Как выполнить итерацию аутентификации для приложения IIS7 В PowerShell

I'm trying to design a PHP object (call it Incident_Collection) that will hold a collection of other objects each of which implement an Incident interface.

incident_date;
  }

}
?>

At first I figured I'd just make my Incident_Collection implement IteratorAggregate and store the Incident objects in an array property of the collection:

collection);    
  }

  public function sort(){
     //sort by $incident->when() values in $this->collection
  }

  /*also __get($var), __set($var,$value), add(Incident $object), remove(Incident $object) and other functions*/
}
?>

But because Incident objects have a natural order, I thought perhaps extending one of the SPL Data Structures might be more appropriate/efficient. But which one? I'm not very clear about when to use a particular data structure.

Another wrinkle is that there may be restrictions on an Incident_Collection. For example, if there were a Person object who had an Incident_Collection, perhaps the following restrictions might apply:

• only 1 Birth incident
• if Birth exists, it must be the earliest incident in the collection
• only 1 Death incident
• if Death exists, it must be the last incident in the collection
• HS_Graduation must come after HS_Begin

Would it be better to have a generic Incident_Collection that accepts a set of restrictions from its owner (e.g. Person), or a subclassed Person_Incident_Collection?