Hi, For php 5.4.0 support I would upgrade memcached extensions to version 2.0.0b2 (which includes the following commit: https://github.com/php-memcached-dev/php-memcached/commit/df9fc6360eaad4c368e04dc720e5d37edb78c771 ).
Also, I would add to it this later commit: https://github.com/php-memcached-dev/php-memcached/commit/df9fc6360eaad4c368e04dc720e5d37edb78c771 Kaplan
