Session Store: Store and retrieve sessions as arrays of values

This class can store and retrieve sessions as arrays of values.

It can take on more strings of session data and add them to an array that is stored in a session variable.

The data values can be appended to the array or added with a specific array index value.

The class can also retrieve the array of values previously stored in that session variable or just specific values with given index keys values.

It can also check of any data values were added to the session variable, as well reset the session variable.

What is the best PHP session class?
Handle session variables.