#37727 [NEW]: isset return a false positive between array key and string

From: decryptus at gmail dot com Operating system: * PHP version: 4.4.2 PHP Bug Type: Scripting Engine problem Bug description: isset return a false positive between array key and string Description: ------------ There is a problem when I test if an array key exists on a string with the function isset(). isset return true but $foo is not an array and error_reporting doesn't display an error. Reproduce code: --------------- $foo = 'foo'; var_dump($foo); echo '<br />'; var_dump(isset($foo['bar'])); Expected result: ---------------- string(3) "foo" bool(false) Actual result: -------------- string(3) "foo" bool(true) -- Edit bug report at http://bugs.php.net/?id=37727&edit=1 -- Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=37727&r=trysnapshot44 Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=37727&r=trysnapshot52 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=37727&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=37727&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=37727&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=37727&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=37727&r=needscript Try newer version: http://bugs.php.net/fix.php?id=37727&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=37727&r=support Expected behavior: http://bugs.php.net/fix.php?id=37727&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=37727&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=37727&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=37727&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=37727&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=37727&r=dst IIS Stability: http://bugs.php.net/fix.php?id=37727&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=37727&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=37727&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=37727&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=37727&r=mysqlcfg