$_SESSION is a special array used to store information across the page requests a user makes during his visit to your website or web application. The most fundamental way to explain what a sessions is like is to imagine the following scenario: You are working with an application. You open it, make some changes, and then you close it. That is a session in it’s simplest form.
PHPMaster: PHP Sessions
Callum Hopkins is a designer and front-end developer with over 6 years web experience and a Bachelors degree in Design for Digital Media. With knowledge in both design and development, he is able to influence both sides of the web building process. Callum has a love for complex coding functions and beautiful design. He runs his own personal blog at where he writes thought-provoking articles.