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This course aims to explain the concepts of types, type systems, and subtyping relations in PHP. By the end of the course, learners will understand the PHP type system, how it checks for types, implements Liskov's Substitution Principle (LSP) for subtyping relations, and the impact of the strict_type declare on PHP's type system. The course teaches skills such as analyzing type systems, understanding subtyping relations, and implementing Liskov's Substitution Principle. The teaching method involves theoretical explanations and practical examples. This course is intended for PHP developers looking to deepen their understanding of PHP's type system and improve their coding practices.
