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Re: out of sheer curiosity... [message #177540 is a reply to message #177539] Sun, 08 April 2012 21:15 Go to previous messageGo to previous message
Jerry Stuckle is currently offline  Jerry Stuckle
Messages: 2598
Registered: September 2010
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On 4/8/2012 4:50 PM, M. Strobel wrote:
> Am 29.03.2012 22:11, schrieb Jerry Stuckle:
>> On 3/29/2012 10:21 AM, Erwin Moller wrote:
>>> On 3/29/2012 3:39 PM, Jerry Stuckle wrote:
>>>> On 3/29/2012 8:33 AM, Erwin Moller wrote:
>>>> > On 3/29/2012 12:46 PM, The Natural Philosopher wrote:
>>>
>>> <snip>
>>>
>>>> >> Its just another way of doing things and I let my understanding of the
>>>> >> problem guide me, not a set of arbitrary rules.
>>>> >
>>>> > As it should!
>>>> >
>>>> > But what 'rules' are you referring to?
>>>> >
>>>> > PHP's OO is pretty straightforward.
>>>> > I think they did a decent job implementing OO.(php 5 that is)
>>>> >
>>>> > Creating smart classes is up to the programmer.
>>>> > I am not aware of any extra 'rules'.
>>>> >
>>>> > Are you maybe referring to all kinds of design patterns scattered around
>>>> > the web?
>>>> > (In which case I tend to agree, because implementing other people's
>>>> > solutions can take the fun out of programming. But reading them never
>>>> > hurts. And when you agree to a certain approach you can even decide to
>>>> > follow it yourself. It is all up to you, the programmer.)
>>>> >
>>>>
>>>> Any rules TNP doesn't bother to understand are "arbitrary" in his mind.
>>>> He doesn't even like having to follow PHP syntax rules - as he has also
>>>> said in the past.
>>>>
>>>> But I disagree that PHP 5's implementation of OO is decent. I think it's
>>>> half-assed at best. Truly written by people who have no understanding of
>>>> OO. But then that can be said of a lot of PHP.
>>>>
>>>
>>> Jerry,
>>>
>>> What are your main objections to the PHP5's OO approach?
>>>
>>> For myself: I must say I love its simplicity.
>>> (Simplicity is a Good Thing in my opinion.)
>>>
>>>
>>
>> Well, to start with, the lack of function overloading. It is quite a good feature to
>> be able to overload functions - especially constructors. And because of that, you
>> have to run through all kinds of hoops when doing things like storing an object in
>> the $_SESSION.
>>
>> Even then it doesn't work. When you store an object in the $_SESSION, the object's
>> destructor is called at the end of the script, but on the next script the constructor
>> is never called. A direct violation of OO principles.
>
> Works fine here. Test script:
> #!/usr/local/bin/php
> <?php
>
> class C1 {
> public $var1 = 'M.';
> public $var2 = 'Strobel';
> function __construct() {
> echo "\t--> call ". __METHOD__.PHP_EOL;
> }
> function __destruct() {
> echo "\t--> call ". __METHOD__.PHP_EOL;
> }
> function __sleep() {
> echo "\t--> call ". __METHOD__.PHP_EOL;
> return array('var1','var2');
> }
> function __wakeup() {
> echo "\t--> call ". __METHOD__.PHP_EOL;
> }
> } // end class C1
>
> echo "----- creating class\n";
> $c = new C1;
> echo "----- serializing class\n";
> $ser = serialize($c);
> echo "----- deserializing class\n";
> $cc = unserialize($ser);
> echo "----- deleting first class\n";
> unset($c);
> echo "----- deleting unserialized class\n";
> unset($cc);
> exit(0);
> #-----------------------
>
> Result:
> strobel@s114-intel:~/projekte/PHP> ./magicmethods.php
> ----- creating class
> --> call C1::__construct
> ----- serializing class
> --> call C1::__sleep
> ----- deserializing class
> --> call C1::__wakeup
> ----- deleting first class
> --> call C1::__destruct
> ----- deleting unserialized class
> --> call C1::__destruct
>
> What exactly did you criticize?
>
> /Str.

Look at it again. You have two destructor calls but only one
constructor call. A direct violation of OO principles.

And BTW - I said nothing about serializing.

You really do need to learn to read.

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

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