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Bug #34648 isset false positive on key to string
Submitted: 2005-09-26 19:25 UTC Modified: 2005-09-26 21:47 UTC
From: ira at cmiware dot com Assigned:
Status: Closed Package: Arrays related
PHP Version: 5.1.0RC1 OS: slackware
Private report: No CVE-ID: None
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From: ira at cmiware dot com
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 [2005-09-26 19:25 UTC] ira at cmiware dot com 
Description:
------------
isset() returns a false positive when testing if an array key is valid, as in:

Reproduce code:
---------------
$myarray['parts'][1] = 'test';
var_dump(isset($myarray['parts'][1]['test']));
var_dump(isset($myarray['parts'][1]['test4']));
var_dump(isset($myarray['parts'][1][0]));
var_dump(isset($myarray['parts'][1][1]));
var_dump(isset($myarray['parts'][1][2]));
var_dump(isset($myarray['parts'][1][3]));
var_dump(isset($myarray['parts'][1][4]));

Expected result:
----------------
bool(true) 
bool(false) 
bool(false) 
bool(false) 
bool(false) 
bool(false) 
bool(false)

Actual result:
--------------
bool(true) 
bool(true) 
bool(true) 
bool(true) 
bool(true) 
bool(true) 
bool(false)

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 [2005-09-26 19:27 UTC] ira at cmiware dot com 
reproduce code should be:

$myarray['parts']['test'] = 1;
var_dump(isset($myarray['parts']['test']));
var_dump(isset($myarray['parts']['test4']));
var_dump(isset($myarray['parts'][0]));
var_dump(isset($myarray['parts'][1]));
var_dump(isset($myarray['parts'][2]));
var_dump(isset($myarray['parts'][3]));
var_dump(isset($myarray['parts'][4]));
 [2005-09-26 19:52 UTC] marcot@php.net 
Please try using this CVS snapshot:

  http://snaps.php.net/php5-latest.tar.gz
 
For Windows:
 
  http://snaps.php.net/win32/php5-win32-latest.zip

Works for me with the latest CVS version.
 [2005-09-26 21:47 UTC] ira at cmiware dot com 
The bug has been corrected in the latest CVS snapshot.
 
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