guestbook in php senza il database!

[binarydigit0101]

magari un po' come funziona la parte del database...
...

<?PHP
	ob_start();
	header("Cache-Control: No-Cache");
	if (!is_file("philip_data")){		// controllo se esiste il file
		$dbc = sqlite_open("philip_data");	// variabile d'apertura sqlite il file di tipo database
		$query = "CREATE TABLE guestbook (inputId PRIMARY KEY, inputText TEXT NOT NULL);";
		sqlite_query($dbc,$query);
		header("Location: {$_SERVER['PHP_SELF']}");
	} else {
	 	$dbc = sqlite_open("philip_data");
	 	if ($_POST['message']){
	 	 	$tid = date("H:i:s d/m-Y");	// variabile data con formato definito
	 	 	$_POST['message'] = stripslashes(htmlspecialchars($_POST['message']));
	 	 	$_POST['name'] = stripslashes(htmlspecialchars($_POST['name']));
			$mess = "Postet av: {$_POST['name']}

{$_POST['message']}

Postet: $tid<hr/>";
			$query = "INSERT INTO guestbook (inputText) VALUES ('$mess');";
			sqlite_query($dbc,$query);
			header("Location: {$_SERVER['PHP_SELF']}");
		}
		$query = "SELECT inputText FROM guestbook ORDER BY inputId DESC;";
		$array = sqlite_single_query($dbc,$query);
		if(count($array)>15){
		 	$extrapages = floor(count($array)/15);
		 	$extrapages++;
		 	if (count($array)%15 == 0){
				$extrapages--;
			}
			if($_GET['page']){
				$num = $_GET['page'] * 15;
				for($i=$num;$i<count($array);$i++){
					$extra[] = array_pop($array);
				}
				for($i=0;$i<$num-15;$i++){
					$extra[] = array_shift($array);
				}
			} else {
				for($i=15;$i<count($array);$i++){
					$extra[] = array_pop($array);
				}
			}
		}
		echo "<table border=\"0\" cellpadding=\"10\" cols=\"50\"><tr><td><form action=\"{$_SERVER['PHP_SELF']}\" method=\"POST\">Socio: <input type=\"text\" name=\"name\" />
Scrivi il tuo messaggio:
<textarea cols=\"30\" rows=\"10\" name=\"message\"></textarea>
<input type=\"submit\" value=\"Firma.\"/></form></td></tr>";
		if($array && is_array($array)){
			foreach ($array as $input){
				echo "<tr><td width=\"20\">$input</td></tr>\n";
			}
		} elseif ($array){
			echo "<tr><td width=\"20\">$array</td></tr>";
		} else {
			echo "<td><tr><h4>Ecco tutti i messaggi dei soci!</h4></td></tr>";
		}
		echo "</table>";
		if ($extrapages != 0){
			echo extrapages($extrapages);
		}
	}
	function extrapages($num){
		$to = "<table borders=\"0\" cellpadding=\"10\"><tr><td>";
		for($i=0;$i<$num;$i++){
		 	$top = $i+1;
			$to .= "<a href=\"?page=$top\">$top</a> ";
		}
		$to .= "</td></tr></table>";
		return $to;
	}
?>