PEAR DB Install help

[c19h28o2]

Hi,

I've installed pear via pear install db and appears to have installed correctly, however i'm going through Learning PHP and MySQL, the below code should use pear db but it does not work.  I"m running php5 on osx I don't receive an error the page is blank when its run.  mysql and php is setup correctly as it scripts run fine without db.

This is the code....

[code]
<?php
include('db_login.php');
require_once( 'DB.php' );
$connection = DB::connect( "mysql://$db_username:$db_password@$db_host/$db_database");
if (!$connection)
{
  die ("Could not connect to the database: <br>". DB::errorMessage());
};
$query = '
CREATE TABLE `purchases` (
  `purchase_id` int(11) NOT NULL auto_increment,
  `user_id` varchar(10) NOT NULL,
  `title_id` int(11) NOT NULL,
  `purchased` timestamp NOT NULL,
  PRIMARY KEY  (`purchase_id`)
)
';
echo ("Table created successfully!");
$result = $connection->query($query);
if (DB::isError($result))
{
  die ("Could not query the database: <br>". $query. " ".DB::errorMessage($result));
}
$connection->disconnect();
?>
[/code]

Thanks for your help