Merhaba

Sunucularinizda hangi php surumunu kullaniyorsunuz?
Kontrol etmek icin ssh den calistirin;

php -v

Benimkisi biraz eski. PHP 5.2.17 
root@server [~]# php -v
PHP 5.2.17 (cli) (built: Oct  5 2012 06:35:04) 
Copyright (c) 1997-2010 The PHP Group
Zend Engine v2.2.0, Copyright (c) 1998-2010 Zend Technologies
    with eAccelerator v0.9.6.1, Copyright (c) 2004-2010 eAccelerator, by eAccelerator
    with the ionCube PHP Loader v4.2.2, Copyright (c) 2002-2012, by ionCube Ltd., and
    with Zend Optimizer v3.3.9, Copyright (c) 1998-2009, by Zend Technologies