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Thought this recipe was just what I wanted. Unfortunately it fell apart due to the deprecation of strftime() used on line 93. I replaced this and it now works fine on latest version of PHP (PHP8.2).
I now intend to experiment with the usage with GroupHeader/Footer pages, template pages and the use of Mini.
With apologies to Robert, the author of the original entry, I am offering the updated version on the main page. I hope you don't mind, but I don't have your email address. Dave Cooke