Object Oriented PHP

[Water Cooler v2]

I am new to PHP, just one day new. But I am otherwise a seasoned
programmer on many other languages like C, VB 6, C#, VB.NET, Win32
platform and have some tiny bit experience in MFC, C++, Python.

All the tutorials I read so far about PHP contain procedural examples.
I haven't yet come accross a tutorial on the object oriented PHP. Could
someone point me to one?

[Dikkie Dik]

Re: Object Oriented PHP

Not a tutorial, but an example:

http://www.w-p.dds.nl/tinyunit.htm

Water Cooler v2 wrote:[color=blue]
> I am new to PHP, just one day new. But I am otherwise a seasoned
> programmer on many other languages like C, VB 6, C#, VB.NET, Win32
> platform and have some tiny bit experience in MFC, C++, Python.
>
> All the tutorials I read so far about PHP contain procedural examples.
> I haven't yet come accross a tutorial on the object oriented PHP. Could
> someone point me to one?
>[/color]

[Water Cooler v2]

Re: Object Oriented PHP

I've seen the C++ scope resolution operator used in some place in PHP
code. I do not recall where I saw it.

What's that (::) for? Does it have the same use as in C++?

[NC]

Re: Object Oriented PHP

Water Cooler v2 wrote:[color=blue]
>
> All the tutorials I read so far about PHP contain procedural examples.
> I haven't yet come accross a tutorial on the object oriented PHP. Could
> someone point me to one?[/color]

Start with the Manual:

http://www.php.net/OOP

http://www.php.net/OOP5

Note that there are differences between PHP 4 and PHP 5 when it comes
to OO syntax.

Cheers,
NC

[NC]

Re: Object Oriented PHP

Water Cooler v2 wrote:[color=blue]
>
> What's that (::) for? Does it have the same use as in C++?[/color]

It's all in the Manual:

http://www.php.net/manual/en/keyword.paamayim-nekudotayim.php

http://www.php.net/manual/en/language.oop5.paamayim-nekudotayim.php

Cheers,
NC

[Water Cooler v2]

Re: Object Oriented PHP

Thanks very much. :-)

[william.clarke]

Re: Object Oriented PHP


Water Cooler v2 wrote:[color=blue]
> Thanks very much. :-)[/color]

Here's an OO versus Procedural example of making a MySQLi connection

http://au.php.net/manual/en/function.mysqli-prepare.php

[Henk Verhoeven]

Re: Object Oriented PHP

Water Cooler v2 wrote:
[color=blue]
> Thanks very much. :-)
>[/color]
You can olso read

http://www-128.ibm.com/developerworks/opensource/library/os-php-flexobj/?ca=dgr-lnxw01DynamicPHP

http://www.onlamp.com/pub/a/php/2005/06/16/overloading.html

The thread "PHP Dynamic Database Code" started by josh.kuo@gmail. com on
Fri, 9 Jun 2006 23:13:21 +0000 (UTC) (from which i have the above urls)
may also be interesting.

Once you have a reasonable understanding of the basics of OOP, you could
take a look at the examples/turorial of phpPeanuts, experiment with it
and dig into its code using the hypercode browsers to try to understand
how the framework works. It's very OO ;-)

Greetings,

Henk Verhoeven,
www.phpPeanuts.org.

[NC]

Re: Object Oriented PHP

427SOHC wrote:[color=blue]
>
> If I haven't worked with OOP much would PHP be a safe
> starting point, or is there a better programming language
> to start with?[/color]

If you haven't worked with OOP before, start by learning OOP in the
language you otherwise know well. Once you understand the basic
concepts (encapsulation, inheritance, polymorphism, etc.), you will be
able to ask intelligent questions about how those concepts are
implemented in other languages.

Also, note that PHP 4 and PHP 5 have different object models; the one
in PHP 5 is more in line with what you find in other languages, while
the one in PHP 4 is simpler, but more restrictive.

Cheers,
NC

[Tony Marston]

Re: Object Oriented PHP


"NC" <nc@iname.com > wrote in message
news:1151127795 .486389.113090@ b68g2000cwa.goo glegroups.com.. .[color=blue]
> 427SOHC wrote:[color=green]
>>
>> If I haven't worked with OOP much would PHP be a safe
>> starting point, or is there a better programming language
>> to start with?[/color]
>
> If you haven't worked with OOP before, start by learning OOP in the
> language you otherwise know well. Once you understand the basic
> concepts (encapsulation, inheritance, polymorphism, etc.), you will be
> able to ask intelligent questions about how those concepts are
> implemented in other languages.
>
> Also, note that PHP 4 and PHP 5 have different object models; the one
> in PHP 5 is more in line with what you find in other languages, while
> the one in PHP 4 is simpler, but more restrictive.[/color]

"More restrictive" is a point of view. It is possible to write OO code in
PHP 4 that also runs in PHP 5, as I have proved with my sample application
and later my full-blown framework.

AFAIAC the extra OO features in PHP 5 are nothing more than eye candy as
they do not provide any additional functionality which is worthy of merit.
They were only included to appease the OO purists.

--
Tony Marston

http://www.tonymarston.net

http://www.radicore.org

[Jerry Stuckle]

Re: Object Oriented PHP

Tony Marston wrote:[color=blue]
> "NC" <nc@iname.com > wrote in message
> news:1151127795 .486389.113090@ b68g2000cwa.goo glegroups.com.. .
>[color=green]
>>427SOHC wrote:
>>[color=darkred]
>>>If I haven't worked with OOP much would PHP be a safe
>>>starting point, or is there a better programming language
>>>to start with?[/color]
>>
>>If you haven't worked with OOP before, start by learning OOP in the
>>language you otherwise know well. Once you understand the basic
>>concepts (encapsulation, inheritance, polymorphism, etc.), you will be
>>able to ask intelligent questions about how those concepts are
>>implemented in other languages.
>>
>>Also, note that PHP 4 and PHP 5 have different object models; the one
>>in PHP 5 is more in line with what you find in other languages, while
>>the one in PHP 4 is simpler, but more restrictive.[/color]
>
>
> "More restrictive" is a point of view. It is possible to write OO code in
> PHP 4 that also runs in PHP 5, as I have proved with my sample application
> and later my full-blown framework.
>
> AFAIAC the extra OO features in PHP 5 are nothing more than eye candy as
> they do not provide any additional functionality which is worthy of merit.
> They were only included to appease the OO purists.
>[/color]

Actually, things like private declarations are very important. They are
unimportant only to those who don't understand OO programming - or those who are
sloppy in their implementations .



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

[Tony Marston]

Re: Object Oriented PHP


"Jerry Stuckle" <jstucklex@attg lobal.net> wrote in message
news:25Sdne4XpP 1UCADZnZ2dnUVZ_ vmdnZ2d@comcast .com...[color=blue]
> Tony Marston wrote:[color=green]
>> "NC" <nc@iname.com > wrote in message
>> news:1151127795 .486389.113090@ b68g2000cwa.goo glegroups.com.. .
>>[color=darkred]
>>>427SOHC wrote:
>>>
>>>>If I haven't worked with OOP much would PHP be a safe
>>>>starting point, or is there a better programming language
>>>>to start with?
>>>
>>>If you haven't worked with OOP before, start by learning OOP in the
>>>language you otherwise know well. Once you understand the basic
>>>concepts (encapsulation, inheritance, polymorphism, etc.), you will be
>>>able to ask intelligent questions about how those concepts are
>>>implemente d in other languages.
>>>
>>>Also, note that PHP 4 and PHP 5 have different object models; the one
>>>in PHP 5 is more in line with what you find in other languages, while
>>>the one in PHP 4 is simpler, but more restrictive.[/color]
>>
>>
>> "More restrictive" is a point of view. It is possible to write OO code in
>> PHP 4 that also runs in PHP 5, as I have proved with my sample
>> application and later my full-blown framework.
>>
>> AFAIAC the extra OO features in PHP 5 are nothing more than eye candy as
>> they do not provide any additional functionality which is worthy of
>> merit. They were only included to appease the OO purists.
>>[/color]
>
> Actually, things like private declarations are very important. They are
> unimportant only to those who don't understand OO programming - or those
> who are sloppy in their implementations .[/color]

You don't *need* private declarations. Code will work just as well without
them.

--
Tony Marston

http://www.tonymarston.net

http://www.radicore.org

[David Haynes]

Re: Object Oriented PHP

Tony Marston wrote:[color=blue]
> "Jerry Stuckle" <jstucklex@attg lobal.net> wrote in message[color=green]
>> Actually, things like private declarations are very important. They are
>> unimportant only to those who don't understand OO programming - or those
>> who are sloppy in their implementations .[/color]
>
> You don't *need* private declarations. Code will work just as well without
> them.
>[/color]

What the heck! Let's just throw away multiply and divide. We don't
*need* them. We can just use add and subtract.

Heck! Why do we need subtract? We can just add negative values.

Hey! Assembler works well without private declarations. Let's just pitch
PHP all together.

The point is that constructs are added to language to assist in the
functionality and maintainability of programs written in that language.
The introduction of private and protected adds to the maintainability
both through its inherent protection capabilities and its clarity of
intent for the maintainer.

Now if PHP could just get polymorphism...

-david-

[IchBin]

Re: Object Oriented PHP

David Haynes wrote:[color=blue]
> Tony Marston wrote:[color=green]
>> "Jerry Stuckle" <jstucklex@attg lobal.net> wrote in message[color=darkred]
>>> Actually, things like private declarations are very important. They
>>> are unimportant only to those who don't understand OO programming -
>>> or those who are sloppy in their implementations .[/color]
>>
>> You don't *need* private declarations. Code will work just as well
>> without them.
>>[/color]
>
> What the heck! Let's just throw away multiply and divide. We don't
> *need* them. We can just use add and subtract.
>
> Heck! Why do we need subtract? We can just add negative values.
>
> Hey! Assembler works well without private declarations. Let's just pitch
> PHP all together.
>
> The point is that constructs are added to language to assist in the
> functionality and maintainability of programs written in that language.
> The introduction of private and protected adds to the maintainability
> both through its inherent protection capabilities and its clarity of
> intent for the maintainer.
>
> Now if PHP could just get polymorphism...
>
> -david-
>[/color]

Sorry I am new to PHP but use Java. My question is how can you have a
OOP Language and not have polymorphic features. Sorry, I have not gotten
up to par on PHP yet.

Thanks in Advance...
IchBin, Pocono Lake, Pa, USA http://weconsultants.awardspace.com
_______________ _______________ _______________ _______________ ______________

'If there is one, Knowledge is the "Fountain of Youth"'
-William E. Taylor, Regular Guy (1952-)

[Jerry Stuckle]

Re: Object Oriented PHP

IchBin wrote:[color=blue]
> David Haynes wrote:
>[color=green]
>> Tony Marston wrote:
>>[color=darkred]
>>> "Jerry Stuckle" <jstucklex@attg lobal.net> wrote in message
>>>
>>>> Actually, things like private declarations are very important. They
>>>> are unimportant only to those who don't understand OO programming -
>>>> or those who are sloppy in their implementations .
>>>
>>>
>>> You don't *need* private declarations. Code will work just as well
>>> without them.
>>>[/color]
>>
>> What the heck! Let's just throw away multiply and divide. We don't
>> *need* them. We can just use add and subtract.
>>
>> Heck! Why do we need subtract? We can just add negative values.
>>
>> Hey! Assembler works well without private declarations. Let's just
>> pitch PHP all together.
>>
>> The point is that constructs are added to language to assist in the
>> functionality and maintainability of programs written in that
>> language. The introduction of private and protected adds to the
>> maintainability both through its inherent protection capabilities and
>> its clarity of intent for the maintainer.
>>
>> Now if PHP could just get polymorphism...
>>
>> -david-
>>[/color]
>
> Sorry I am new to PHP but use Java. My question is how can you have a
> OOP Language and not have polymorphic features. Sorry, I have not gotten
> up to par on PHP yet.
>
> Thanks in Advance...
> IchBin, Pocono Lake, Pa, USA http://weconsultants.awardspace.com
> _______________ _______________ _______________ _______________ ______________
>
> 'If there is one, Knowledge is the "Fountain of Youth"'
> -William E. Taylor, Regular Guy (1952-)[/color]

PHP does have some polymorphic-like abilities, but that's because of the untyped
nature of the variables.

PHP is getting better in it's OO aspects, but I doubt it will ever be quite like
Java. There's just a basic difference between languages with typed and untyped
variables.


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