note 86206 added to class.arrayobject

My need was to create a java-like collection where I could store objects by their DB primary keys while having the standard stack capabilities of adding, retrieving, and removing objects from collection. ArrayObject didn't quite do what I need it to do so I extended it a little.

class GenericCollection extends ArrayObject{
	private $data;
	function __construct(){
		$this->data = new ArrayObject();
	}
	
	function addObject($_id, $_object){
		$_thisItem = new CollectionObject($_id, $_object);
		$this->data->offSetSet($_id, $_thisItem);
	}
	function deleteObject($_id){
		$this->data->offsetUnset($_id);
	}
	function getObject($_id){
		$_thisObject = $this->data->offSetGet($_id);
		return $_thisObject->getObject();
	}
	function printCollection() {
		print_r($this->data);
	}
}

class CollectionObject {
	private $id;
	private $object;
	
	function __construct($_id, $_object){
		$this->id = $_id;
		$this->object = $_object;
	}
	function getObject(){
		return $this->object;
	}
	function printObject() {
		print_r($this);
	}
}

Call it like so:

$u1 = new User/Data/Object (); //whatever, just an object.

$myCollection = new GenericCollection();
$myCollection->addObject(1, $u1);                    
print_r($myCollection->getObject(1));

Now you have a simple and functional collection framework. Add methods in for specific types of sorting, we just didn't need anything other than primary key access. And you can add introspection into the collection object if you need to track what kind of an object it is.

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Manual Page -- http://www.php.net/manual/en/class.arrayobject.php
Edit        -- https://master.php.net/note/edit/86206
Del: integrated  -- https://master.php.net/note/delete/86206/integrated
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Del: non-english -- https://master.php.net/note/delete/86206/non-english
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