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Re: out of sheer curiosity... [message #177624 is a reply to message #177620]

Tue, 10 April 2012 23:53

Jerry Stuckle
Messages: 2598
Registered: September 2010

Karma:

Senior Member

On 4/10/2012 6:13 PM, Thomas Mlynarczyk wrote:
> Jerry Stuckle schrieb:
>
>> I no longer even try to store objects in the session. It's hopeless.
>
> Why? I never had any real problems with storing objects in the session.
> Or maybe I was just lucky ;-)
>
>> For instance - what if one of the things your object needs is a
>> database connection? And what if you have several objects using that
>> same connection? There is no way to pass an existing database
>> connection to __wakeup(). You either have to use a global variable,
>> restricting variable names in the rest of your code and limiting
>> flexibility, or create a new connection in the __wakeup() call or
>> remember to call another method to set the database connection after
>> unserializing the object.
>
> MyDatabaseSingleton::getInstance() ?
>

What if you don't want a singleton? Many times I've had the need to
access different databases, for instance. You are limiting the
versatility of the class.

>> None are good answers - but all could be easily handled with proper
>> use of constructors.
>
> And how would a "proper use of constructors" solve the above problem?
> Even if unserialize() called __construct(), you would have no chance to
> pass any arguments to the constructor.
>
> Greetings,
> Thomas
>

By definition you can pass arguments to the constructor. That's why
unserialize() is not a good implementation.

--
==================
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Jerry Stuckle
JDS Computer Training Corp.
jstucklex(at)attglobal(dot)net
==================

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[Message index]

		out of sheer curiosity... By: Leonardo Azpurua on Tue, 27 March 2012 17:01
		Re: out of sheer curiosity... By: alvaro.NOSPAMTHANX on Tue, 27 March 2012 17:06
		Re: out of sheer curiosity... By: Leonardo Azpurua on Tue, 27 March 2012 17:34
		Re: out of sheer curiosity... By: Thomas 'PointedEars' on Wed, 28 March 2012 19:12
		Re: out of sheer curiosity... By: Leonardo Azpurua on Thu, 29 March 2012 00:53
		Re: out of sheer curiosity... By: M. Strobel on Thu, 29 March 2012 08:00
		Re: out of sheer curiosity... By: Leonardo Azpurua on Thu, 29 March 2012 09:53
		Re: out of sheer curiosity... By: The Natural Philosoph on Thu, 29 March 2012 10:46
		Re: out of sheer curiosity... By: M. Strobel on Thu, 29 March 2012 12:02
		Re: out of sheer curiosity... By: Erwin Moller on Thu, 29 March 2012 12:33
		Re: out of sheer curiosity... By: The Natural Philosoph on Thu, 29 March 2012 13:37
		Re: out of sheer curiosity... By: Erwin Moller on Thu, 29 March 2012 13:59
		Re: out of sheer curiosity... By: The Natural Philosoph on Thu, 29 March 2012 16:58
		Re: out of sheer curiosity... By: Jerry Stuckle on Thu, 29 March 2012 13:39
		Re: out of sheer curiosity... By: Erwin Moller on Thu, 29 March 2012 14:21
		Re: out of sheer curiosity... By: The Natural Philosoph on Thu, 29 March 2012 17:09
		Re: out of sheer curiosity... By: Tim Streater on Thu, 29 March 2012 21:07
		Re: out of sheer curiosity... By: M. Strobel on Thu, 29 March 2012 21:43
		Re: out of sheer curiosity... By: The Natural Philosoph on Fri, 30 March 2012 03:52
		Re: out of sheer curiosity... By: Jerry Stuckle on Thu, 29 March 2012 20:11
		Re: out of sheer curiosity... By: Tim Streater on Thu, 29 March 2012 21:01
		Re: out of sheer curiosity... By: Jerry Stuckle on Thu, 29 March 2012 23:29
		Re: out of sheer curiosity... By: M. Strobel on Sun, 08 April 2012 20:50
		Re: out of sheer curiosity... By: Jerry Stuckle on Sun, 08 April 2012 21:15
		Re: out of sheer curiosity... By: M. Strobel on Sun, 08 April 2012 22:39
		Re: out of sheer curiosity... By: The Natural Philosoph on Sun, 08 April 2012 23:59
		Re: out of sheer curiosity... By: Jerry Stuckle on Mon, 09 April 2012 00:28
		Re: out of sheer curiosity... By: Jerry Stuckle on Mon, 09 April 2012 00:24
		Re: out of sheer curiosity... By: M. Strobel on Mon, 09 April 2012 09:29
		Re: out of sheer curiosity... By: Jerry Stuckle on Mon, 09 April 2012 12:27
		Re: out of sheer curiosity... By: Thomas Mlynarczyk on Mon, 09 April 2012 13:20
		Re: out of sheer curiosity... By: Jerry Stuckle on Mon, 09 April 2012 16:03
		Re: out of sheer curiosity... By: Thomas Mlynarczyk on Mon, 09 April 2012 18:04
		Re: out of sheer curiosity... By: Jerry Stuckle on Mon, 09 April 2012 18:37
		Re: out of sheer curiosity... By: Thomas Mlynarczyk on Mon, 09 April 2012 20:50
		Re: out of sheer curiosity... By: Jerry Stuckle on Tue, 10 April 2012 00:17
		Re: out of sheer curiosity... By: M. Strobel on Tue, 10 April 2012 08:05
		Re: out of sheer curiosity... By: Thomas Mlynarczyk on Tue, 10 April 2012 11:28
		Re: out of sheer curiosity... By: M. Strobel on Tue, 10 April 2012 16:54
		Re: out of sheer curiosity... By: Thomas Mlynarczyk on Tue, 10 April 2012 18:10
		Re: out of sheer curiosity... By: M. Strobel on Tue, 10 April 2012 18:23
		Re: out of sheer curiosity... By: Thomas Mlynarczyk on Tue, 10 April 2012 21:17
		Re: out of sheer curiosity... By: Jerry Stuckle on Tue, 10 April 2012 21:11
		Re: out of sheer curiosity... By: Thomas Mlynarczyk on Tue, 10 April 2012 21:30
		Re: out of sheer curiosity... By: Jerry Stuckle on Tue, 10 April 2012 23:43
		Re: out of sheer curiosity... By: Jerry Stuckle on Tue, 10 April 2012 21:08
		Re: out of sheer curiosity... By: M. Strobel on Wed, 11 April 2012 08:40
		Re: out of sheer curiosity... By: Jerry Stuckle on Tue, 10 April 2012 11:58
		Re: out of sheer curiosity... By: Tim Streater on Tue, 10 April 2012 15:04
		Re: out of sheer curiosity... By: Jerry Stuckle on Tue, 10 April 2012 16:10
		Re: out of sheer curiosity... By: Thomas Mlynarczyk on Tue, 10 April 2012 16:18
		Re: out of sheer curiosity... By: The Natural Philosoph on Tue, 10 April 2012 17:20
		Re: out of sheer curiosity... By: M. Strobel on Tue, 10 April 2012 17:31
		Re: out of sheer curiosity... By: Jerry Stuckle on Tue, 10 April 2012 21:20
		Re: out of sheer curiosity... By: Thomas Mlynarczyk on Tue, 10 April 2012 21:57
		Re: out of sheer curiosity... By: Jerry Stuckle on Tue, 10 April 2012 23:50
		Re: out of sheer curiosity... By: Tim Streater on Tue, 10 April 2012 16:41
		Re: out of sheer curiosity... By: Thomas Mlynarczyk on Tue, 10 April 2012 15:25
		Re: out of sheer curiosity... By: Jerry Stuckle on Tue, 10 April 2012 16:16
		Re: out of sheer curiosity... By: Thomas Mlynarczyk on Tue, 10 April 2012 11:44
		Re: out of sheer curiosity... By: Jerry Stuckle on Tue, 10 April 2012 12:04
		Re: out of sheer curiosity... By: Thomas Mlynarczyk on Tue, 10 April 2012 15:37
		Re: out of sheer curiosity... By: Jerry Stuckle on Tue, 10 April 2012 16:19
		Re: out of sheer curiosity... By: Thomas Mlynarczyk on Tue, 10 April 2012 16:44
		Re: out of sheer curiosity... By: Jerry Stuckle on Tue, 10 April 2012 21:23
		Re: out of sheer curiosity... By: Scott Johnson on Mon, 09 April 2012 18:50
		Re: out of sheer curiosity... By: Thomas Mlynarczyk on Mon, 09 April 2012 21:03
		Re: out of sheer curiosity... By: Scott Johnson on Mon, 09 April 2012 22:27
		Re: out of sheer curiosity... By: Jerry Stuckle on Tue, 10 April 2012 00:25
		Re: out of sheer curiosity... By: Thomas Mlynarczyk on Tue, 10 April 2012 10:48
		Re: out of sheer curiosity... By: Jerry Stuckle on Tue, 10 April 2012 12:06
		Re: out of sheer curiosity... By: Leonardo Azpurua on Tue, 10 April 2012 12:22
		Re: out of sheer curiosity... By: Jerry Stuckle on Tue, 10 April 2012 16:20
		Re: out of sheer curiosity... By: Leonardo Azpurua on Tue, 10 April 2012 16:33
		Re: out of sheer curiosity... By: Jerry Stuckle on Tue, 10 April 2012 21:28
		Re: out of sheer curiosity... By: Thomas Mlynarczyk on Tue, 10 April 2012 22:13
		Re: out of sheer curiosity... By: Jerry Stuckle on Tue, 10 April 2012 23:53
		Re: out of sheer curiosity... By: Thomas Mlynarczyk on Wed, 11 April 2012 20:17
		Re: out of sheer curiosity... By: Jerry Stuckle on Wed, 11 April 2012 20:30
		Re: out of sheer curiosity... By: Jerry Stuckle on Tue, 10 April 2012 00:22
		Re: out of sheer curiosity... By: Thomas Mlynarczyk on Tue, 10 April 2012 10:43
		Re: out of sheer curiosity... By: Jerry Stuckle on Tue, 10 April 2012 12:11
		Re: out of sheer curiosity... By: Thomas Mlynarczyk on Tue, 10 April 2012 16:15
		Re: out of sheer curiosity... By: M. Strobel on Tue, 10 April 2012 17:09
		Re: out of sheer curiosity... By: Thomas Mlynarczyk on Tue, 10 April 2012 18:17
		Re: out of sheer curiosity... By: M. Strobel on Tue, 10 April 2012 18:25
		Re: out of sheer curiosity... By: Thomas Mlynarczyk on Tue, 10 April 2012 21:21
		Re: out of sheer curiosity... By: Jerry Stuckle on Tue, 10 April 2012 21:34
		Re: out of sheer curiosity... By: Thomas Mlynarczyk on Tue, 10 April 2012 23:00
		Re: out of sheer curiosity... By: Jerry Stuckle on Tue, 10 April 2012 23:54
		Re: out of sheer curiosity... By: Thomas Mlynarczyk on Wed, 11 April 2012 20:10
		Re: out of sheer curiosity... By: Jerry Stuckle on Wed, 11 April 2012 20:31
		Re: out of sheer curiosity... By: Thomas Mlynarczyk on Wed, 11 April 2012 20:40
		Re: out of sheer curiosity... By: Jerry Stuckle on Thu, 12 April 2012 04:02
		Re: out of sheer curiosity... By: M. Strobel on Thu, 12 April 2012 10:00
		Re: out of sheer curiosity... By: Jerry Stuckle on Thu, 12 April 2012 11:45

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