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And they have written compilers for PHP that compile to machine code that runs 4 to 10 times faster than regular PHP. &nbsp;They have also written their own web servers which would be in C and C++. &nbsp;And they have hundreds of software engineers doing this. &nbsp;This page <a href="https://code.facebook.com/" rel="ugc">https://code.facebook.com/</a>&nbsp;will tell you a lot about what they do.
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And they have written compilers for PHP that compile to machine code that runs 4 to 10 times faster than regular PHP.  They have also written their own web servers which would be in C and C++.  And they have hundreds of software engineers doing this.  This page https://code.facebook.com/ [https://code.facebook.com/] will tell you a lot about what they do.

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Facebook originated to PHP and ever since tries to find ways to speed up the process....The latest programming trend these days for this kind of web sites is Node.js...with 1 million connections you just can't go wrong
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Facebook originated to PHP and ever since tries to find ways to speed up the process....The latest programming trend these days for this kind of web sites is Node.js...with 1 million connections you just can't go wrong

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I want to know what code Facebook is written in.
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I want to know what code Facebook is written in.

I'm thinking of starting a social media network, what programming language is Facebook written in?

A social networking service is a platform to build social networks or relations among people who share similar interests, activities, backgrounds or real-life connections. A social network service consists of a representation of each user (often a profile), his or her social links, and a variety of additional services such as career services. Social network sites are web-based services that allow individuals to create a public profile, create a list of users with whom to share connections, and view and cross the connections within the system. Social networking sites allow users to share ideas, pictures, posts, activities, events, and interests with people in their network. Other popular services include Google+, LinkedIn, Instagram, Reddit, Pinterest, Vine and Tumblr.

Social Networking

Facebook is an online social networking service. After registering to use the site, users can create a user profile, add other users as "friends", exchange messages, post status updates and photos and receive notifications when others update their profiles. Additionally, users may join common-interest user groups, organized by workplace, school or college, or other characteristics, and categorize their friends into lists such as "People From Work" or "Close Friends". Notable features include a News Feed, Friends, a Wall, a Timeline, the Like button, Messages and an inbox, Notifications and Networks and groups.

Facebook

Network analysis is the process of identifying and remediating the processes and systems within a network, including performance, connectivity and security. The process is performed through the use of tools developed for monitoring and analyzing network activity. Network problems that involve finding an optimal way of doing something are studied under the name combinatorial optimization. Examples include network flow, shortest path problem, transport problem, transshipment problem, location problem, matching problem, assignment problem, packing problem, routing problem, Critical Path Analysis and PERT (Program Evaluation & Review Technique).

Network Analysis

Network design and methodology, also known as network architecture, is the design of a communication network. It is a framework for the specification of a network's physical components and their functional organization and configuration, its operational principles and procedures, as well as data formats used in its operation. In telecommunication, the specification of a network architecture may also include a detailed description of products and services delivered via a communications network, as well as detailed rate and billing structures under which services are compensated.

Network Architecture

Network Management involves issues that are independent of specific hardware or software, including email policies, upgrade planning, backup scheduling and working with managed service providers for Desktop-As-A-Service (DaaS), Software-As-A-Service (SaaS) and the like through the use of tools, coupled with manufacturer standards, best practice guidelines, policies and procedures plus all other relevant documentation. Network management also includes monitoring, alerting and reporting, management reporting, planning for device or service updates, the backup of configurations, the setting of key performance indicators and measures (KPIs/KPMs), associated service level agreements and problem records as part of the IT Service Management (ITSM) framework.