How can session variables be effectively utilized to store and retrieve calculation results from a PHP script separate from the form page?

To store and retrieve calculation results from a PHP script separate from the form page using session variables, you can store the result in a session variable after the calculation is performed on the form page. Then, on the separate PHP script where you want to retrieve the result, you can access the session variable to retrieve the stored result. 

// Form page where calculation is performed
session_start();
$result = // Perform calculation here
$_SESSION['result'] = $result;

// Separate PHP script to retrieve result
session_start();
if(isset($_SESSION['result'])) {
    $result = $_SESSION['result'];
    // Make use of $result as needed
} else {
    echo "Result not found in session variable.";
}

Keywords

session variables PHP script form page calculation results retrieve

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