How can you store a variable from a session globally in PHP?

To store a variable from a session globally in PHP, you can use the $_SESSION superglobal array to set the variable in the session and then access it globally by setting it to a global variable within the script. This allows you to access the session variable across different parts of your PHP application. 

// Start the session
session_start();

// Set a session variable
$_SESSION['globalVar'] = 'Hello, world!';

// Set the session variable to a global variable
$GLOBALS['globalVar'] = $_SESSION['globalVar'];

// Now you can access the session variable globally
echo $GLOBALS['globalVar'];

Keywords

session variable global PHP $_SESSION scope

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