Edit report at https://bugs.php.net/bug.php?id=64066&edit=1
ID: 64066 Updated by: tyr...@php.net Reported by: w at ndrille dot fr Summary: foreach with reference alter variable -Status: Open +Status: Not a bug Type: Bug Package: Testing related Operating System: Linux and Windows PHP Version: 5.4.11 Block user comment: N Private report: N New Comment: Sorry, but your problem does not imply a bug in PHP itself. For a list of more appropriate places to ask for help using PHP, please visit http://www.php.net/support.php as this bug system is not the appropriate forum for asking support questions. Due to the volume of reports we can not explain in detail here why your report is not a bug. The support channels will be able to provide an explanation for you. Thank you for your interest in PHP. It is a documented behavior: http://php.net/manual/en/control-structures.foreach.php "Reference of a $value and the last array element remain even after the foreach loop. It is recommended to destroy it by unset()." Previous Comments: ------------------------------------------------------------------------ [2013-01-24 23:49:05] w at ndrille dot fr Description: ------------ When we use foreach with reference and use foreach again with the same variable without doing any action, php will alter array: The last value is doubled Test script: --------------- <?php $a = array(1,2,3); $z = $a; foreach ($a as &$b){} foreach ($a as $b){} print_r($a); if ($a != $z) print('bug'); ?> Expected result: ---------------- Array ( [0] => 1 [1] => 2 [2] => 3 ) Actual result: -------------- Array ( [0] => 1 [1] => 2 [2] => 2 ) bug ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=64066&edit=1 -- PHP Quality Assurance Mailing List <http://www.php.net/> To unsubscribe, visit: http://www.php.net/unsub.php
