#40860 [NEW]: increment operator works different than plus operator

From: tjerk dot meesters at muvee dot com Operating system: Linux 2.6 PHP version: 5.2.1 PHP Bug Type: *General Issues Bug description: increment operator works different than plus operator Description: ------------ Applying the increment operator (++) on a variable (containing a number) ending with a newline character doesn't change the variable. However, applying += 1 to the same variable does result in the right behaviour. Reproduce code: --------------- function showsucc($x) { // using increment operator $tmp = $x; $tmp++; echo "successor of $x = ",$tmp,"\n"; // using plus operator $tmp = $x; $tmp += 1; echo "result of $x + 1 = ",$tmp,"\n"; } showsucc("123\n"); showsucc("123"); Expected result: ---------------- successor of 123 = 124 result of 123 + 1 = 124 successor of 123 = 124 result of 123 +1 = 124 Actual result: -------------- successor of 123 = 123 <---- difference is here result of 123 + 1 = 124 successor of 123 = 124 result of 123 + 1 = 124 -- Edit bug report at http://bugs.php.net/?id=40860&edit=1 -- Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=40860&r=trysnapshot44 Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=40860&r=trysnapshot52 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=40860&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=40860&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=40860&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=40860&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=40860&r=needscript Try newer version: http://bugs.php.net/fix.php?id=40860&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=40860&r=support Expected behavior: http://bugs.php.net/fix.php?id=40860&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=40860&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=40860&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=40860&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=40860&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=40860&r=dst IIS Stability: http://bugs.php.net/fix.php?id=40860&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=40860&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=40860&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=40860&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=40860&r=mysqlcfg