oop - How long will an instance of a PHP class last? -

How long does the example of a class object in the PHP, whether it is limited to running scripts Will stand for? If this is the last for a session, regardless of whether the PHP script starts the session?

There is a simple question but it makes a big difference to me because it will mean that user data will be turned on in the server and the session will not require storage. Therefore, some of my designs influence fundamental elements.

Thanks Colin

Actually related to OOP but generally PHP practices

All PHP data is not going anywhere, and PHP script itself is also going on

PHP script executing atom is a desktop application Not like that, which is continuously running in your browser, and not even with the constant connection with your desktop application. This command line is more like utility - it works out and exits.

This is the reason why using external storage, such as a file or a database, is required but it is obvious that you can save only the stars, not the examples or types of variables. Strings Only