Bug #81228 [Opn->Nab]: print_r incorrectly linked to pass by reference loop

Edit report at https://bugs.php.net/bug.php?id=81228&edit=1 ID: 81228 Updated by: cmb@php.net Reported by: manuel at m-arzberger dot de Summary: print_r incorrectly linked to pass by reference loop -Status: Open +Status: Not a bug Type: Bug Package: *General Issues Operating System: Ubuntu 20.04 PHP Version: 7.4.21 -Assigned To: +Assigned To: cmb Block user comment: N Private report: N New Comment: See the warning box in the docs: <https://www.php.net/manual/en/control-structures.foreach.php>. Previous Comments: ------------------------------------------------------------------------ [2021-07-06 19:25:34] manuel at m-arzberger dot de Description: ------------ I'm using PHP 7.4.21 on Ubuntu 20.04 When you loop through an array the first time with pass by reference and then do it again without passing by reference, print_r will return unexpected values. The last item of the array will not be displayed, but the second to last. The array shouldn't be linked in any way to the pass be reference loop at the point. Test script: --------------- <?php $array = array('one', 'two', 'three', 'four'); foreach($array as &$value) { } foreach($array as $value) { } print_r($array); Expected result: ---------------- Array ( [0] => one [1] => two [2] => three [3] => four ) Actual result: -------------- Array ( [0] => one [1] => two [2] => three [3] => three ) ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=81228&edit=1