =
* First version

== Upgrade Notice ==

= 2.0 =

This version will create a new database table for storing session data! If you do not want such a table, please set the `WP_SESSION_USE_OPTIONS` constant to `true` in `wp-config.php`! Upgrading will delete all existing sessions!

= 1.0 =
First version