HHVM Alternatives
HHVM is described as '(HipHop Virtual Machine) is an open-source virtual machine designed for executing programs written in Hack and PHP. HHVM uses a just-in-time (JIT) compilation approach to achieve superior performance while maintaining the development flexibility that PHP provides' and is an app in the development category. There are three alternatives to HHVM for Windows and Linux. The best alternative is ExeOutput for PHP. It's not free, so if you're looking for a free alternative, you could try PHP Desktop.
ExeOutput for PHP lets you create applications in native format for Windows with PHP, JavaScript and HTML
PHP Desktop is an open source project founded by Czarek Tomczak in 2012 to provide a way for developing native desktop applications using web technologies such as PHP, HTML5, JavaScript & SQLite. It embeds a web browser, a web server and a PHP interpreter.
ZZEE PHPExe compiles PHP, HTML, Javascript, Flash and other web files into Windows GUI exes. You can rapidly develop Windows GUI applications by employing the familiar PHP web paradigm. You can use the same code for online and Windows applications with little or no modification.