From: BenBE at omorphia dot de
Operating system: Windows 2K
PHP version: 5.2.0
PHP Bug Type: Scripting Engine problem
Bug description: Array assignment without references
Description:
------------
When assigning an array by-value into itself PHP will insert a
self-referencing Array into the new entry
Reproduce code:
---------------
$a = array();
$a[] =& $a;
print_r($a);
$b = array();
$b[] = $b;
print_r($b);
Expected result:
----------------
array(1) {
[0]=>
array(1) {
[0]=>
array(1) {
[0]=>
*RECURSION*
}
}
}
array(1) {
[0]=>
array(0) {
}
}
$b[0] should contain an empty array because $b was assigned by-value, i.e.
should get copied.
Actual result:
--------------
array(1) {
[0]=>
array(1) {
[0]=>
array(1) {
[0]=>
*RECURSION*
}
}
}
array(1) {
[0]=>
array(1) {
[0]=>
array(1) {
[0]=>
*RECURSION*
}
}
}
Comparing the references (see my entry regarding Spotting References) you
find that $b and $b[0] are different pointers and $b[0] is an array like
the one created in $a.
--
Edit bug report at http://bugs.php.net/?id=40050&edit=1
--
Try a CVS snapshot (PHP 4.4):
http://bugs.php.net/fix.php?id=40050&r=trysnapshot44
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=40050&r=trysnapshot52
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=40050&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=40050&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=40050&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=40050&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=40050&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=40050&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=40050&r=support
Expected behavior: http://bugs.php.net/fix.php?id=40050&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=40050&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=40050&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=40050&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=40050&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=40050&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=40050&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=40050&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=40050&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=40050&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=40050&r=mysqlcfg
