The Runtime Environment: HHVM While PHP and Hack provide the syntax and logic, the HipHop Virtual Machine (HHVM) is the engine that executes this code. When you load Facebook in your browser, you interact with a sophisticated web application that feels instantaneous and responsive.
Building Facebook's Custom Tech Stack Strategy: Core Languages and Infrastructure
Python: Often utilized for scripting, automation, and data analysis tasks within the engineering workflow. CSS/HTML: The standard languages for structuring and styling web pages.
This infrastructure is designed for redundancy and speed, ensuring that the code is compiled and executed as efficiently as possible to serve content to users around the world. The combination of HHVM, PHP, and Hack runs on thousands of servers, managed through a custom-built orchestration system.
Building Facebook's Custom Tech Stack Strategy: HHVM, PHP, and Hack
The Primary Backend Language: PHP Facebook's infrastructure is famously built on PHP, a server-side scripting language designed for web development. HHVM is a just-in-time (JIT) compiler that converts Hack and PHP code into highly optimized machine code at runtime.
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