Bug #51445 [Opn->Csd]: var_dump() invalid/slow *RECURSION* detection

Edit report at http://bugs.php.net/bug.php?id=51445&edit=1

 ID:               51445
 Updated by:       [email protected]
 Reported by:      php at bfanger dot nl
 Summary:          var_dump() invalid/slow *RECURSION* detection
-Status:           Open
+Status:           Closed
 Type:             Bug
 Package:          Scripting Engine problem
 Operating System: (Arch)Linux
 PHP Version:      5.3.2
-Assigned To:      
+Assigned To:      felipe

 New Comment:

This bug has been fixed in SVN.

Snapshots of the sources are packaged every three hours; this change
will be in the next snapshot. You can grab the snapshot at
http://snaps.php.net/.
 
Thank you for the report, and for helping us make PHP better.




Previous Comments:
------------------------------------------------------------------------
[2010-04-02 23:44:11] [email protected]

Automatic comment from SVN on behalf of felipe
Revision: http://svn.php.net/viewvc/?view=revision&revision=297375
Log: - Fixed bug #51445 (var_dump() invalid/slow *RECURSION* detection)

------------------------------------------------------------------------
[2010-03-31 14:09:51] php at bfanger dot nl

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 this bug report at http://bugs.php.net/bug.php?id=51445&edit=1