From: dan at yes dot lt
Operating system: WinXP
PHP version: 5.2.3
PHP Bug Type: SPL related
Bug description: ArrayAccess::offsetExists works wrong with isset()
Description:
------------
method ArrayAccess actualy works wrong with isset()/empty()...
isset()/empty() now calls only ArrayAccess::offsetExist, but should call
both ArrayAccess::offsetExist and ArrayAccess::offsetGet to check if value
is realy set.
that's how arrays do...
Reproduce code:
---------------
class Test implements ArrayAccess
{
protected $_array = array();
protected $_count = 0;
function offsetExists($offset)
{
return $offset >= 0 && $offset < $this->_count;
}
function offsetGet($offset)
{
return $this->_array[$offset];
}
function offsetSet($offset, $value)
{
$this->_array[] = $value;
$this->_count++;
}
function offsetUnset($offset)
{
unset($this->_array[$offset]);
}
}
$a = new Test;
$a[] = 'A'; // 0
$a[] = 10; // 1
$a[] = null; // 2
echo isset($a[0]) ? 'set' : 'unset', "\n";
echo isset($a[1]) ? 'set' : 'unset', "\n";
echo isset($a[2]) ? 'set' : 'unset', "\n";
Expected result:
----------------
set
set
unset
Actual result:
--------------
set
set
set
--
Edit bug report at http://bugs.php.net/?id=41727&edit=1
--
Try a CVS snapshot (PHP 4.4):
http://bugs.php.net/fix.php?id=41727&r=trysnapshot44
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=41727&r=trysnapshot52
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=41727&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=41727&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=41727&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=41727&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=41727&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=41727&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=41727&r=support
Expected behavior: http://bugs.php.net/fix.php?id=41727&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=41727&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=41727&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=41727&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=41727&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=41727&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=41727&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=41727&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=41727&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=41727&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=41727&r=mysqlcfg
