These license keys/activation codes are universal for PhpStorm all versions on Windows, Mac OS X and Linux platforms, they are even working well for PhpStorm 3 or older versions. The latest tests were made for PhpStorm v2017.1.4 on both Windows 8.1 and Mac OS X.
PHP has been giving dramatic improvements in recent years. However, as PHP itself does not formulate a standardized use method, together with the bad or even wrong PHP practices conveyed from many outdated PHP tutorials and books, this often makes PHP beginners astray. So PHP: The Right Way was born.
The classic PHP has won a rebirth, so it's time for the modern PHP to throw away its old burden and follow better practices. But almost all the existing PHP books and online tutorials have been out of date for a long time, such that it is difficult to reflect the new features and good practices of modern PHP.
PHP 5 Power Programming is a classic must-read authoritative book with 720 pages of content published in 2004, cooperatively written by 3 PHP masters (PHP 5's chief designer - Andi Gutmans, PEAR's founder - Stig Saether Bakken and PHP's core contributor - Derick Rethans). Now its full copyright has been completely free.
For developing web-based and database driven high-performance, dynamic Web applications at express speed, PHP (powerful scripting language) and MySQL (quick and reliable database) are absolutely the only pair of best partners. Tutorials about them, I came close to forget this classic bible-level PHP and MySQL Web Development, Fourth Edition (although a bit old without involving the newest features).