How does using a database instead of text files improve the functionality and maintenance of a PHP guestbook script?

Using a database instead of text files improves the functionality and maintenance of a PHP guestbook script by providing better data organization, faster data retrieval, and easier data manipulation. It allows for more efficient querying and searching of guestbook entries, as well as scalability for handling a large number of entries. 

// Connect to the 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);
}

Keywords

database text files PHP guestbook script functionality

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