From:
Operating system: (Arch)Linux
PHP version: 5.3.2
Package: Scripting Engine problem
Bug Type: Bug
Bug description:var_dump() invalid/slow *RECURSION* detection
Description:
------------
The var_dump() function doesn't detect recursion properly(aka the first
time).
The code sample will show that var_dump() will print de "second" twice
instead
of once like in print_r().
This goes terribly wrong with large var_dumps with multiple recursion.
print_r() needed 5MiB memory for my dump. and var_dump() needed more than
the
ini_set("memory_limit", "1G") I applied.
Code for generating a big dump.
class IndexController extends Zend_Controller_Action {
public function indexAction() {
var_dump($this->_helpers);
}
}
Test script:
---------------
<?php
$array = array(
'first' => array(),
);
$array['first']['second'] = &$array['first'];
echo "<pre>\n";
var_dump($array);
echo "\n\n";
print_r($array);
echo "<pre>\n";
?>
Expected result:
----------------
<pre>
array(1) {
["first"]=>
&array(1) {
["second"]=>
*RECURSION*
}
}
Array
(
[first] => Array
(
[second] => Array
*RECURSION*
)
)
Actual result:
--------------
<pre>
array(1) {
["first"]=>
&array(1) {
["second"]=>
&array(1) {
["second"]=>
*RECURSION*
}
}
}
Array
(
[first] => Array
(
[second] => Array
*RECURSION*
)
)
--
Edit bug report at http://bugs.php.net/bug.php?id=51445&edit=1
--
Try a snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=51445&r=trysnapshot52
Try a snapshot (PHP 5.3):
http://bugs.php.net/fix.php?id=51445&r=trysnapshot53
Try a snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=51445&r=trysnapshot60
Fixed in SVN:
http://bugs.php.net/fix.php?id=51445&r=fixed
Fixed in SVN and need be documented:
http://bugs.php.net/fix.php?id=51445&r=needdocs
Fixed in release:
http://bugs.php.net/fix.php?id=51445&r=alreadyfixed
Need backtrace:
http://bugs.php.net/fix.php?id=51445&r=needtrace
Need Reproduce Script:
http://bugs.php.net/fix.php?id=51445&r=needscript
Try newer version:
http://bugs.php.net/fix.php?id=51445&r=oldversion
Not developer issue:
http://bugs.php.net/fix.php?id=51445&r=support
Expected behavior:
http://bugs.php.net/fix.php?id=51445&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=51445&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=51445&r=submittedtwice
register_globals:
http://bugs.php.net/fix.php?id=51445&r=globals
PHP 4 support discontinued: http://bugs.php.net/fix.php?id=51445&r=php4
Daylight Savings: http://bugs.php.net/fix.php?id=51445&r=dst
IIS Stability:
http://bugs.php.net/fix.php?id=51445&r=isapi
Install GNU Sed:
http://bugs.php.net/fix.php?id=51445&r=gnused
Floating point limitations:
http://bugs.php.net/fix.php?id=51445&r=float
No Zend Extensions:
http://bugs.php.net/fix.php?id=51445&r=nozend
MySQL Configuration Error:
http://bugs.php.net/fix.php?id=51445&r=mysqlcfg
