In what scenarios would it be advisable to update an older website with new functionality using a mix of JavaScript, PHP, and Flash?

Updating an older website with new functionality using a mix of JavaScript, PHP, and Flash may be advisable if the website is lacking interactivity, responsiveness, or modern features. By incorporating these technologies, you can enhance user experience, improve performance, and stay current with industry standards.

<?php
// PHP code snippet to update an older website with new functionality

// Connect to database
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDB";

$conn = new mysqli($servername, $username, $password, $dbname);

// Check connection
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}

// Retrieve data from database
$sql = "SELECT * FROM products";
$result = $conn->query($sql);

if ($result->num_rows > 0) {
    // Output data of each row
    while($row = $result->fetch_assoc()) {
        echo "Product Name: " . $row["name"]. " - Price: " . $row["price"]. "<br>";
    }
} else {
    echo "0 results";
}

$conn->close();
?>