$playerdata = unpack('czero/A'.$length.'one/itwo/fthree/A*four', $rest);
Good Luck!
--Zak
----- Original Message -----
From: "Craig Vincent" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Sunday, May 20, 2001 4:00 AM
Subject: [PHP] Problem using unpack
> I'm current trying to use PHP's unpack feature to decode a binary string
and
> am running into a problem.
>
> Here is the unpack command I am using
>
> $playerdata = unpack("czero/A$lengthone/itwo/fthree/A*four", $rest);
>
> basically it is setup so that the hash created has 5 key/value pairs named
> zero, one, two, three and four. However my problem is with the second
> key/value pair. Since the information I need for the second field is
> dynamic I need to be able to set a variable there to tell PHP exactly how
> many characters are to be parsed for that field. So say $length = 5 right
> now the command would be translated by PHP as
>
> $playerdata = unpack("czero/A5one/itwo/fthree/A*four", $rest);
>
> At least that's what I need =) The problem I'm experiencing right now is
> that PHP translates the variable as $lengthone instead of just $length
which
> of course always results in 0 and then causes the data to be parsed
> incorrectly. I cannot use whitespace to separate $length and one as then
> the unpack feature breaks down thinking that whitespace should be in the
> string I'm unpacking which messes things up as well.
>
> Any suggestions/tips for handling this problem would be much appreciated
=)
> I've been plagued with this problem for a few days now and I'm having no
> luck =/
>
> Sincerely,
>
> Craig Vincent
>
>
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