What is the purpose of using variable Sessionvariable in PHP?

Session variables in PHP are used to store and access data across multiple pages during a user's visit to a website. They are particularly useful for storing user-specific information such as login credentials, shopping cart items, or preferences. By using session variables, you can maintain stateful information for a user without relying on cookies or URL parameters. 

// Start the session
session_start();

// Set a session variable
$_SESSION['username'] = 'john_doe';

// Access the session variable on another page
session_start();
echo $_SESSION['username'];

Keywords

Session variable PHP web development data persistence user authentication

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