Session is a way to store information (in variables) to be used across multiple pages. We can see the architecture of session workflow below:

• Initially we need to write the command session_start() to start a session.
• Once we write the command server will check if there is a session available.

• If there is no server then it will store a cookie in the client machine with the cookie name – PHPSESSID amd it will create a session id of 26 or 32 characters.
• With that it will also store a file on server (Default Location – C:\xampp\tmp) with session id in the suffix.

• If there is already a session in the client machine then it will show the variables stored in the session under (C:\xampp\tmp) the server.

• Once we close the browser all the session ends.

Reference:

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Joydeep M

Software Engineer at COTOCUS

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