added documentation to main repository.

documentation/session/usage.md

@@ -0,0 +1,59 @@
+## Session Usage
+
+- [Storing Items](#put)
+- [Retrieving Items](#get)
+- [Removing Items](#forget)
+- [Regeneration](#regeneration)
+
+<a name="put"></a>
+### Storing Items
+
+Storing items in the session is a breeze. Simply call the put method on the Session class:
+
+	Session::put('name', 'Taylor');
+
+The first parameter is the **key** to the session item. You will use this key to retrieve the item from the session. The second parameter is the **value** of the item.
+
+Need to store an item in the session that should expire after the next request? Check out the **flash** method. It provides an easy way to store temporary data like status or error messages:
+
+	Session::flash('status', 'Welcome Back!');
+
+<a name="get"></a>
+### Retrieving Items
+
+Retrieving items from the session is no problem. You can use the **get** method on the Session class to retrieve any item in the session, including flash data. Just pass the key of the item you wish to retrieve:
+
+	$name = Session::get('name');
+
+By default, NULL will be returned if the session item does not exist. However, you may pass a default value as a second parameter to the get method:
+
+	$name = Session::get('name', 'Fred');
+
+	$name = Session::get('name', function() {return 'Fred';});
+
+Now, "Fred" will be returned if the "name" item does not exist in the session.
+
+Laravel even provides a simple way to determine if a session item exists using the **has** method:
+
+	if (Session::has('name'))
+	{
+	     $name = Session::get('name');
+	}
+
+<a name="forget"></a>
+### Removing Items
+
+Need to get rid of a session item? No problem. Just mention the name of the item to the **forget** method on the Session class:
+
+	Session::forget('name');
+
+You can even remove all of the items from the session using the **flush** method:
+
+	Session::flush();
+
+<a name="regeneration"></a>
+### Regeneration
+
+Sometimes you may want to "regenerate" the session ID. This simply means that a new, random session ID will be assigned to the session. Here's how to do it:
+
+	Session::regenerate();