public static function getDbConnection()
{
if (!isset(Util::$dbConnection)) {
global $dbHost, $dbUser, $dbPassword, $dbDatabase;
Util::verifyDbConfiguration();
$dbOptions = array();
$dbOptions[PDO::MYSQL_ATTR_FOUND_ROWS] = true;
Util::$dbConnection = new PDO("mysql:host=" . $dbHost . ";dbname=" . $dbDatabase, $dbUser, $dbPassword, $dbOptions);
Util::$dbConnection->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
}
return Util::$dbConnection;
}