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]

Re: PHP 5.0 passes objects by reference automatically?

Hello,

On 07/03/2003 07:33 PM, Toni Schornboeck wrote:[color=blue]
> lawrence wrote:
>[color=green]
>> 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?[/color]
>
>
> 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![/color]

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
http://www.phpclasses.org/

[Zeek]

Re: PHP 5.0 passes objects by reference automatically?

"Toni Schornboeck" <toni@schornboe k.net> wrote in message
news:3f04afef$0 $21620$91cee783 @newsreader01.h ighway.telekom. at...[color=blue]
> lawrence wrote:[/color]
[snip snip][color=blue]
> is it like java where it would print 5? or does PHP5 is smarter and
> prints 7?[/color]

5 ... (apache2+php5b1 )

[Wes Bailey]

Re: PHP 5.0 passes objects by reference automatically?

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
[color=blue]
>Toni Schornboeck <toni@schornboe k.net> wrote in message
> news:<3f04afef$ 0$21620$91cee78 3@newsreader01. highway.telekom .at>...
> lawrence wrote:[color=green]
> > 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?[/color]
>
> 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?[/color]