What are the steps to create a guestbook using PHP and MySQL?

Creating a guestbook using PHP and MySQL involves setting up a database table to store guestbook entries, creating a form for users to submit entries, and displaying the entries on a webpage.

<?php
// Connect to MySQL database
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "guestbook";

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

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

// Create a form for users to submit guestbook entries
echo '<form method="post" action="submit_entry.php">
    <input type="text" name="name" placeholder="Name"><br>
    <textarea name="message" placeholder="Message"></textarea><br>
    <input type="submit" value="Submit">
</form>';

// Display guestbook entries from database
$sql = "SELECT name, message FROM entries";
$result = $conn->query($sql);

if ($result->num_rows > 0) {
    while($row = $result->fetch_assoc()) {
        echo "Name: " . $row["name"]. " - Message: " . $row["message"]. "<br>";
    }
} else {
    echo "0 results";
}

$conn->close();
?>