PH7 is a in-process library that implements a highly-efficient embeddable byte-code compiler and a virtual machine for the PHP programming language. That is, PH7 is a PHP engine that allow host-application to compile and execute PHP programs in-process. In other words, PH7 is to PHP what SQLite is to SQL. PH7 implements most of the constructs introduced by the PHP 5.3 release such as heredoc, nowdoc, gotos, classes, anonymous functions, closures and so on and introduces very powerful extensions to the PHP programming language
