In what ways can PHP developers ensure the security of user data when passing it between pages in a web application?

To ensure the security of user data when passing it between pages in a web application, PHP developers can use sessions to store sensitive information securely on the server-side rather than passing it through URLs or hidden form fields. 

// Start a session
session_start();

// Store sensitive user data in the session
$_SESSION['user_data'] = $user_data;

// Retrieve the user data on another page
$user_data = $_SESSION['user_data'];

Keywords

PHP data encryption session management cross-site scripting input validation

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