Cascading PHP dropdowns - help required

I have two dropdown menu's. Depending on the selection in the first dropdown the content of the second dropdown needs to change.

I have attached my code and need to update $thissport to be whatever is selected as camp.

Java JavaScript JSP MySQL PHP Arquitetura de software Teste de Software Hospedagem Web Gestão de Site Teste de Website

ID do Projeto: #2701354

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