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Bug #37598 prev() fonction crash the array pointer
Submitted: 2006-05-26 01:58 UTC Modified: 2006-05-26 02:42 UTC
From: jerebenz at gmail dot com Assigned:
Status: Not a bug Package: Scripting Engine problem
PHP Version: 4.4.2 OS: Unix
Private report: No CVE-ID: None
View Developer Edit
 [2006-05-26 01:58 UTC] jerebenz at gmail dot com 
Description:
------------
Hi,

The problem occur the pointer of an array is at the start and I do a prev().

If I try to do current() after that, I see nothing, and if I try next() and current() again, still nothing.

Bye

Reproduce code:
---------------
<?php

$tab = array('4', '6');

echo current($tab);

prev($tab);
echo current($tab);

next($tab);
echo current($tab);

?>

Expected result:
----------------
446

Actual result:
--------------
4

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 [2006-05-26 02:08 UTC] jerebenz at gmail dot com 
Hi,

The problem occur when the pointer of an array is at the start and I do a
prev().

If I try to do current() after that, I see nothing, and if I try next()
and current() again, still nothing.

Bye
 [2006-05-26 02:42 UTC] pajoye@php.net 
Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at
http://www.php.net/manual/ and the instructions on how to report
a bug at http://bugs.php.net/how-to-report.php

You should check the return value of prev and next. The state is undefined as out of range. Reset the array after having reached the end or beginning.
 
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