class myPDO extends PDO{
    var $myOwnCount =0;
    public function __construct($location,$user,$pass)
    {
        parent::__construct($location,$user,$pass);
    } 
    public function exec($q){
        $this->myOwnCount ++;
        return parent::exec($s);
    }
    public function query($q){
        $this->myOwnCount ++;
        return parent::query($s);
    }
}

Warning: Invalid argument supplied for foreach() in C:\xampp\htdocs\...\functions.php on line 52
Fatal error: Call to a member function fetch() on a non-object in C:\xampp\htdocs\...\index.php on line 69

$dataBase = new myPDO($location, $user, $pass);

$dataBase = new PDO($location, $user, $pass);

$sql = $database->query("SELECT id,title FROM general");
foreach ($sql as $general)
    $generalData[$general["id"]] = $g["title"];

public function query($q){
     $this->myOwnCount ++;
     return parent::query($s);
}