#39011 [Com]: foreach($_GET as $key => &$value) causes later bugs passing $_GET as a paramete

ID: 39011 Comment by: plyrvt at mail dot ru Reported By: php_bug dot email at email dot digiways dot com Status: Open Bug Type: Arrays related Operating System: Windows XP PHP Version: 5.1.6 New Comment: Confirm with 5.1.6: <?php $a['b']='foo'; function boo($_params){ $_params['b'] = 'bar'; echo $a['b']; } foreach($a as $key => &$val) {} // ?! echo $a['b']; boo($a); echo $a['b']; ?> If you comment out foreach loop or remove & near $val, code works OK. Loop does nothing and $val is *never* mentioned in code elsewhere. Previous Comments: ------------------------------------------------------------------------ [2006-10-01 21:37:06] php_bug dot email at email dot digiways dot com This problem affects all the arrays and not just the $_GET one. Please note that $value is not reused outside of the foreach loop. Effectively this renders foreach by reference useless. Another very simple script which reproduces the problem: $myarray = array( 'mykey' => 'foo' ); function doit($tmp) { $tmp['mykey'] = 'bar'; } foreach($myarray as $key => &$value) {} echo $myarray['mykey']."\n"; doit($myarray); echo $myarray['mykey']."\n"; and outputs foo bar instead of foo foo ------------------------------------------------------------------------ [2006-10-01 21:00:11] php_bug dot email at email dot digiways dot com Where exactly is this behaviour documented? Can you point to the documentation page as I failed to find this. Also, another defect http://bugs.php.net/bug.php?id=29992 which was referenced here is a different problem. In my case I do not reuse the reference variable $value . ------------------------------------------------------------------------ [2006-10-01 20:39:17] iliaa@php.net Thank you for taking the time to write to us, but this is not a bug. Please double-check the documentation available at http://www.php.net/manual/ and the instructions on how to report a bug at http://bugs.php.net/how-to-report.php bogus ------------------------------------------------------------------------ [2006-10-01 20:24:34] judas dot iscariote at gmail dot com this is the expected behaviuor, and not a bug. :P the reasons are clearly explained by gardan at gmx dot de on this report, please do a search before reporting http://bugs.php.net/bug.php?id=29992 ------------------------------------------------------------------------ [2006-10-01 20:13:53] sitnikov at infonet dot ee confirmed with PHP Version 5.2.0RC5-dev ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at http://bugs.php.net/39011 -- Edit this bug report at http://bugs.php.net/?id=39011&edit=1