#33940 [NEW]: array_map fails to pass by reference when called recursively
| From: | david dot tulloh at infaze dot com dot au | Date: | Mon, 01 Aug 2005 03:05:51 +0000 |
| Subject: | #33940 [NEW]: array_map fails to pass by reference when called recursively | ||
| Groups: | php.bugs | ||
| Request: | Send a blank email to php-bugs+get-82746@lists.php.net to get a copy of this message | ||
From: david dot tulloh at infaze dot com dot au
Operating system: Debian Linux
PHP version: 5CVS-2005-08-01 (dev)
PHP Bug Type: Arrays related
Bug description: array_map fails to pass by reference when called recursively
Description:
------------
array_map fails to work recursively.
It does not pass by reference in the inner array_map call.
Changing the line to
$ret = array_map('ref_map', &$item);
provides the expected result but throws a Call-time pass-by-reference
warning.
Reproduce code:
---------------
<?php
function ref_map(&$item) {
if(!is_array($item)) {
$item = 1;
return 2;
} else {
$ret = array_map('ref_map', $item);
echo 'Inner return: '; print_r($ret);
echo 'Inner item: '; print_r($item);
return $ret;
}
}
$a = array(array(0), 0);
$ret = array_map('ref_map', $a);
echo 'Array: '; print_r($a);
echo 'Return: '; print_r($ret);
?>
Expected result:
----------------
Inner return: Array
(
[0] => 2
)
Inner item: Array
(
[0] => 1
)
Array: Array
(
[0] => Array
(
[0] => 1
)
[1] => 1
)
Return: Array
(
[0] => Array
(
[0] => 2
)
[1] => 2
)
Actual result:
--------------
Inner return: Array
(
[0] => 2
)
Inner item: Array
(
[0] => 0
)
Array: Array
(
[0] => Array
(
[0] => 0
)
[1] => 1
)
Return: Array
(
[0] => Array
(
[0] => 2
)
[1] => 2
)
--
Edit bug report at http://bugs.php.net/?id=33940&edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=33940&r=trysnapshot4
Try a CVS snapshot (php5.0): http://bugs.php.net/fix.php?id=33940&r=trysnapshot50
Try a CVS snapshot (php5.1): http://bugs.php.net/fix.php?id=33940&r=trysnapshot51
Fixed in CVS: http://bugs.php.net/fix.php?id=33940&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=33940&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=33940&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=33940&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=33940&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=33940&r=support
Expected behavior: http://bugs.php.net/fix.php?id=33940&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=33940&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=33940&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=33940&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=33940&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=33940&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=33940&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=33940&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=33940&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=33940&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=33940&r=mysqlcfg