How can issues with missing features like avatar images and team lists be addressed when updating a website with PHP Fusion scripts?

Issue: To address missing features like avatar images and team lists when updating a website with PHP Fusion scripts, you can check the database for any missing data and ensure that the necessary information is properly fetched and displayed on the website. Code snippet:

// Check if avatar image exists for a user
$user_id = 1; // Example user ID
$query = "SELECT avatar FROM users WHERE user_id = $user_id";
$result = mysqli_query($conn, $query);

if(mysqli_num_rows($result) > 0) {
    $row = mysqli_fetch_assoc($result);
    $avatar = $row['avatar'];
    echo "<img src='avatars/$avatar' alt='Avatar'>";
} else {
    echo "Avatar not found";
}

// Display team list
$query = "SELECT * FROM team_members";
$result = mysqli_query($conn, $query);

if(mysqli_num_rows($result) > 0) {
    while($row = mysqli_fetch_assoc($result)) {
        echo $row['name'] . " - " . $row['position'] . "<br>";
    }
} else {
    echo "No team members found";
}