Summary: Introducing New PHP 8 OOP Features

In this chapter, we learned about a number of new OOP features introduced in PHP 8.

Key takeaways

Following are the key points that we cover in this chapter.

• We learned how to write better code using the new PHP 8 data types: mixed and union types.

• We also learned about how using named arguments can not only improve the readability of the code but can also help prevent accidental misuse of class methods and PHP functions, as well as provide a great way to skip over default arguments.

• We also learned how the new Attribute class can be used as an eventual replacement for PHP DocBlocks, improving the overall performance of the code while providing a solid means of documenting classes, methods, and functions.

• We looked at how PHP 8 can greatly reduce the amount of code needed by earlier PHP versions by taking advantage of constructor argument promotion and typed properties.