#32833 [NEW]: Invalid opcode

From: jason at amp-design dot net Operating system: CentOS 4 / RHEL 3 PHP version: 5CVS-2005-04-26 (dev) PHP Bug Type: Zend Engine 2 problem Bug description: Invalid opcode Description: ------------ Trying to concatenate on to a new/empty array element with the array push assignment operator, [] =, causes PHP to create a fatal error. This is tested with the CVS snapshot http://snaps.php.net/php5-200504260830.tar.gz Although the code I have given below is technically not correct because you can not concatenate a string on to an empty/new array element, it should be seen as an warning and not a fatal error (See notes on expected result). Also, the error is not very descriptive from a end user's point of view. I assume the invalid opcode error is obviously a generic error message that is used by you guys at Zend for debugging. Previous versions of PHP seem to inconsistent. The reproducable code doesn't even give me a warning message when tested under PHP5.0.4. Surely it would be right to make this consistent with concatenating an undefined variable, by making a "Notice: Undefined variable: test[]" error. Reproduce code: --------------- <?php $test = array(); $test[] .= 'blah'; ?> Expected result: ---------------- Some form of warning stating that you can not concatenate to an empty/undefined array element. This should be consistent with the fact that if you did... <?php $f .= 'foo bar'; ?> that you would get a warning message because $f has not been defined before. (i.e. Notice: Undefined variable: f) Actual result: -------------- Fatal error: Invalid opcode 30/16/8 -- Edit bug report at http://bugs.php.net/?id=32833&edit=1 -- Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=32833&r=trysnapshot4 Try a CVS snapshot (php5.0): http://bugs.php.net/fix.php?id=32833&r=trysnapshot50 Try a CVS snapshot (php5.1): http://bugs.php.net/fix.php?id=32833&r=trysnapshot51 Fixed in CVS: http://bugs.php.net/fix.php?id=32833&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=32833&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=32833&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=32833&r=needscript Try newer version: http://bugs.php.net/fix.php?id=32833&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=32833&r=support Expected behavior: http://bugs.php.net/fix.php?id=32833&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=32833&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=32833&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=32833&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=32833&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=32833&r=dst IIS Stability: http://bugs.php.net/fix.php?id=32833&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=32833&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=32833&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=32833&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=32833&r=mysqlcfg