#44952 [NEW]: isset() does not checks correctly variable variable

From: vesko at webstudiobulgaria dot com Operating system: Debian Lenny PHP version: 5.3CVS-2008-05-09 (snap) PHP Bug Type: Scripting Engine problem Bug description: isset() does not checks correctly variable variable Description: ------------ When giving variable variable argument to isset() it is not checking correctly. It was working property with the snap from 21 February (and of course works correctly with php 5.2 branch). Reproduce code: --------------- <? $var_name = 'unexisting'; if(isset($$var_name)) { print $$var_name; } ?> Expected result: ---------------- //print nothing Actual result: -------------- Notice: Undefined variable: unexisting in /home/local/test/t3.php on line 5 -- Edit bug report at http://bugs.php.net/?id=44952&edit=1 -- Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=44952&r=trysnapshot52 Try a CVS snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=44952&r=trysnapshot53 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=44952&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=44952&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=44952&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=44952&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=44952&r=needscript Try newer version: http://bugs.php.net/fix.php?id=44952&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=44952&r=support Expected behavior: http://bugs.php.net/fix.php?id=44952&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=44952&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=44952&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=44952&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=44952&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=44952&r=dst IIS Stability: http://bugs.php.net/fix.php?id=44952&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=44952&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=44952&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=44952&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=44952&r=mysqlcfg