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Dealing With Legacy PHP Applications
This document discusses strategies for dealing with legacy PHP code, including separating controllers and views, removing dependencies on global variables, refactoring procedural code to be object-oriented, and untangling nested require statements. Specific problems in legacy PHP code are said to include mixing of PHP and HTML, overuse of requires instead of method calls, and excessive use of global variables. The document provides examples of refactoring code to address these issues.
