For example:

<?php
class Test
{
private $name = 'yarco';
}

$p = new ReflectionPropery('Test', 'name');
print $p->getValue();

?>

This won't work. See: http://www.php.net/manual/en/languag...reflection.php
==================
Note: Trying to get or set private or protected class property's
values will result in an exception being thrown.
==================
But when we use print_r or var_dump, we could see the private member.
Why reflection doesn't support this?
(We have friend class in c++.)

Yarco wrote:
> For example:
>
> <?php
> class Test
> {
> private $name = 'yarco';
> }
>
> $p = new ReflectionPropery('Test', 'name');
> print $p->getValue();
>
> ?>
>
> This won't work. See: http://www.php.net/manual/en/languag...reflection.php
> ==================
> Note: Trying to get or set private or protected class property's
> values will result in an exception being thrown.
> ==================
> But when we use print_r or var_dump, we could see the private member.
> Why reflection doesn't support this?
> (We have friend class in c++.)
>

Because that's the way it works. And there are no friend classes in PHP.

If you want the value of a private variable, you need a non-private
method to get it.

And I suspect the allow print_r() and var_dump() to display the values
because those are debugging aids, while reflection isn't necessarily.

--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
jstucklex@attglobal.net
==================

But when i think of Reflection, it is a method to view everything in
an object(member's type and value).
If it doesn't support private member, we already have such functions
like get_class_XXX...no need reflection.

On Sep 12, 8:13 pm, Jerry Stuckle <jstuck...@attglobal.net> wrote:
> Yarco wrote:
> > For example:
>
> > <?php
> > class Test
> > {
> > private $name = 'yarco';
> > }
>
> > $p = new ReflectionPropery('Test', 'name');
> > print $p->getValue();
>
> > ?>
>
> > This won't work. See:http://www.php.net/manual/en/languag...reflection.php
> > ==================
> > Note: Trying to get or set private or protected class property's
> > values will result in an exception being thrown.
> > ==================
> > But when we use print_r or var_dump, we could see the private member.
> > Why reflection doesn't support this?
> > (We have friend class in c++.)
>
> Because that's the way it works. And there are no friend classes in PHP.
>
> If you want the value of a private variable, you need a non-private
> method to get it.
>
> And I suspect the allow print_r() and var_dump() to display the values
> because those are debugging aids, while reflection isn't necessarily.
>
> --
> ==================
> Remove the "x" from my email address
> Jerry Stuckle
> JDS Computer Training Corp.
> jstuck...@attglobal.net
> ==================

"Yarco" <yarco.w@gmail.com> wrote in message
news:1189656437.305893.202070@r34g2000hsd.googlegr oups.com...
> But when i think of Reflection, it is a method to view everything in
> an object(member's type and value).
> If it doesn't support private member, we already have such functions
> like get_class_XXX...no need reflection.

well, your reflection on Reflection is limited to how oop is supported in
the language you're using. reflection in php is very limited. you can work
around this of course. the only time you can't get the variables and their
respective values is when a class is static and it does not give a means to
get it's instance. otherwise, you can turn the class object's instance into
a string and parse it. this does not give you the ability to do anything to
it's data, but that is not the question at hand.

$object = new Something();
$objectAsString = print_r($object, true);
// code to parse the string version of $object here
// code to do with that information what you will here

php lacks a ton of oop features liked shared interfaces (like a shared
constructor, which is nifty), friend interfaces, nested classes, etc.. maybe
later they'll all be added inclusive of better reflection, but for now
you'll just have to make do.

Yarco wrote:
> On Sep 12, 8:13 pm, Jerry Stuckle <jstuck...@attglobal.net> wrote:
>> Yarco wrote:
>>> For example:
>>> <?php
>>> class Test
>>> {
>>> private $name = 'yarco';
>>> }
>>> $p = new ReflectionPropery('Test', 'name');
>>> print $p->getValue();
>>> ?>
>>> This won't work. See:http://www.php.net/manual/en/languag...reflection.php
>>> ==================
>>> Note: Trying to get or set private or protected class property's
>>> values will result in an exception being thrown.
>>> ==================
>>> But when we use print_r or var_dump, we could see the private member.
>>> Why reflection doesn't support this?
>>> (We have friend class in c++.)
>> Because that's the way it works. And there are no friend classes in PHP.
>>
>> If you want the value of a private variable, you need a non-private
>> method to get it.
>>
>> And I suspect the allow print_r() and var_dump() to display the values
>> because those are debugging aids, while reflection isn't necessarily.
>>
> But when i think of Reflection, it is a method to view everything in
> an object(member's type and value).
> If it doesn't support private member, we already have such functions
> like get_class_XXX...no need reflection.
>

(Top posting fixed)

That's not what reflection is in OO design. PHP has it right.
Reflection allows you to look at a class and see what is *publicly*
available. It is not meant to break encapsulation.

P.S. Please don't top post. Thanks.

--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
jstucklex@attglobal.net
==================

I think steve is right.
But i don't agree with Jerry:
> Reflection allows you to look at a class and see what is *publicly*
> available. It is not meant to break encapsulation.
Reflection should access private members.Or we won't need such a core
feature in php.

On Sep 13, 7:27 pm, Jerry Stuckle <jstuck...@attglobal.net> wrote:
> Yarco wrote:
> > On Sep 12, 8:13 pm, Jerry Stuckle <jstuck...@attglobal.net> wrote:
> >> Yarco wrote:
> >>> For example:
> >>> <?php
> >>> class Test
> >>> {
> >>> private $name = 'yarco';
> >>> }
> >>> $p = new ReflectionPropery('Test', 'name');
> >>> print $p->getValue();
> >>> ?>
> >>> This won't work. See:http://www.php.net/manual/en/languag...reflection.php
> >>> ==================
> >>> Note: Trying to get or set private or protected class property's
> >>> values will result in an exception being thrown.
> >>> ==================
> >>> But when we use print_r or var_dump, we could see the private member.
> >>> Why reflection doesn't support this?
> >>> (We have friend class in c++.)
> >> Because that's the way it works. And there are no friend classes in PHP.
>
> >> If you want the value of a private variable, you need a non-private
> >> method to get it.
>
> >> And I suspect the allow print_r() and var_dump() to display the values
> >> because those are debugging aids, while reflection isn't necessarily.
>
> > But when i think of Reflection, it is a method to view everything in
> > an object(member's type and value).
> > If it doesn't support private member, we already have such functions
> > like get_class_XXX...no need reflection.
> >
>
> (Top posting fixed)
>
> That's not what reflection is in OO design. PHP has it right.
> Reflection allows you to look at a class and see what is *publicly*
> available. It is not meant to break encapsulation.
>
> P.S. Please don't top post. Thanks.
>
> --
> ==================
> Remove the "x" from my email address
> Jerry Stuckle
> JDS Computer Training Corp.
> jstuck...@attglobal.net
> ==================

BTW, what's top post? I reply this on google. Can't see any button
related to this feature.

On Sep 13, 7:27 pm, Jerry Stuckle <jstuck...@attglobal.net> wrote:
> Yarco wrote:
> > On Sep 12, 8:13 pm, Jerry Stuckle <jstuck...@attglobal.net> wrote:
> >> Yarco wrote:
> >>> For example:
> >>> <?php
> >>> class Test
> >>> {
> >>> private $name = 'yarco';
> >>> }
> >>> $p = new ReflectionPropery('Test', 'name');
> >>> print $p->getValue();
> >>> ?>
> >>> This won't work. See:http://www.php.net/manual/en/languag...reflection.php
> >>> ==================
> >>> Note: Trying to get or set private or protected class property's
> >>> values will result in an exception being thrown.
> >>> ==================
> >>> But when we use print_r or var_dump, we could see the private member.
> >>> Why reflection doesn't support this?
> >>> (We have friend class in c++.)
> >> Because that's the way it works. And there are no friend classes in PHP.
>
> >> If you want the value of a private variable, you need a non-private
> >> method to get it.
>
> >> And I suspect the allow print_r() and var_dump() to display the values
> >> because those are debugging aids, while reflection isn't necessarily.
>
> > But when i think of Reflection, it is a method to view everything in
> > an object(member's type and value).
> > If it doesn't support private member, we already have such functions
> > like get_class_XXX...no need reflection.
> >
>
> (Top posting fixed)
>
> That's not what reflection is in OO design. PHP has it right.
> Reflection allows you to look at a class and see what is *publicly*
> available. It is not meant to break encapsulation.
>
> P.S. Please don't top post. Thanks.
>
> --
> ==================
> Remove the "x" from my email address
> Jerry Stuckle
> JDS Computer Training Corp.
> jstuck...@attglobal.net
> ==================

Yarco wrote:
> BTW, what's top post? I reply this on google. Can't see any button
> related to this feature.

Google groups is just a front-end for usenet.
Normally, folks use Thunderbird or Outlook Express to access usenet.

Messages like yours, posted from Google Groups appear somewhat
upside-down when viewed outside of google.