Newsgroups: php.internals
Path: news.php.net
Xref: news.php.net php.internals:42388
Mailing-List: contact internals-help@lists.php.net; run by ezmlm
Received-SPF: error (pb1.pair.com: domain phpro.org from 80.76.201.53 cause and error)
Date: Sun, 28 Dec 2008 11:08:08 +1100
To: internals@lists.php.net
Message-ID: <20081228110808.107e0f0d.kevin@phpro.org>
In-Reply-To: <495645A5.4080802@dealnews.com>
References: <5faa7b820812260106p6f24bf0ct49ef574e5ed4e2c2@mail.gmail.com>
	<20081227005523.2961ecd4.kevin@phpro.org>
	<5faa7b820812261004j599e1aafo6fab154063c34cca@mail.gmail.com>
	<20081227191015.560d4a0d.kevin@phpro.org>
	<495645A5.4080802@dealnews.com>
Organization: PHPRO
Mime-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
Subject: Re: [PHP-DEV] Proposal: array_flatten function
From: kevin@phpro.org (Kevin Waterson)

This one time, at band camp, Brian Moon <brianm@dealnews.com> wrote:

> I would agree except that doing lots of work on arrays in user space 
> consumes a lot of memory because of the number of opcodes used when 
> working on removing/adding things to the array.

This is exactly the scenario for which SPL Iterators were created

> We created an extension for Phorum to do our array tree sorting for 
> those users that had large threads of messages (1000+).  We found that 
> PHP would quickly consume a memory limit of 128MB and use tons of CPU 
> when working in user space to simply reorder an array.
Were you using SPL Iterators?

Kevin