Description:
------------
Test script crashes after "eating" over 1GB of RAM.
php-cli.ini has memory_limit = -1
The script was run on Windows Server 2008 SP2 and Windows XP SP2 with same 
error. Multiple PHP binaries were tested, with same outcome:

- http://emsmith.net/gtk/php-5.3.15-nts-php-gtk-snapshot.zip
- http://emsmith.net/gtk/php-5.4.5-nts-php-gtk-snapshot.zip
- http://emsmith.net/gtk/php-gtk-2012-5.4-snapshot.zip
- php-gtk compiled from latest https://github.com/auroraeosrose/php-gtk-src in 
conjunction with PHP 5.4.10-nts binary package

The problem is not in strpos: simply accessing the data (ex. $a=$item['descr']) 
crashes the script.

Older php-gtk package works (http://gtk.php.net/do_download.php?
download_file=php-gtk-2.0.1-win32-nts.zip), even with 100k elements.

Reducing the number of elements to 5000 solves the bug, but my real application 
uses 100k elements.

Using connect_simple() on every button (instead of connect_signals()) solves the 
bug in the test script but not in the complete application.

Test script:
---------------
http://www.faieta.net/wp/wp-content/uploads/2012/12/php_outofmem.phps


Expected result:
----------------
Press button "Foo" -> "Search OK"
 then
Press button "Bar" -> "Bar was clicked"
 then
Press button "Foo" -> "Search OK"


Actual result:
--------------
Press button "Foo" -> "Search OK"
 then
Press button "Bar" -> "Bar was clicked"
 then 
Press button "Foo" -> Out of memory