کد‌های زیر نمونه ای از deep clone هست:

با استفاده از متد 

public function __clone()
	{
	#
	}

پراپرتی هایی که خودشان هم کلاس یک شی از یک کلاس هستن رو معرفی کرد تا موقع clone اونها رو هم بشناسه.

مثال:

<?php
class Address
{
	public $street;
	public $city;
}
class Person
{
	public $name;
	public $address;
	public function __construct($name)
	{
		$this->name = $name;
		$this->address = new Address();
	}
	public function __clone()
	{
		$this->address = clone $this->address;
	}
}
$bob = new Person('Bob');
$bob->address->street = 'North 1st Street';
$bob->address->city = 'San Jose';
$alex = clone $bob;
$alex->name = 'Alex';
$alex->address->street = '1 Apple Park Way';
$alex->address->city = 'Cupertino';
var_dump($bob);
var_dump(

object(Person)#1 (2) {
  ["name"]=> string(3) "Bob"
  ["address"]=> object(Address)#2 (2) {
    ["street"]=> string(16) "North 1st Street"
    ["city"]=> string(8) "San Jose"
  }
}
object(Person)#3 (2) {
  ["name"]=> string(4) "Alex"
  ["address"]=> object(Address)#4 (2) {
    ["street"]=> string(16) "1 Apple Park Way"
    ["city"]=> string(9) "Cupertino"
  }
}