PHP 5.0 passes objects by reference automatically?

[lawrence]

Do I understand correctly that in PHP 5.0 objects will be passed by
reference (by handle, they say) automatically, not as a copy, as
happens with most PHP variables?

[Manuel Lemos]

Hello,

On 07/03/2003 07:33 PM, Toni Schornboeck wrote:

> lawrence wrote:
>

>> Do I understand correctly that in PHP 5.0 objects will be passed by
>> reference (by handle, they say) automatically, not as a copy, as
>> happens with most PHP variables?

>
>
> That's right.
> It will be like in Java - variables are just references (or like Zend
> call them: handles) to objects.
> This will be a big performance improvement!

It is not a real performance improvement. You could always do that in
PHP 4, except that you needed to use the & operator to avoid copying
like this:

$my_object = &new my_class;


--

Regards,
Manuel Lemos

Free ready to use OOP components written in PHP
[url]http://www.phpclasses.org/[/url]

[Zeek]

"Toni Schornboeck" <toni@schornboek.net> wrote in message
news:3f04afef$0$21620$91cee783@newsreader01.highwa y.telekom.at...

> lawrence wrote:

[snip snip]

> is it like java where it would print 5? or does PHP5 is smarter and
> prints 7?

5 ... (apache2+php5b1)

[Wes Bailey]

Unless I am missing something in this code snippet, there isn't any
language that would ever print back 7 since the method Foo is never
invoked. This isn't a property of the language, instead its the
behaviour of you code.

Wes Bailey

>Toni Schornboeck <toni@schornboek.net> wrote in message
> news:<3f04afef$0$21620$91cee783@newsreader01.highw ay.telekom.at>...
> lawrence wrote:

> > Do I understand correctly that in PHP 5.0 objects will be passed by
> > reference (by handle, they say) automatically, not as a copy, as
> > happens with most PHP variables?

>
> That's right.
> It will be like in Java - variables are just references (or like Zend
> call them: handles) to objects.
> This will be a big performance improvement!
>
> I haven't had time to test PHP5, so could someone test this code:
>
>
> class Test
> {
> public $i;
> function __construct($i)
> {
> $this->i=$i;
> }
> }
>
> function foo($obj)
> {
> $obj=new Test(7);
> }
>
> $obj=new Test(5);
> echo $obj->i;
>
> is it like java where it would print 5? or does PHP5 is smarter and
> prints 7?