model view controller - Simple PHP error MVC structure -

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for school assignment have make website piece of back-end in it. learned mvc structure clean , logic overview of our folders/classes in php. however, when try 1 item database, browser gives error 'undefined variable'. after 1,5 days of failed attempts decided give shot on stackoverflow. i'm willing screenshare if me. explaining code in here not make problem clear i'm affraid :/

thx in advance,

bernd


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