What is HIPHOP for php?

Question

What is the use for this?Any one clear my doubt please.I need to know HIPHOP

Comments

HipHop for Facebook is basically a source code to source code compiler.
(Source to Source compiler is not as our traditional turbo c++. Source to Source compiler takes source code like PHP as input and convert it into another languages source code C++. )
While traditional compiler convert the higher languages C++,java to lower languages code. But HipHop do the reverse.
Why facebook need HipHop?
Facebook is a very organization with lot of webserver having many applications,database running already.  So to save the memory and increase the speed of execution they have built this PHP transpiler. (Free and Open source)

Answer 1

HipHop for PHP is a PHP transpiler created by Facebook. By using HPHPc as a source-to-source compiler, PHP code is translated into C++, compiled into a binary and run as an executable, as opposed to the PHP's interpreter based execution. By the statistics HipHop uses improve the performance by anywhere from 3-6 times (depends on the website)

It is free and open-source software distributed under the PHP License and QueryHome is yet to use it???

Comments

Wow Its really nice feature of PHP