#34648 [Opn->Fbk]: isset false positive on key to string

From: Date: Mon, 26 Sep 2005 17:52:22 +0000
Subject: #34648 [Opn->Fbk]: isset false positive on key to string
References: 1  Groups: php.bugs 
Request: Send a blank email to php-bugs+get-85615@lists.php.net to get a copy of this message 
 ID:               34648
 Updated by:       marcot@php.net
 Reported By:      ira at cmiware dot com
-Status:           Open
+Status:           Feedback
 Bug Type:         Arrays related
 Operating System: slackware
 PHP Version:      5.1.0RC1
 New Comment:

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.


Previous Comments:
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[2005-09-26 19:27:34] 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 19:25:01] 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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