<?php
 if (!empty ($_POST["fname"]) && !empty($_POST["lname"]))
 {
$fname = $_POST["fname"];
$lname = $_POST["lname"];
$filename = "myguestbook.txt";
$handle = fopen($filename, "a");
$data = $fname . " " . $lname . "\n";
if (fwrite($handle, $data)) {

        echo "Thank you for signing the guest book!<br><br>";
        echo '<a href="guestbookshow.php">Show Guest Book</a>';
        fclose($handle);

}

else {

        echo "Cannot add your name to the Guest Book.";

}

 } else {

echo "<p>Please go back and enter the First name and Last name.</p>";
echo '<a href="guestbookshow.php">Show Guest Book</a>';
}
?>