What are some best practices for handling data transfer between frames in PHP?

When transferring data between frames in PHP, a common best practice is to use session variables to store and retrieve the data. This ensures that the data is accessible across different frames within the same session. By using session variables, you can easily pass data between frames without the need for complex URL parameters or form submissions. 

// Start the session
session_start();

// Set data in one frame
$_SESSION['data'] = 'Hello, World!';

// Retrieve data in another frame
$data = $_SESSION['data'];

// Unset the session variable after use
unset($_SESSION['data']);

Keywords

data transfer frames PHP session variables cross-origin restrictions

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