php[tek] 2023
Immutability to Save an Ever-Changing World
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Immutability to Save an Ever-Changing World
Speaker: Andrew Cassell

Level: Intermediate (some prior knowledge necessary)
Length: Standard Session (45-60 minutes)

Description:
Want to build software that is more testable, easier to modify, and has fewer lines of code? Architecture with more immutable objects that are always in a valid state is the most important lesson I have learned in building better software applications. Using immutable value objects will lead to less checking, fewer bugs, and more DRY code, and will help avoid the “spooky action at a distance” problem in PHP. We will also learn how to use immutable objects and immutable collections to improve design of our mutable entities. Lastly, we’ll see how our immutable modeling approach can drastically reduce the complexity of things in our systems that are mutable.

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