On Fri, Nov 7, 2008 at 5:42 PM, Matthew Weier O'Phinney
<[EMAIL PROTECTED]> wrote:
> -- till <[EMAIL PROTECTED]> wrote
> (on Friday, 07 November 2008, 03:40 PM +0100):
>> On Fri, Nov 7, 2008 at 1:09 PM, Matthew Weier O'Phinney
>> <[EMAIL PROTECTED]> wrote:
>> > -- Michael Depetrillo <[EMAIL PROTECTED]> wrote
>> > (on Thursday, 06 November 2008, 09:33 PM -0800):
>> >> Does using autoload improve or reduce performance?
>> >>
>> >> I thought I saw an email by you where you stated in did.
>> >
>> > It improves performance, particularly when you strip out the
>> > require_once calls within Zend Framework (which you can do with a simple
>> > one-liner using find and sed).
>>
>> Just to add to this.
>>
>> Yes, and also no. Zend_Loader by itself is faster than all the
>> require_once in the framework. However, it can be simplified still to
>> e.g. using include vs. include_once since autoload is only invoked
>> when the class is not found thus making include_once redundant.
>
> The main reason Zend_Loader uses include_once over include is to ensure
> that if there are any arbitrary require_once or include_once calls
> elsewhere in the codebase, they won't lead to a conflict. While you may
> have stripped them from your Zend Framework install, we cannot assume
> you've done the same in your userland code.
True, and true.
Did you ever consider benchmarking it against:
if (!class_exists($foo)) {
include $foo;
}
I haven't, so I am asking. I was thinking if a lookup in userland can
actually outperform all the PHP-goodness. ;-)
Also, the thing is, if you recommend that people use Zend_Loader in
__autoload(), then using include instead of include_once is somewhat a
given since __autoload would never invoke the loader if the class
hasn't been loaded already. Right?
I know that inside the framework code, there are a ton of instances
where Zend_Loader::loadClass() is used to load adapters/drivers etc..
I wish there was a way to register a default loader for the entire
framework, so I could use mine everywhere. No idea if that is so hard
to implement.
Have a great weekend,
Till
