My apologies... this examples better clarifies your point and I must admit
that it is rather strange behaviour :) And I think I forgot that PHP does
do deep copies, probably because I'm so used to writing wrapper objects
with references to my real objects so I automate shallow copies.
Cheers,
Rob.
brad lafountain wrote:
>
>
> I do understand the difference... but it also doesn't say it does a shallow
> copy. because it DOES do a deep copy.... run the following code..
>
> <?
> class foo
> {
> function foo()
> {
> $this->bar = new bar();
> }
> }
>
> class bar
> {
> function bar()
> {
> $this->tmp = "bar";
> }
> function do_nothing()
> {
> }
> }
>
> // As you see no shallow copy!!
> $foo = new foo();
> $foo->bar->tmp = "test";
> $foo2 = $foo;
> $foo2->bar->tmp = "foo";
> var_dump($foo);
> var_dump($foo2);
>
> // now....
> $foo->bar->do_nothing();
> $foo3 = $foo;
> $foo3->bar->tmp = "bug";
> var_dump($foo);
> var_dump($foo3);
> ?>
>
> as soon as a function is called from a objects member.. this is where the
> refrence is created!
>
> - Brad
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