Are there any best practices or guidelines for updating session data in PHP?

When updating session data in PHP, it is important to follow best practices to ensure the security and efficiency of your application. One common approach is to use the $_SESSION superglobal array to store and update session data. It is also recommended to sanitize user input before updating session variables to prevent security vulnerabilities. 

// Start the session
session_start();

// Update session data
$_SESSION['username'] = $_POST['username'];
$_SESSION['email'] = filter_var($_POST['email'], FILTER_SANITIZE_EMAIL);

Keywords

session data PHP updating guidelines best practices

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