ID: 8945
User Update by: [EMAIL PROTECTED]
Old-Status: Feedback
Status: Open
Bug Type: Performance problem
Description: include, require, et al.

Never mind, I think that PHP can't handle parsing too many include files (Files too 
large/complex, more than 8 include files, not enough memory/CPU to handle PHP, 
whatever etc.)

Previous Comments:

[2001-03-20 03:24:43] [EMAIL PROTECTED]
I don't see your point.

Using require in a conditional block make absolutely NO SENSE, as it gets executed 
wheter or not the condition of the block holds true or not.

Of course the performance "decreases" when you load more files into your application: 
they need to be scanned, parsed and probably executed.


[2001-03-16 17:29:33] [EMAIL PROTECTED]
I tried both include() and require():

    require "some_file.php";


    include "some_file.php";

Both performed poorly, which is why I'm submitting this report.
At the moment, I've changed my code to use only require() without conditions, as 
require() is much faster than include().

Including one more file decreases performance by 2x.
Including another file decreases performance by another 2x.
eg: If you have 8 included files, the performance would be decreased by 256x. This is 
the performance drop that I'm pointing out here.


[2001-03-16 17:00:07] [EMAIL PROTECTED]
No feedback.



[2001-02-17 13:09:27] [EMAIL PROTECTED]
You say that you use conditional statements to determine whether or not to REQUIRE a 

Just to make sure: You're not using require or require_once inside a conditional 
block, such as:

    require "some_file.php";

I'm asking this, because require and require_once are UNCONDITIONALY called, see the 
manual pages for require and include on this topic.


[2001-01-26 18:58:49] [EMAIL PROTECTED]
I discovered that the include(), require() or include_only(), require_only() functions 
have a profound effect on performance. I use conditional statements to conditionally 
require files, however, it seems that the PHP interpreter has a performance problem 
with this.
Commenting out all the require() or include() code shows that performance improved by 
Web Stressing the app and PHP, I have found that PHP can sometimes crash with an 
Access Violation at 12345 and CPU usage maxing at 100%.
Memory leaks very much when CPU usage is at maximum threshold.
Zend Optimizer seems to reduce performance by a noticeable amount. It does not seem to 
reduce CPU usage, unfortunately.
I got the best performance from PHP using page cacheing. Results seem to show that 
it's faster than static HTML...


The remainder of the comments for this report are too long.  To view the rest of the 
comments, please view the bug report online.

Full Bug description available at:

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