#28404 [NEW]: float array keys equal to zero for isset() and empty()

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