Encrypting SQLite DB

PHP
1

I am running this from the command line using php 5.3.5 on windows XP using php installed with wamp.

I can read the data in the created database using a text editor.

Can anyone explain why the SQLite DB created is not encrypted. openssl and mcrypt are both installed and show as enabled in phpinfo().

function createTables($db){
	$account = "Create table if not exists account ("
				."id integer primary key autoincrement"
				.", name varchar(20)"
				.", address varchar(50)"
				." )";
	$payment = "Create table if not exists payment ("
				."id integer primary key autoincrement"
				.", accountID integer references account(id)"
				.", amount float"
				." )";
	$db->exec($account);
	$db->exec($payment);
}

/* 
 * main line code
 */

$db = new SQLite3("testDB", SQLITE3_OPEN_READWRITE|SQLITE3_OPEN_CREATE, "myEncryptKey" );
if ( $db === false ){
	echo "Can not open Transaction Database.";
	exit;
}
createTables($db);
$sql = "insert into account values (null, 'john welch', '110 S main, wichita ks')";
$db->exec( $sql);
$sql = "";
$sql = "insert into payment values (null, ".$db->lastInsertRowID().", 23.45)";
$db->exec($sql);
$db->close();