Appendix

Three lookup tables for the moments when you need a fact, not a chapter. A - Coming from Python, JavaScript, or Java maps the constructs you already know to their PHP spelling, one row each. B - PHP 8.0 to 8.5 at a Glance lists what each version added, so you know what your project’s PHP can use. C - Vocabulary defines the words that come up in PHP conversations and nowhere else.