I have implemented a simple Composite pattern using SplObjectStorage, like the example above:
class Node
{
private $parent = null;
public function setParent(Composite $parent)
{
$this->parent = $parent;
}
}
class Composite extends Node
{
private $children;
public function __construct()
{
$this->children = new SplObjectStorage;
}
public function add(Node $node)
{
$this->children->attach($node);
$node->setParent($this);
}
}
Whenever I try to serialize a Composite object, PHP 5.3.2 throws me a Segmentation Fault
.
This only happens when I add any number of nodes of any type to the object.
This is the offending code:
$node = new Node;
$composite = new Composite;
$composite->add($node);
echo serialize($composite);
Although this one works:
$node = new Node;
$composite = new Composite;
echo serialize($composite);
Also, if I implement the Composite pattern with array() instead of SplObjectStorage, all runs ok too.
What I'm making wrong?