What are the best practices for passing and managing variables between PHP pages to maintain continuity in user interactions?

When passing and managing variables between PHP pages to maintain continuity in user interactions, it is best practice to use sessions. By storing variables in session variables, you can easily access them across different pages without the need to pass them through URLs or forms. This ensures a seamless user experience and helps maintain data integrity throughout the user's session. 

// Start the session
session_start();

// Set a variable in the session
$_SESSION['username'] = 'JohnDoe';

// Retrieve the variable on another page
echo $_SESSION['username'];

Keywords

session variables GET method POST method cookies form submission

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