Have you considered simply using require_once?

Also, you can find out if a class was defined by calling
'class_exists()'. In this way you might save something.

The best way thought is what Miguel was saying: load the files
conditionally with a logic.


Maxim Maletsky
Founder, Chief Developer

PHPBeginner.com (Where PHP Begins)

> -----Original Message-----
> From: Tamás Árpád [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, April 03, 2002 9:51 PM
> To: Miguel Cruz; Maxim Maletsky
> Subject: Re: [PHP] Re: some kind of "library loader"
> > On Thu, 4 Apr 2002, Maxim Maletsky wrote:
> > > You can try to load all those classes as texts into a db and then
> execute
> > > the needed ones as eval()ed strings. It could be easy for you to
> the
> > > logic because the PHP code are stings and are never included but
> > > Not sure if this could be wise to do, just throwing out an idea.
> >
> > Offhand I'm guessing the payoff wouldn't be great, because you'd
lose the
> > benefit of PHP's own code caching. Depends on how much of this
> > code actually gets used on any one run, I suppose. But why not do
the same
> > thing with conditional includes, and then at least let PHP cache it?
> Thanks for your suggestion Maxim and Miguel.
> Unfortunately storing code in db wouldn't solve my problem, becuse
then I
> still had to recognise when the classes are really needed. Now in the
> lines of code we just have
> $x = new SomeClass();
> $y = new OtherClass(); or
> $result = AnotherClass::staticMethod(); statements, and we have many
> them.
> That's why I'm searching for a sollution that we can use without
rewrite all
> these calls with the extension of a test if the needed class's
> was or wasn't loaded before.
> So I'd like to use conditional includes, and my first thought was that
> somehow I can make it with a custom error handler, but unfortunately I
> realized quickly it's not that simple.
> Maybe you or someone can help, If I explain my problem in a little
> detail.
> We have a "portal-creator" system (like many of you, I guess), with an
> developed template system. Of course we sell it to customers who have
> own needs. They create the designs, or tell us how the site should
look, and
> the created templates determine what template classes are needed for
> generating the pages. The template classes require other "base"
classes that
> are responsible for handling the db storage.
> We have about 430 classes (I misscalculated it in my firts mail), and
> have many "cross reference" to each other. So it's hard to know
> if a class definition is needed, except of course at every new
operator, and
> static method call, but there are plenty of them.
> Parsing of (almost) all of the php code takes about 1,5secs on an
athlon 800
> cpu, which is far from reasonable. I expect that with conditional
> at least half of the code wouldn't get parsed on a normal site, and
> less on a smaller site.
> I wrote that I tried many code caches (I sent the results in deatils
> December), but none of them - except Zend Cache - made significant
> (PHP-Accelerator also gave good results for speed, but I got many
> Unfortunatelly Zend Cache isn't affordable for many of our client,
> especially the smaller ones, who don't need many of the features of
> system, so they would benefit much from the conditional includes.
> I hope someone who had the same situation can help, or at least I get
> reinforcement, that I can't by-pass the hard way (to write an if
> before every use of a class wether it was loaded or not).
> Thanks for your help,
>     Arpi
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