Need education: Question about indirect referencing

[lwoods]

Example:

$x=array('a'=>' ant','b'=>'boat ');
$s='a';
$y='$s';
echo $x[$$y];

I want to echo the value of key 'a' by indirectly referencing it via the
variable $y. The above is NOT correct, I know.

How do I indirectly reference a variable in PHP?

TIA,

Larry Woods

[Darvin]

Re: Need education: Question about indirect referencing

lwoods wrote:[color=blue]
> Example:
>
> $x=array('a'=>' ant','b'=>'boat ');
> $s='a';
> $y='$s';
> echo $x[$$y];
>
> I want to echo the value of key 'a' by indirectly referencing it via the
> variable $y. The above is NOT correct, I know.
>
> How do I indirectly reference a variable in PHP?
>
> TIA,
>
> Larry Woods
>
>[/color]
$y='s';
fix your example, but I don't understand why you can't use 'echo $x[$s];' .

Darvin

[Janwillem Borleffs]

Re: Need education: Question about indirect referencing

lwoods wrote:[color=blue]
> I want to echo the value of key 'a' by indirectly referencing it via
> the variable $y. The above is NOT correct, I know.
>
> How do I indirectly reference a variable in PHP?
>[/color]

The technique is called 'Variable variables' and looks like this:

$x=array('a'=>' ant','b'=>'boat ');
$s='a';
$y='s'; // Removed the dollar sign
echo $x[$$y];


JW

[lwoods]

Re: Need education: Question about indirect referencing

That's the structure that I'm looking for.

Thanks.

Larry

"Janwillem Borleffs" <jw@jwscripts.c om> wrote in message
news:43ca4a97$0 $79824$dbd45001 @news.euronet.n l...[color=blue]
> lwoods wrote:[color=green]
>> I want to echo the value of key 'a' by indirectly referencing it via
>> the variable $y. The above is NOT correct, I know.
>>
>> How do I indirectly reference a variable in PHP?
>>[/color]
>
> The technique is called 'Variable variables' and looks like this:
>
> $x=array('a'=>' ant','b'=>'boat ');
> $s='a';
> $y='s'; // Removed the dollar sign
> echo $x[$$y];
>
>
> JW
>
>[/color]