What are the best practices for transferring variables between frames in PHP?

When transferring variables between frames in PHP, it is best practice to use sessions or cookies to pass data securely and efficiently. Sessions are ideal for transferring variables within the same browser session, while cookies can be used for longer-term storage across multiple sessions. 

// Start a session to store variables
session_start();

// Set a variable in one frame
$_SESSION['variable_name'] = $value;

// Retrieve the variable in another frame
$variable = $_SESSION['variable_name'];

Keywords

PHP variable transfer frames session variables global variables

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