From:             info at silisoftware dot com
Operating system: WinXP
PHP version:      5.0.0RC2
PHP Bug Type:     Arrays related
Bug description:  float array keys equal to zero for isset() and empty()

Description:
------------
When testing arrays for a key's existance with isset() or empty(), a float
key is treated as zero in PHP v5. This behavior differs from PHP v4.3.6.

Reproduce code:
---------------
$MyArray[0] = 'zero';
$key = (float) 5;
$isset = isset($MyArray[$key]);
var_dump($isset);

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

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

-- 
Edit bug report at http://bugs.php.net/?id=28404&edit=1
-- 
Try a CVS snapshot (php4):  http://bugs.php.net/fix.php?id=28404&r=trysnapshot4
Try a CVS snapshot (php5):  http://bugs.php.net/fix.php?id=28404&r=trysnapshot5
Fixed in CVS:               http://bugs.php.net/fix.php?id=28404&r=fixedcvs
Fixed in release:           http://bugs.php.net/fix.php?id=28404&r=alreadyfixed
Need backtrace:             http://bugs.php.net/fix.php?id=28404&r=needtrace
Need Reproduce Script:      http://bugs.php.net/fix.php?id=28404&r=needscript
Try newer version:          http://bugs.php.net/fix.php?id=28404&r=oldversion
Not developer issue:        http://bugs.php.net/fix.php?id=28404&r=support
Expected behavior:          http://bugs.php.net/fix.php?id=28404&r=notwrong
Not enough info:            http://bugs.php.net/fix.php?id=28404&r=notenoughinfo
Submitted twice:            http://bugs.php.net/fix.php?id=28404&r=submittedtwice
register_globals:           http://bugs.php.net/fix.php?id=28404&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=28404&r=php3
Daylight Savings:           http://bugs.php.net/fix.php?id=28404&r=dst
IIS Stability:              http://bugs.php.net/fix.php?id=28404&r=isapi
Install GNU Sed:            http://bugs.php.net/fix.php?id=28404&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=28404&r=float

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