Accessing Key=> Value Array by Index

I hope this is a silly questions (been programming for 4 days
straight)...

Given an array:
$foo = array(one=>11,two=>22,tree=>33);

$fum = $foo[0];

$fum returns null. There are cases where I won't know the name "one"
and still need to access by Index.

HELP!!!

Bob Johnson wrote:

> I hope this is a silly questions (been programming for 4 days
> straight)...
>
> Given an array:
> $foo = array(one=>11,two=>22,tree=>33);
>
> $fum = $foo[0];
>
> $fum returns null. There are cases where I won't know the name "one"
> and still need to access by Index.

That's because there is no value in your array with index 0.

> HELP!!!

Refer to the array_keys() function to find out how to get all the index
names of an array: http://www.php.net/array_keys

--
Chris Hope | www.electrictoolbox.com | www.linuxcdmall.com

"Bob Johnson" <bob@acme.com> kirjoitti
viestissä:300520051442288433%bob@acme.com...
>
> I hope this is a silly questions (been programming for 4 days
> straight)...
>
> Given an array:
> $foo = array(one=>11,two=>22,tree=>33);
>
> $fum = $foo[0];
>
> $fum returns null. There are cases where I won't know the name "one"
> and still need to access by Index.
>


I use the foreach control structure:

foreach($foo as $key => $value) {
echo "$key contains $value<br>";
}

read all about it @ http://www.php.net/foreach


--
"I am pro death penalty. That way people learn
their lesson for the next time." -- Britney Spears

eternal.erectionN0@5P4Mgmail.com

Bob Johnson wrote:
> I hope this is a silly questions (been programming for 4 days
> straight)...
>
> Given an array:
> $foo = array(one=>11,two=>22,tree=>33);
>
> $fum = $foo[0];
>
> $fum returns null. There are cases where I won't know the name "one"
> and still need to access by Index.

You can try this:

$keys = array_keys($foo);
$fum = $foo[$keys[0]];

Berislav

In article <d7h5ou$977$1@garrison.globalnet.hr>, Berislav Lopac
<berislav.lopac@lopsica.com> wrote:

> Bob Johnson wrote:
> > I hope this is a silly questions (been programming for 4 days
> > straight)...
> >
> > Given an array:
> > $foo = array(one=>11,two=>22,tree=>33);
> >
> > $fum = $foo[0];
> >
> > $fum returns null. There are cases where I won't know the name "one"
> > and still need to access by Index.
>
> You can try this:
>
> $keys = array_keys($foo);
> $fum = $foo[$keys[0]];
>
> Berislav


Many thanks - that's perfect. I resorted to using current(), next(),
and prev(). This is much cleaner

Berislav - appreciate your post!