Chapter 5: Discovering Potential OOP Backward-Compatibility Breaks

This chapter marks the beginning of Part 2 of the book, PHP 8 Tricks. In this part, you'll discover the dark corners of PHP 8: the place where backward-compatibility breaks exist. This part gives you insight into how to avoid problems before migrating an existing application to PHP 8. You will learn what to look for in your existing code that could cause it to stop working after a PHP 8 upgrade. Once you master the topics presented in this part of the book, you will be well equipped to modify existing code in such a manner that it continues to function normally following a PHP 8 upgrade.

In this chapter, you will be introduced to new PHP 8 features specific to object-oriented ...

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