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Posted by Jerry Stuckle on 09/28/07 03:49
gosha bine wrote:
> Summercool wrote:
>> On Sep 27, 8:43 am, gosha bine <stereof...@gmail.com> wrote:
>>
>>> The manual is incorrect at this point. Object variables in php5 are
>>> assigned by value, just like in php4, but this very value is different
>>> in php5 - it's a pointer to the object, not the object itself. But this
>>> is essentially another story and has nothing to do with references.
>>>
>>> --
>>> gosha bine
>>
>> i think pointer and reference are the same thing, like in Java and
>> Ruby.
>
Not at all. I don't know about Ruby, but Java doesn't have pointers.
> The term "reference" can be used in the generic sense, describing a
> value that is used to access another value. In this sense, a pointer is
> a (kind of) reference. However, in c++ and php the word "reference" has
> another meaning, and describes some specific construct, that has nothing
> to do with pointers. Object variables in php5 are pointers and not
> references (in c++/php sense).
>
And that thinking really screws people up when the difference is important.
It's like an integer 1 and floating point 1.0. In many cases it's fine.
But not always.
>> In PHP, what the manual calls "reference" is actually not a reference
>> in other languages... it is like an alias or (a nickname).
>>
>
> Good that you understand this. It means your original problem is cleared
> up. ;)
>
>
>
--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
jstucklex@attglobal.net
==================
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