What are the potential pitfalls of using the Prototype Pattern in PHP, especially in terms of object cloning?

One potential pitfall of using the Prototype Pattern in PHP is that object cloning can lead to unexpected behavior if the cloned object contains references to other objects. To avoid this issue, you can implement a deep copy method in your prototype class that recursively clones all referenced objects. 

class Prototype {
    public $property;
    public $referencedObject;

    public function __clone() {
        $this->referencedObject = clone $this->referencedObject;
    }

    public function deepCopy() {
        $clone = clone $this;
        $clone->referencedObject = clone $this->referencedObject;
        return $clone;
    }
}

Keywords

Prototype Pattern PHP object cloning shallow copy deep copy

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