Re: Return Values Copied? Copied if By Reference?

On Thu, July 27, 2006 1:05 pm, Adam Zey wrote: > Then how come when I do a foreach on an array (without modifying > anything within the foreach), it still makes a copy of the array that > consumes memory? I think it's dangerous to generalize that it's always > best to let PHP make copies of things. In the foreach situation, the > preferred solution when memory is a problem is to either use a > reference, or have foreach iterate over the keys of the array. I think this is because you can sometimes use & to modify the contents of the iteratee (is that a word?) so PHP does a copy there blindly, whether you have & or not, because you might have & there sometimes. I think Dmitry or Antony or ??? is looking at changing that so the copy is only done when & is present. At least, that's how I understand (or not) the upshot of a thread on Internals. It's entirely possible, even likely, that I'm completely misunderstanding both of these threads. :-) -- Like Music? http://l-i-e.com/artists.htm