Re: [PHP] I beleive I have found a bug.....
From: Brian White <[EMAIL PROTECTED]>
Date: Wed, Aug 29, 2001 at 06:16:49PM +1000
Message-ID: <[EMAIL PROTECTED]>
Subject: Re: [PHP] I beleive I have found a bug.
> You didn't read my code closely enough:
>
> I said:
> > > If I replace the problem line
> > > foreach ( array_keys($data) as $key2 )
> > >^^
> > > with the alternate
> > > foreach ( $data as $key2=>$val2 )
Oops... Sorry! That's what I said... I didn't take a very good look.
But now I have... You need to reset the $data-array before the inner
foreach-loop. Then there's no problem.
--- PHP code ---
\n";
foreach ( $data as $key1=>$val1 )
{
reset ($data); // <- R E S E T !!!
foreach ( array_keys($data) as $key2 )
{
if ( $key1 == $key2 )
print "$key2";
else
print $key2;
print " ";
}
print "\n";
}
print "";
?>
--- End of PHP code ---
--
* R&zE:
--
-- Renze Munnik
-- DataLink BV
--
-- E: [EMAIL PROTECTED]
-- W: +31 23 5326162
-- F: +31 23 5322144
-- M: +31 6 21811143
--
-- Stationsplein 82
-- 2011 LM HAARLEM
-- Netherlands
--
-- http://www.datalink.nl
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Re: [PHP] I beleive I have found a bug.....
Renze Munnik said:
>I don't _think_ this is a bug (note: think). I haven't taken a very
>good look at your code, but as I understand you believe that:
>
> foreach ($data as $key)
>
>delivers the same $key as in:
>
> foreach ($data as $key=>$value)
You didn't read my code closely enough:
I said:
> > If I replace the problem line
> > foreach ( array_keys($data) as $key2 )
> >^^
> > with the alternate
> > foreach ( $data as $key2=>$val2 )
At 09:54 29/08/2001 +0200, * R&zE: wrote:
>
>From: Brian White <[EMAIL PROTECTED]>
>Date: Wed, Aug 29, 2001 at 04:01:06PM +1000
>Message-ID: <[EMAIL PROTECTED]>
>Subject: [PHP] I beleive I have found a bug.
>
> > ... I just thought I would see if anyone else can reproduce it!
> >
> > Ok. The problem is in the following snippet of code. ( Note : this exmaple
> > is extremely contrived, and is the essence of a much more complicated
> > situation involving a function call from a class method... )
> >
> > > $data = array( "A" => "AA" , "B" => "BB", "C"=> "CC", "D"=> "DD", "E"
> > => "EE" );
> >
> > print "\n";
> > foreach ( $data as $key1=>$val1 )
> > {
> > //foreach ( $data as $key2=>$val2 )
> > foreach ( array_keys($data) as $key2 ) // <= PROBLEM IS HERE
> > {
> > if ( $key1 == $key2 )
> > print "$key2";
> > else
> > print $key2;
> >
> > print " ";
> > }
> > print "\n";
> > }
> >
> > print "";
> > ?>
> >
> > I beleive it should generate
> >
> > A B C D E
> > A B C D E
> > A B C D E
> > A B C D E
> > A B C D E
> >
> >
> > Instead it generates
> >
> > A B C D E
> >
> >
> > If I replace the problem line
> > foreach ( array_keys($data) as $key2 )
> >
> > with the alternate
> > foreach ( $data as $key2=>$val2 )
> >
> > then it works fine.
> >
> > I am using PHP 4.0.4pl1.
> >
> >
> > Regs
> >
> > Brian White
> >
> > -
> > Brian White
> > Step Two Designs Pty Ltd - SGML, XML & HTML Consultancy
> > Phone: +612-93197901
> > Web: http://www.steptwo.com.au/
> > Email: [EMAIL PROTECTED]
> >
> >
> > --
> > PHP General Mailing List (http://www.php.net/)
> > To unsubscribe, e-mail: [EMAIL PROTECTED]
> > For additional commands, e-mail: [EMAIL PROTECTED]
> > To contact the list administrators, e-mail: [EMAIL PROTECTED]
>
>
>
>
>
>Hai Brain,
>
>I don't _think_ this is a bug (note: think). I haven't taken a very
>good look at your code, but as I understand you believe that:
>
> foreach ($data as $key)
>
>delivers the same $key as in:
>
> foreach ($data as $key=>$value)
>
>Well... it doesn't. Check the manual on it. If you use the
>foreach ($x as $y) construction, $y is the value... not the key.
>Take a look at:
>
>http://www.php.net/manual/en/control-structures.foreach.php
>
>
>foreach(array_expression as $value)
>foreach(array_expression as $key => $value)
>
>
>I think this solves your problem...
>
>
>
>--
>
>* R&zE:
>
>
>--
>-- Renze Munnik
>-- DataLink BV
>--
>-- E: [EMAIL PROTECTED]
>-- W: +31 23 5326162
>-- F: +31 23 5322144
>-- M: +31 6 21811143
>--
>-- Stationsplein 82
>-- 2011 LM HAARLEM
>-- Netherlands
>--
>-- http://www.datalink.nl
>--
>
>--
>PHP General Mailing List (http://www.php.net/)
>To unsubscribe, e-mail: [EMAIL PROTECTED]
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>To contact the list administrators, e-mail: [EMAIL PROTECTED]
-
Brian White
Step Two Designs Pty Ltd - SGML, XML & HTML Consultancy
Phone: +612-93197901
Web: http://www.steptwo.com.au/
Email: [EMAIL PROTECTED]
--
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To unsubscribe, e-mail: [EMAIL PROTECTED]
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To contact the list administrators, e-mail: [EMAIL PROTECTED]
Re: [PHP] I beleive I have found a bug.....
From: Brian White <[EMAIL PROTECTED]>
Date: Wed, Aug 29, 2001 at 04:01:06PM +1000
Message-ID: <[EMAIL PROTECTED]>
Subject: [PHP] I beleive I have found a bug.
> ... I just thought I would see if anyone else can reproduce it!
>
> Ok. The problem is in the following snippet of code. ( Note : this exmaple
> is extremely contrived, and is the essence of a much more complicated
> situation involving a function call from a class method... )
>
> $data = array( "A" => "AA" , "B" => "BB", "C"=> "CC", "D"=> "DD", "E"
> => "EE" );
>
> print "\n";
> foreach ( $data as $key1=>$val1 )
> {
> //foreach ( $data as $key2=>$val2 )
> foreach ( array_keys($data) as $key2 ) // <= PROBLEM IS HERE
> {
> if ( $key1 == $key2 )
> print "$key2";
> else
> print $key2;
>
> print " ";
> }
> print "\n";
> }
>
> print "";
> ?>
>
> I beleive it should generate
>
> A B C D E
> A B C D E
> A B C D E
> A B C D E
> A B C D E
>
>
> Instead it generates
>
> A B C D E
>
>
> If I replace the problem line
> foreach ( array_keys($data) as $key2 )
>
> with the alternate
> foreach ( $data as $key2=>$val2 )
>
> then it works fine.
>
> I am using PHP 4.0.4pl1.
>
>
> Regs
>
> Brian White
>
> -
> Brian White
> Step Two Designs Pty Ltd - SGML, XML & HTML Consultancy
> Phone: +612-93197901
> Web: http://www.steptwo.com.au/
> Email: [EMAIL PROTECTED]
>
>
> --
> PHP General Mailing List (http://www.php.net/)
> To unsubscribe, e-mail: [EMAIL PROTECTED]
> For additional commands, e-mail: [EMAIL PROTECTED]
> To contact the list administrators, e-mail: [EMAIL PROTECTED]
Hai Brain,
I don't _think_ this is a bug (note: think). I haven't taken a very
good look at your code, but as I understand you believe that:
foreach ($data as $key)
delivers the same $key as in:
foreach ($data as $key=>$value)
Well... it doesn't. Check the manual on it. If you use the
foreach ($x as $y) construction, $y is the value... not the key.
Take a look at:
http://www.php.net/manual/en/control-structures.foreach.php
foreach(array_expression as $value)
foreach(array_expression as $key => $value)
I think this solves your problem...
--
* R&zE:
--
-- Renze Munnik
-- DataLink BV
--
-- E: [EMAIL PROTECTED]
-- W: +31 23 5326162
-- F: +31 23 5322144
-- M: +31 6 21811143
--
-- Stationsplein 82
-- 2011 LM HAARLEM
-- Netherlands
--
-- http://www.datalink.nl
--
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
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