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]

lwoods wrote:

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

$y='s';
fix your example, but I don't understand why you can't use 'echo $x[$s];' .

Darvin

[Janwillem Borleffs]

lwoods wrote:

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?

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]

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

Thanks.

Larry

"Janwillem Borleffs" <[e-mail]> wrote in message
news:43***********************@news.euronet.nl...

lwoods wrote:

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?

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