What are the advantages of using PHP sessions to store form data for multiple selections compared to other methods like database storage?

Using PHP sessions to store form data for multiple selections is advantageous because it allows for temporary storage of data without the need for a database. This can be particularly useful for smaller applications or when the data does not need to be persisted long-term. Additionally, sessions provide a simple and efficient way to store and retrieve form data across multiple pages without the need for complex database queries.

<?php
session_start();

// Store form data in session variable
$_SESSION['selected_options'] = $_POST['selected_options'];

// Retrieve form data from session variable
$selected_options = $_SESSION['selected_options'];

// Use the data as needed
echo "Selected options: " . implode(", ", $selected_options);
?>