connect database error

[informativa]

when the data base passord is incorrect and it is impossible co connect the script Inc.DBinit.php d not intercept error

i create this test

if(!empty($settings->_coreDir))
require_once($settings->_coreDir.'/Core.php');
else
require_once('LetoDMS/Core.php');
$settings->_dbPass='pippo';
echo "<br>".$settings->_dbDriver."<br>".$settings->_dbHostname."<br>". $settings->_dbUser."<br>". $settings->_dbPass."<br>". $settings->_dbDatabase."<br>";

$db = new LetoDMS_Core_DatabaseAccess($settings->_dbDriver, $settings->_dbHostname, $settings->_dbUser, $settings->_dbPass, $settings->_dbDatabase);
$db->connect() or die ("Could not connect to db-server \"" . $settings->_dbHostname . "\"");

$dms = new LetoDMS_Core_DMS($db, $settings->_contentDir.$settings->_contentOffsetDir);

if(!$dms->checkVersion()) {
echo "Aggiornamento database necessario; Database update needed.";
exit;
}

$dms->setRootFolderID($settings->_rootFolderID);
$dms->setMaxDirID($settings->_maxDirID);
$dms->setEnableAdminRevApp($settings->_enableAdminRevApp);
$dms->setEnableConverting($settings->_enableConverting);
$dms->setViewOnlineFileTypes($settings->_viewOnlineFileTypes);



I force new incorrect password (pippo)
this is the result:


mysql
localhost
censored
pippo
informat_letodms34

Warning: mysql_connect() [function.mysql-connect]: Access denied for user 'censored'@'localhost' (using password: YES) in /home/censored/public_html/adodb/drivers/adodb-mysql.inc.php on line 443


this is the adodb_mysql....function

// returns true or false
function _connect($argHostname, $argUsername, $argPassword, $argDatabasename)
{
if (!empty($this->port)) $argHostname .= ":".$this->port;

if (ADODB_PHPVER >= 0x4300)
$this->_connectionID = mysql_connect($argHostname,$argUsername,$argPassword,
$this->forceNewConnect,$this->clientFlags);
else if (ADODB_PHPVER >= 0x4200)
$this->_connectionID = mysql_connect($argHostname,$argUsername,$argPassword,
$this->forceNewConnect);
else
$this->_connectionID = mysql_connect($argHostname,$argUsername,$argPassword);

if ($this->_connectionID === false) return false;
if ($argDatabasename) return $this->SelectDB($argDatabasename);
return true;
}


question
why istru DIE no run?
regards