Re: RecursiveArrayIterator

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On Monday 23 July 2007, Kevin Waterson wrote:
> This one time, at band camp, Jim Lucas <lists@xxxxxxxxx> wrote:
> > I don't get it, why not do this?
> >
> > foreach ( $array AS $row ) {
> > 	foreach ( $row AS $k => $v ) {
> > 		if ( ! is_array($v) ) {
> > 			echo "{$k} -- {$v}<br/>\n";
> > 		}
> > 	}
> > }
> >
> >
> > Maybe I am missing the point...  ???
>
> Indeed, whilst your method is simplistic it leaves many copies of the array
> dangling in memory. Every time you call foreach it creates a copy of the
> array internally. SPL iterators do things differently and know only one
> element at a time. More can be seen at
> http://phpro.org/tutorials/Introduction-to-SPL.html
>
> so the final solution was using a foreach, however, using a foreach on an
> SPL iterator object implicitly calls the inner iterator giving us all the
> SPL goodness in memory savings.

Isn't that what garbage collection is for?

-- 
Larry Garfield			AIM: LOLG42
larry@xxxxxxxxxxxxxxxx		ICQ: 6817012

"If nature has made any one thing less susceptible than all others of 
exclusive property, it is the action of the thinking power called an idea, 
which an individual may exclusively possess as long as he keeps it to 
himself; but the moment it is divulged, it forces itself into the possession 
of every one, and the receiver cannot dispossess himself of it."  -- Thomas 
Jefferson

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