On Wed, 2002-02-13 at 12:24, Andi Gutmans wrote:
> >$obj=new test();
>
> $obj == is_ref=1/refcount=1
>
> >debug_zval_dump($obj);
>
> You are passing $obj by value. So inside the debug_zval_dump() it will be
> is_ref=0/refcount=1 (it will be copied).
>
>
> >$obj->do_something();
>
> Inside do_something it will be is_ref=1/refcount=2
>
> >debug_zval_dump($obj);
>
> You are passing $obj by value. So inside the debug_zval_dump() it will be
> is_ref=0/refcount=1 (it will be copied).
>
> Bottom line: Passing it by value makes it duplicate. This is Engine 1.
> Nothing to do about it. I guess debug_zval_dump() isn't that useful after
> all :)
>
> Andi
Yes I do realize that the function would copy the value; however, I
would think the output before and after $obj->do_something would be
equal The problem I was mainly refering to is the reference count of
the properties elements. Why would it grow from 2 to 3 after the call to
$obj->do_somtehing? Why does the reference count of the object drop from
2 to 1 after the function is called?
If I remove the line $obj->do_something I get the following.
object(test)(1) refcount(2){
["dummy"]=>
long(1) refcount(2)
}
object(test)(1) refcount(2){
["dummy"]=>
long(1) refcount(2)
}
Perhaps I am missing something obvious?
>
> >This will produce the following output:
> >
> >object(test)(1) refcount(2){
> > ["dummy"]=>
> > long(1) refcount(2)
> >}
> >Hello
> >object(test)(1) refcount(1){
> > ["dummy"]=>
> > long(1) refcount(3)
> >}
> >
> >ZEND_SEND_VAR is the opcode that does this in this scenario as well
> >
> >
> >
> >
> >-jason
> >
> >
> >
> >--
> >Jason T. Greene
> >Internet Software Engineer
> >
> ><[EMAIL PROTECTED]>
> ><[EMAIL PROTECTED]>
> ><[EMAIL PROTECTED]>
> >
> >Use PHP: http://www.php.net
>
>
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--
Jason T. Greene
Internet Software Engineer
<[EMAIL PROTECTED]>
<[EMAIL PROTECTED]>
<[EMAIL PROTECTED]>
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