Re: foreach weirdness

[Al <news@xxxxxxxxxxxxx>]

On 3/23/2012 10:11 PM, Robert Cummings wrote:
> On 12-03-23 06:30 PM, Simon Schick wrote:
> > 2012/3/23 Robert Cummings<robert@xxxxxxxxxxxxx>
> > > On 12-03-23 11:16 AM, Arno Kuhl wrote:
> > > > it still does not produce the correct result:
> > > > 0 1 3 6 10 15 21
> > > > 0 1 3 6 10 15 15
> > >
> > >
> > > This looks like a bug... the last row should be the same. What version of
> > > PHP are you using? Have you checked the online bug reports?
> >
> > Hi, Robert
> >
> > Does not seem like a bug to me ...
> > http://schlueters.de/blog/archives/141-References-and-foreach.html
> >
> > What you should do to get the expected result:
> > Unset the variable after you don't need this reference any longer.
>
> Ah yes... that clued me in. I disagree with the article's generalization with
> respect to references since references accomplish some things that cannot be
> accomplished otherwise, but even I missed the fact that the second loop was
> using a variable that was a reference to the last element of the array as
> created in the first loop *lol*. The user's very act of checking their results
> was confounding the result... I love it :)
>
> Cheers,
> Rob.

Re, your "...that cannot be accomplished otherwise,..." Can you provide some 
examples?  The only ones I've found are when using create_function() and the 
arguments for callback functions. I can't even remember or find in my code an 
example of my foreach()loops needed it. Seems, I recall earlier versions of PHP 
[<4? ]required references for variables.

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