How can PHP scripts maintain variables between different pages or scripts?

PHP scripts can maintain variables between different pages or scripts by using sessions or cookies. Sessions store variables on the server side, while cookies store them on the client side. By starting a session or setting a cookie with the desired variable value, it can be accessed across different pages or scripts until the session is closed or the cookie expires. 

// Start a session to maintain variables across different pages
session_start();

// Set a session variable
$_SESSION['variable_name'] = 'variable_value';

// Access the session variable on another page
echo $_SESSION['variable_name'];

Keywords

Session variables cookies global variables POST method GET method

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