Hi Markwaitling,I think serialization and unserializationis better when you compare resourcemgt and time. Using the database first you have toconsider read/write, secondly resourceconsumption on to/fro database, ideallywhatever you have in your databasethat has already been validated shouldnot be sent back to the db exceptfor comparison. Hope this helps. Osagie Samuel E ICT, University of Abuja, FCT - Abuja Nigeria. +234 7032880195 +234 7025415009 skype : osagiesammy --- On Sun, 6/10/12, markwatling@xxxxxxxxx <markwatling@xxxxxxxxx> wrote: From: markwatling@xxxxxxxxx <markwatling@xxxxxxxxx> Subject: Serialization v. Database Write/Read To: php-objects@xxxxxxxxxxxxxxx Date: Sunday, June 10, 2012, 12:05 AM Hi All Looking at moving object data between pages within a session, does anyone know which is more efficient, in resource management and time, serializing & unserializing the object to/from a session variable or writing the object to the database and reading back on the new page. Thanks Mark [Non-text portions of this message have been removed]