[imp] Cannot download large folder

[Chuck Hagenbuch]

Quoting Andrew Morgan <morgan at orst.edu>:

>>> A more useful question might be, "Why does it require so much memory
>>> to download a folder and how can the memory footprint be reduced?"
>>> Note - I can trigger this error on my system also with a mailbox
>>> that is approximately 1/3 my php memory limit.
>>
>> If someone wants to trace this a bit, that'd be great.
>
> Can you give me some directions on how to get started tracing memory  
> usage?  I've never traced a PHP application.  :)

http://us.php.net/memory-get-usage

If that's not enough, xdebug is the next step (http://xdebug.org/).

-chuck