#19140 [NEW]: foreach fails on empty or uninitialized variable

From: jc@mega-bucks.co.jp Operating system: Red Hat Linux 7.2 PHP version: 4.2.2 PHP Bug Type: Arrays related Bug description: foreach fails on empty or uninitialized variable The following code generates an error/warning: $a = return_nothing(); foreach ($a as $val) { echo "hi"; } function return_nothing() { } OUTPUT: Warning: Invalid argument supplied for foreach() in test.php on line 5 The documentation does not state what the correct/expected behaviour of foreach should be in the case of an unitialized array. It would be nice if foreach could recognize unitialized variables as being equivalent to "empty" arrays ... -- Edit bug report at http://bugs.php.net/?id=19140&edit=1 -- Try a CVS snapshot: http://bugs.php.net/fix.php?id=19140&r=trysnapshot Fixed in CVS: http://bugs.php.net/fix.php?id=19140&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=19140&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=19140&r=needtrace Try newer version: http://bugs.php.net/fix.php?id=19140&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=19140&r=support Expected behavior: http://bugs.php.net/fix.php?id=19140&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=19140&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=19140&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=19140&r=globals