Dereferencing Variables in PHP

I have a set of variables called $topten_1, $topten_2, $topten_3, etc.

I'd like to use a for($i = 1 ; $i<=10 ; $i++) loop to reference them,
but can't quite figure out how to. These don't work:

$topten_$1
${topten_$1}
$"topten_$1"

Is there someway to do this in PHP, or is the only answer to use an
associative array?

Shannon

Shannon A. wrote:
> I have a set of variables called $topten_1, $topten_2, $topten_3, etc.
>
> I'd like to use a for($i = 1 ; $i<=10 ; $i++) loop to reference them,
> but can't quite figure out how to. These don't work:
>
> $topten_$1
> ${topten_$1}
> $"topten_$1"
>
> Is there someway to do this in PHP, or is the only answer to use an
> associative array?
>
> Shannon
>

Shannon,

Something like this should work...

$var = 'topten_' . $i;
echo $$var;

But I'd use an array. Much cleaner code and easier to do. Since you're
using integer indicies anyway, it doesn't have to be associative.


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Jerry Stuckle
JDS Computer Training Corp.
jstucklex@attglobal.net
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"Shannon A." <appel@erzo.org> wrote in message
news:1116096102.753079.138950@g44g2000cwa.googlegr oups.com...
> I have a set of variables called $topten_1, $topten_2, $topten_3, etc.
>
> I'd like to use a for($i = 1 ; $i<=10 ; $i++) loop to reference them,
> but can't quite figure out how to. These don't work:
>
> $topten_$1
> ${topten_$1}
> $"topten_$1"
>
> Is there someway to do this in PHP, or is the only answer to use an
> associative array?
>
> Shannon
>

Close... try:

${"topten_$i"}



Norm
---
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Shannon A. wrote:
> I have a set of variables called $topten_1, $topten_2, $topten_3,
etc.
>
> I'd like to use a for($i = 1 ; $i<=10 ; $i++) loop to reference them,
> but can't quite figure out how to. These don't work:
>
> $topten_$1
> ${topten_$1}
> $"topten_$1"

Don't use this approach, it's just a complete pain. Use an array, it's
far easier and there's dozens of PHP functions there to help you do
this.

> Is there someway to do this in PHP, or is the only answer to use an
> associative array?

You don't even have to use an associative array, numeric indices will
do the trick, e.g.

$topten[1]
$topten[2]
etc...

--
Oli