ID: 27598
Updated by: [EMAIL PROTECTED]
Reported By: lf at burntmail dot com
-Status: Verified
+Status: Closed
Bug Type: Zend Engine 2 problem
Operating System: *
PHP Version: 5CVS-2005-04-30
New Comment:
Fixed in CVS HEAD and PHP_5_0
Previous Comments:
------------------------------------------------------------------------
[2004-03-15 08:54:58] [EMAIL PROTECTED]
Does not leak at all with PHP_4_3 branch.
------------------------------------------------------------------------
[2004-03-14 17:48:20] lf at burntmail dot com
Description:
------------
When using array keys as variables in the list() function there is a
noticiable memory leak.
It doesn't seem to matter if you assign values to the array key's
before using them in the array.
Reproduce code:
---------------
//memory leak!
while (1)
{
$out = array();
$arr = array('a','b','c');
list($out['a'], $out['b'], $out['c']) = $arr;
}
//NO memory leak!!
while (1)
{
$out = array();
$a = &$out['a'];
$b = &$out['b'];
$c = &$out['c'];
$arr = array('a','b','c');
list($a, $b, $c) = $arr;
}
Expected result:
----------------
Output every 4000 loops
# | Memory usage
4000 | 68 KB
8000 | 68 KB
12000 | 68 KB
16000 | 68 KB
20000 | 68 KB
24000 | 68 KB
28000 | 68 KB
32000 | 68 KB
36000 | 68 KB
40000 | 68 KB
44000 | 68 KB
48000 | 68 KB
52000 | 68 KB
56000 | 68 KB
60000 | 68 KB
64000 | 68 KB
68000 | 68 KB
72000 | 68 KB
76000 | 68 KB
80000 | 68 KB
84000 | 68 KB
88000 | 68 KB
92000 | 68 KB
96000 | 68 KB
100000 | 68 KB
104000 | 68 KB
108000 | 68 KB
112000 | 68 KB
Actual result:
--------------
Output every 4000 loops
# | Memory usage
4000 | 349 KB
8000 | 630 KB
12000 | 911 KB
16000 | 1.2 MB
20000 | 1.4 MB
24000 | 1.7 MB
28000 | 2.0 MB
32000 | 2.3 MB
36000 | 2.5 MB
40000 | 2.8 MB
44000 | 3.1 MB
48000 | 3.4 MB
52000 | 3.6 MB
56000 | 3.9 MB
60000 | 4.2 MB
64000 | 4.5 MB
68000 | 4.7 MB
72000 | 5.0 MB
76000 | 5.3 MB
80000 | 5.6 MB
84000 | 5.8 MB
88000 | 6.1 MB
92000 | 6.4 MB
96000 | 6.7 MB
100000 | 6.9 MB
104000 | 7.2 MB
108000 | 7.5 MB
112000 | 7.8 MB
------------------------------------------------------------------------
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Edit this bug report at http://bugs.php.net/?id=27598&edit=1
