Script has been updated and slightly re-written.
Tested on V1.2.2.2 (current Github version) but should work on previous PDO versions.
This version uses existing session and not cookies.
Any problems let me know.
Enjoy
PHP:/***************************************************************************
* Recently Viewed Items Mod
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*
* The function 'recently_viewed_items' below (lines 82 - 118) can be moved to...

Recently viewed items php Version WeBid 1.2.* ONLY
Recently viewed items php Version