dynamic object instances

Hello List, I would like to create an object inside a function with its classname and a parameter list submitted by the function call. function create($class, $parameter) { $obj = new $class($parameter); return $obj; } This is working very well. But I have not every time the same count of parameters for a class constructor. If this is a normal method call of an object I can realise it like this: $ret = call_user_func_array(array(&$obj, 'method'), $parameter_array); The $parameter_array contains as many entries as the function needs. Works well too. But how can I write a function to instance objects with various count of parameters in the constructor? I know, can do this with an eval. But I would like to find a solution where I don't need an eval. thanks for all answers, Thomas