How can PHP beginners effectively handle and troubleshoot issues related to counting and displaying database entries?

Issue: PHP beginners can effectively handle and troubleshoot issues related to counting and displaying database entries by ensuring they are correctly connecting to the database, querying the database for the desired data, and properly displaying the results on the webpage.

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

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

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

// Query the database for entries
$sql = "SELECT COUNT(*) as total_entries FROM table_name";
$result = $conn->query($sql);

if ($result->num_rows > 0) {
    // Display the total number of entries
    $row = $result->fetch_assoc();
    echo "Total entries: " . $row["total_entries"];
} else {
    echo "0 results";
}

// Close the connection
$conn->close();