#37917 [NEW]: Original Array modified after copy

From: andrea dot busia at axis-sv dot it Operating system: Linux / WinXp PHP version: 5.1.4 PHP Bug Type: Arrays related Bug description: Original Array modified after copy Description: ------------ First problem: If I Create an array setting an element to a string and another element as a reference to the first, then copy the array into an other variable, if i modify the second variable also the original array is modified. Second problem: why the second code line ($a[0]="foo";) produces [0]=> &string(3) "foo" instead of [0]=> string(3) "foo" Thanks Andrea Busia Reproduce code: --------------- <? $a=array(); $a[0]="foo"; $a[1] =& $a[0]; var_dump($a); $b=$a; $b[0]="bar"; var_dump($a); ?> Expected result: ---------------- array(2) { [0]=> string(3) "foo" [1]=> &string(3) "foo" } array(2) { [0]=> string(3) "foo" [1]=> &string(3) "foo" } Actual result: -------------- array(2) { [0]=> &string(3) "foo" [1]=> &string(3) "foo" } array(2) { [0]=> &string(3) "bar" [1]=> &string(3) "bar" } -- Edit bug report at http://bugs.php.net/?id=37917&edit=1 -- Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=37917&r=trysnapshot44 Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=37917&r=trysnapshot52 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=37917&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=37917&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=37917&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=37917&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=37917&r=needscript Try newer version: http://bugs.php.net/fix.php?id=37917&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=37917&r=support Expected behavior: http://bugs.php.net/fix.php?id=37917&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=37917&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=37917&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=37917&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=37917&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=37917&r=dst IIS Stability: http://bugs.php.net/fix.php?id=37917&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=37917&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=37917&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=37917&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=37917&r=mysqlcfg