If a class inherits a method from a parent function and you call the parent method from the inherited class you cannot refer to variables referred in the inherited class. Is there a language construct to refer to the calling class inside a method?
The example will explain it better: <?php class db { static function query() { echo self::$connString; } } class dbOne extends db { protected $connString = 'host=localhost blablla'; } echo dbOne::query(); ?> And it generates: Fatal error: Access to undeclared static property: db::$connString in /var/dev/jalonso.gea/app/db_new.php on line 6 I know this has been brought before but I don't remember if there is any workaround besides redefining the method in the inherited class and passing the parent class it's name, which is what I am doing currently: <?php class db { static function query($connString) { echo $connString; } } class dbOne extends db { protected $connString = 'host=localhost blablla'; static function query() { return parent::query(self::$connString); } } echo dbOne::query(); ?> Regards, Juan Alonso