#26054 [NEW]: using unreferenced variables does not produce errors

From: sascha dot wildgrube at steganos dot com Operating system: all PHP version: 4.3.2 PHP Bug Type: *Programming Data Structures Bug description: using unreferenced variables does not produce errors Description: ------------ Any variable identifier can be used in a statement - even if it hasn't been referenced before - without producing an error. Most of the time when debuggong php code is spent for searching typos in variable names. I consider it a bug that php does not produce and display error if it encounters an unreferenced variable in a statement. A solution could be a "strict" statement. That tells php to throw errors in that case to stay backward compatible. An even better solution would be the need to Reproduce code: --------------- $nValue1 = 10; $nValue2 = 20; print($nVale1 + $nValue2); Expected result: ---------------- Expected: 30 No, it is: 20 Why, because of the typo in line 3. What I want to happen in that case is this: Parse error: parse error in /somefile.php4 on line 3: unreferenced object "$nVale1" Actual result: -------------- 20 -- Edit bug report at http://bugs.php.net/?id=26054&edit=1 -- Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=26054&r=trysnapshot4 Try a CVS snapshot (php5): http://bugs.php.net/fix.php?id=26054&r=trysnapshot5 Fixed in CVS: http://bugs.php.net/fix.php?id=26054&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=26054&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=26054&r=needtrace Try newer version: http://bugs.php.net/fix.php?id=26054&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=26054&r=support Expected behavior: http://bugs.php.net/fix.php?id=26054&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=26054&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=26054&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=26054&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=26054&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=26054&r=dst IIS Stability: http://bugs.php.net/fix.php?id=26054&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=26054&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=26054&r=float