#35870 [NEW]: isset() on ternary operator incorrectly evaluates conditions

From: jevon at jevon dot org Operating system: Windows XP PHP version: 5.1.1 PHP Bug Type: Scripting Engine problem Bug description: isset() on ternary operator incorrectly evaluates conditions Description: ------------ I'm not sure if this has been submitted before, because it's a bit difficult to search for 'isset' on bugs.php.net. Basically if you have isset() in a ternary operation (?:), PHP currently evaluates all items in the operation, whereas it shouldn't. I guess this is because isset() is a language construct. Reproduce code: --------------- <?php $x = array(); if (isset($x[1])) echo $x[1]; else echo 0; echo isset($x[1]) ? 0 : $x[1]; ?> Expected result: ---------------- 0 0 Actual result: -------------- 0 PHP Notice: Undefined offset: 1 in test.php on line 8 -- Edit bug report at http://bugs.php.net/?id=35870&edit=1 -- Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=35870&r=trysnapshot44 Try a CVS snapshot (PHP 5.1): http://bugs.php.net/fix.php?id=35870&r=trysnapshot51 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=35870&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=35870&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=35870&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=35870&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=35870&r=needscript Try newer version: http://bugs.php.net/fix.php?id=35870&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=35870&r=support Expected behavior: http://bugs.php.net/fix.php?id=35870&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=35870&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=35870&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=35870&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=35870&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=35870&r=dst IIS Stability: http://bugs.php.net/fix.php?id=35870&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=35870&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=35870&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=35870&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=35870&r=mysqlcfg