#43785 [NEW]: the puzzling References Design

From: hackfan at vip dot sina dot com Operating system: Windows XP SP2 PHP version: 5.2.5 PHP Bug Type: Scripting Engine problem Bug description: the puzzling References Design Description: ------------ When I use referenes to an unvalued var, I found it valued to NULL and there isn't a notice printed. Then I'd like to ask: what is notice designed for? Reproduce code: --------------- <?php error_reporting(E_ALL); $b = &$a; $a++; echo $a; ?> Expected result: ---------------- PHP Notice: Undefined variable: a in E:\a.php on line 4 1 Actual result: -------------- 1 -- Edit bug report at http://bugs.php.net/?id=43785&edit=1 -- Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=43785&r=trysnapshot44 Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=43785&r=trysnapshot52 Try a CVS snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=43785&r=trysnapshot53 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=43785&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=43785&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=43785&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=43785&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=43785&r=needscript Try newer version: http://bugs.php.net/fix.php?id=43785&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=43785&r=support Expected behavior: http://bugs.php.net/fix.php?id=43785&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=43785&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=43785&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=43785&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=43785&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=43785&r=dst IIS Stability: http://bugs.php.net/fix.php?id=43785&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=43785&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=43785&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=43785&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=43785&r=mysqlcfg