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Developers can maintain their sanity by refactoring such an app orredesigning it in flight. The refactoring cure for the all-in-one page is thePage Controller. This design pattern is appropriate in places where a singlecomponent has the dual responsibilities of logic and display.This article will explain how Page Controller works, when to use it, and howto refactor your multifunction pages. It includes a sample implementationin PHP, but in true pattern style it’s quite portable. Case 
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