#40608 [NEW]: break within foreach causes strange behaviour

From: eric dot broersma at phil dot uu dot nl Operating system: Sun Solaris PHP version: 5.2.1 PHP Bug Type: Arrays related Bug description: break within foreach causes strange behaviour Description: ------------ A break within a foreach construct may cause an infinite loop when the foreach construct is nested within another foreach construct, possibly as a result of the internal array pointer of the array being foreach'ed not being reset. This problem did not occur in PHP 5.0.5, but did occur in PHP 5.2.1. Reproduce code: --------------- $w = array ( 0, 1 ); echo 'a'; foreach ( $w as $x ) { echo 'b' . $x; foreach ( $w as $z ) { echo 'c' . $z; break 1; } echo 'e' . $x; } echo 'f'; Expected result: ---------------- ab0c0e0b1c0e1f (Behaviour in PHP 5.0.5) Actual result: -------------- ab0c0e0b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0! e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b2c0e2b1c0e1b... (infinite loop) (Behaviour in PHP 5.2.1) -- Edit bug report at http://bugs.php.net/?id=40608&edit=1 -- Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=40608&r=trysnapshot44 Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=40608&r=trysnapshot52 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=40608&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=40608&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=40608&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=40608&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=40608&r=needscript Try newer version: http://bugs.php.net/fix.php?id=40608&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=40608&r=support Expected behavior: http://bugs.php.net/fix.php?id=40608&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=40608&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=40608&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=40608&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=40608&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=40608&r=dst IIS Stability: http://bugs.php.net/fix.php?id=40608&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=40608&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=40608&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=40608&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=40608&r=mysqlcfg