/**
* Get singleton instance of the class
*/
public static function getInstance($aDbConf = false, &$sError = null)
{
if (!isset($GLOBALS['bxDolClasses'][__CLASS__])) {
if (false === $aDbConf && !defined('BX_DATABASE_HOST')) {
return null;
}
$o = new BxDolDb($aDbConf);
$sErrorMessage = $o->connect();
if ($sErrorMessage) {
if ($sError !== null) {
$sError = $sErrorMessage;
}
return null;
} else {
$GLOBALS['bxDolClasses'][__CLASS__] = $o;
}
}
return $GLOBALS['bxDolClasses'][__CLASS__];
}
