As you are all aware...
Originally Posted by php.net
Please note that the PHP 5.3 series will enter an end of life cycle and receive only critical fixes as of March 2013. All users of PHP are encouraged to upgrade to PHP 5.4.

Furthermore (from php page wikipedia - php 5.3)...
Quote
Supported until: 2014-07

It's ridiculous to have to ask hosts to downgrade php, don't you think? How long before they will no longer comply?