#48364 [NEW]: unexpected isset return

From: clement dot hallet at af83 dot com Operating system: Mac OS X 10.5.6 PHP version: 5.2.9 PHP Bug Type: Variables related Bug description: unexpected isset return Description: ------------ Hi, A call to the 'isset' function with a variable set to NULL returns FALSE. As seen on a previous report bug (http://bugs.php.net/bug.php?id=6076), the return value should be TRUE. Reproduce code: --------------- $a = NULL; var_dump(isset($a)); Expected result: ---------------- the return of isset($a) should be TRUE. Actual result: -------------- isset($a) returns FALSE -- Edit bug report at http://bugs.php.net/?id=48364&edit=1 -- Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=48364&r=trysnapshot52 Try a CVS snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=48364&r=trysnapshot53 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=48364&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=48364&r=fixedcvs Fixed in CVS and need be documented: http://bugs.php.net/fix.php?id=48364&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=48364&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=48364&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=48364&r=needscript Try newer version: http://bugs.php.net/fix.php?id=48364&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=48364&r=support Expected behavior: http://bugs.php.net/fix.php?id=48364&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=48364&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=48364&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=48364&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=48364&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=48364&r=dst IIS Stability: http://bugs.php.net/fix.php?id=48364&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=48364&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=48364&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=48364&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=48364&r=mysqlcfg