Hey guys I am having a lot of trouble trying to understand this and I was just wondering if someone could help me with some questions. I found some code that is supposed to create a connection with pdo. The problem I was having was having my connection defined within functions. Someone suggested globals but then pointed to a 'better' solution http://stackoverflow.com/questions/130878/global-or-singleton-for-database-connection. My questions with this code are. PS I cannot format this code on this page so see the link if you cannot read

1. What is the point of the connection factory? What goes inside new ConnectionFactory(...)

2. When the connection is defined $db = new PDO(...); why is there no try or catch (I use those for error handling)? Does this then mean I have to use try and catch for every subsequent query?

class ConnectionFactory { private static $factory; public static function getFactory() { if (!self::$factory) self::$factory = new ConnectionFactory(...); return self::$factory; }

private $db;

public function getConnection() {
    if (!$db)
        $db = new PDO(...);
    return $db;
}

}

function getSomething() { $conn = ConnectionFactory::getFactory()->getConnection(); . . . }