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DevShed continues their "serializing objects" series today with part two of the series, highlighting the use of the sleep and wakeup functionality of PHP to help with the serialization.
After refreshing the concepts that I deployed in the first part of this series, it's time to focus on the topics that I'll cover in this article, so you'll know what to expect before you continue reading. In this second part, I'll explain how to use objects in conjunction with the "__sleep()" and "__wakeup() magic functions respectively, in order to get the most out of them.
They start with a look at defining self-saving objects with their ObjectSaver class developed earlier. Building on that reminder, they integrate the "__sleep()" and "__wakeup()" functionality to handle calls immediately before and immediately after the handling of the object. They then use this new functionality to create persistent objects, capable of maintaining values across page requests.