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create array from members of an array of objects

Hello,
I have the following situation:

$list[] is an array of MyElement objects.

MyElement has two members: MyElement->member1; MyElement->member2;

What I want is to get the following:

$newlist[] so that:

$newlist[0]=$list[0]->member2;
$newlist[1]=$list[1]->member2;
$newlist[2]=$list[2]->member2;
....

I need to do this using A SINGLE LINE OF CODE.
Is it possible? How to do this?

I tried with:

array_walk($lis t,create_functi on('$a,$b,$resu lt','$result[] =
$a->member2;'), &$result);

but I get the following error:

Warning: Call-time pass-by-reference has been deprecated - argument
passed by value; If you would like to pass it by reference, modify the
declaration of array_walk(). If you would like to enable call-time
pass-by-reference, you can set allow_call_time _pass_reference to true in
your INI file. However, future versions may not support this any longer.

Thank you
Regards
Feb 7 '07
10 1598
Rik wrote:
On Wed, 14 Feb 2007 02:12:32 +0100, Generale Cluster
<al**@carraroso ftmasters.netwr ote:
>Jerry Stuckle ha scritto:
>>Generale Cluster wrote:
Jerry Stuckle ha scritto:
Rik wrote:
>Generale Cluster <al**@carraroso ftmasters.netwr ote:
[CUT]
>> That's the difference. I prefer code which is easily understandable.
You had trouble getting it to work in the first place. What happens
when you have to look at it six months or a year from now when you
have to work on it again? You'll go through all of his again to
understand what it does.
[CUT]

comment, comment, comment and comment again :-)

Commenting in the single line?
Just tell them to leave everything between <?php ?alone and it should
be OK, no reason to forced single line statements. About that, if you're
worried about that, then why not just code it on the single line on
normal code? Linebreaks aren't actually required in PHP, so you could
just leave them in, and when the code needs to be updated you can whip
it into some kind of formatted readable shape quite fast with any
competent texteditor.

But the main reason for me posting here in this thread is about
commenting: I'd like to take the oppertunity advocate the user of the /x
modifier for regexes. These pesky little things are often forgotten in
the commenting, while it's so easy.

Compare (not a very useful regex, just an illustration):

$regex = '/(a|b){2,4}([^\s]+?)c{2,4}(.*?)q/si'

And
$regex = '/{a|b}{2,4} #start matching at 2 to 4 a's or b's in a row
([^\s]+?) #capture all non whitespace untill the next match
c{2,4} #match 2 to 4 c's
(.*?) #capture any character
q #until q
/six'; //case-insensite, with comments

Now, that will be a lot easier altered and understood by coworkers I'd
imagine..
--Rik Wasmus
Rik,

I agree - this makes a lot more sense, especially to those of us who are
regex-challenged. :-) I really do wish more people would comment their
regex's. It sometimes takes me a while to decode just what they're
trying to do.

--
=============== ===
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
js*******@attgl obal.net
=============== ===
Feb 14 '07 #11

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