What could be the reason for the code not displaying the threads on the website?

The reason for the code not displaying the threads on the website could be due to an error in the database query or the way threads are being fetched and displayed on the website. To solve this issue, you should check the database connection, query syntax, and the loop used to display the threads on the website.

// Check database connection and query syntax
$conn = new mysqli($servername, $username, $password, $dbname);
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}

$sql = "SELECT * FROM threads";
$result = $conn->query($sql);

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

$conn->close();