Microsoft has announced that it will not offer support for PHP for Windows 8.0 when it is released. Microsoft has been providing support for the development and building of the PHP programming language on Windows. This support includes developing security patches for the language and creating native Windows builds. Microsoft may see it as unnecessary to continue supporting a native PHP build in Windows. The move could be due to the extensive PHP support already existing in the Windows Subsystem for Linux (WSL), which allows users to install various Linux distributions that run directly in Windows 10.
Source: https://www.bleepingcomputer.com/news/microsoft/microsoft-will-not-support-php-80-for-windows-in-any-capacity/