[PHP] Q on Class and EXTEND

[Jswalter]

> -----Original Message-----

> From: Matt Matijevich [mailto:matijevich@alliancetechnologies.net]
> Sent: Wednesday, September 03, 2003 11:21 AM
> To: [email]php-general@lists.php.net[/email]; [email]jsWalter@torres.ws[/email]
> Subject: Re: [PHP] Q on Class and EXTEND
>
>
> I dont know much about classes, but dont you want
>
> $a = new THECHILD('walter'); //so you can access $a->abc
>
> instead of
>
> $a = new THEPARENT ('walter');

No, I'm wanting to EXTEND the orginal class.

meaning, my THECHILD class efines new methods/properties, and I want it used
as if it was part of the orginal THEPARENT Class.

Me just being picky.

Walter

[John W. Holmes]

jsWalter wrote:

>>-----Original Message-----
>>From: Matt Matijevich [mailto:matijevich@alliancetechnologies.net]
>>
>>I dont know much about classes, but dont you want
>>
>>$a = new THECHILD('walter'); //so you can access $a->abc
>>
>>instead of
>>
>>$a = new THEPARENT ('walter');

>
>
> No, I'm wanting to EXTEND the orginal class.
>
> meaning, my THECHILD class efines new methods/properties, and I want it used
> as if it was part of the orginal THEPARENT Class.
>
> Me just being picky.

It doesn't work that way, exactly. The child class can define new
methods and properties, but you must make an instance of the child
class, which will include the methods/properties from the parent, and
the new ones you have written.

If I'm understanding you correctly, you could rename you parent class to
child, name the child class the same as your parent and have the "old
class" extend the "new class" you've written. You code should then work
the same, but have the new methods/properties available.

--
---John Holmes...

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[Chris Sherwood]

<-- snip -->

> > I dont know much about classes, but dont you want
> >
> > $a = new THECHILD('walter'); //so you can access $a->abc
> >
> > instead of
> >
> > $a = new THEPARENT ('walter');

>
> No, I'm wanting to EXTEND the orginal class.
>
> meaning, my THECHILD class efines new methods/properties, and I want it

used

> as if it was part of the orginal THEPARENT Class.
>
> Me just being picky.
>
> Walter

<-- snip -->

walter you want to do a declaration in the class that you want to use the
base class in ie


when you declare your child class

class Web_child extends WEB_parent
{
-- your new and extended code here
}

[Jswalter]

"John W. Holmes" <holmes072000@charter.net> wrote in message
news:3F561CF1.3000100@charter.net...

> jsWalter wrote:

> > I'm wanting to EXTEND the orginal class.
> >
> > meaning, my THECHILD class efines new methods/properties, and I want it

used

> > as if it was part of the orginal THEPARENT Class.
> >
> > Me just being picky.

>
> It doesn't work that way, exactly. The child class can define new
> methods and properties, but you must make an instance of the child
> class, which will include the methods/properties from the parent, and
> the new ones you have written.
>
> If I'm understanding you correctly, you could rename you parent class to
> child, name the child class the same as your parent and have the "old
> class" extend the "new class" you've written. You code should then work
> the same, but have the new methods/properties available.

What I am trying to do is EXTEND the PEAR::Auth Class with new properties
and methods.

But I still want to use the original instantiation call...

$myAuth =& Auth();

So, I don't think I can rename the orginal Class in this case.

I'm just being particular.

Or do I have to create my new EXTENDED Class and then add code to PEAR::Auth
to make it work as if it is always just Auth? (I was told I could not do
that)

Thanks

Walter

[Chris Boget]

> What I am trying to do is EXTEND the PEAR::Auth Class with new properties

> and methods.

Ok.

> But I still want to use the original instantiation call...
> $myAuth =& Auth();

Which is instantiating the parent class.
From what I understand of your question, you are wanting to instantiate the
parent which, in turn, somehow calls upon (or instantiats) the child simply
because the child EXTENDS the parent? Is that correct?
If so, I don't believe this type of functionality/feature exists in any language,
much less PHP. Am I wrong?

Chris

[Raquel Rice]

On Wed, 3 Sep 2003 10:05:46 -0700
"Chris Sherwood" <csherwood@nortialearning.com> wrote:

>
> <-- snip -->

> > > I dont know much about classes, but dont you want
> > >
> > > $a = new THECHILD('walter'); //so you can access $a->abc
> > >
> > > instead of
> > >
> > > $a = new THEPARENT ('walter');

> >
> > No, I'm wanting to EXTEND the orginal class.
> >
> > meaning, my THECHILD class efines new methods/properties, and I
> > want it

> used

> > as if it was part of the orginal THEPARENT Class.
> >
> > Me just being picky.
> >
> > Walter

> <-- snip -->
>
> walter you want to do a declaration in the class that you want to
> use the base class in ie
>
>
> when you declare your child class
>
> class Web_child extends WEB_parent
> {
> -- your new and extended code here
> }
>

and then ... to access the class methods and variables of the
parent, you do it through the child.

class THEPARENT
var $originalthis;
function THEPARENT(){
}
}

class THECHILD extends THEPARENT
var $this;
function THECHILD($that) {
$this->this = $that;
}
}

// outside the class
$clss = new THECHILD($thatvar);
$clss->originalthis = 'how about that';

--
Raquel
================================================== ==========
Let no man imagine that he has no influence. Whoever he may be, and
wherever he may be placed, the man who thinks becomes a light and a
power.
--Henry George

--
Raquel
================================================== ==========
Let no man imagine that he has no influence. Whoever he may be, and
wherever he may be placed, the man who thinks becomes a light and a
power.
--Henry George