Using ${} is a way to create dynamic variables, simple example: ${‘a’ . ‘b’} = ‘hello there’; echo $ab; // hello there

Source: Using braces with dynamic variable names in PHP – Stack Overflow

Adobe AIR (formerly Adobe Integrated Runtime) is a cross-platform runtime system developed by Adobe Systems for building desktop applications and mobile applications, programmed using Adobe Flash, ActionScript and optionally Apache Flex. The runtime supports installable applications on Windows, OS X and mobile operating systems including Android, iOS and BlackBerry Tablet OS. It also originally ran on Linux, but support was discontinued as of version 2.6 in 2011.

Source: Adobe AIR – Wikipedia

Model–view–controller (MVC) is an architectural pattern commonly used for developing user interfaces that divides an application into three interconnected parts. This is done to separate internal representations of information from the ways information is presented to and accepted from the user. The MVC design pattern decouples these major components allowing for efficient code reuse and parallel development.

Traditionally used for desktop graphical user interfaces (GUIs), this architecture has become popular for designing web applications and even mobile, desktop and other clients. Popular programming languages like Java, C#, Ruby, PHP and others have popular MVC frameworks that are currently being used in web application development straight out of the box.

Source: Model–view–controller – Wikipedia

11 Best PHP Frameworks for Modern Web Developers in 2018

Source: 11 Best PHP Frameworks for Modern Web Developers in 2018

List of JavaScript libraries

Source: List of JavaScript libraries – Wikipedia

Node.js is an open-source, cross-platform JavaScript run-time environment for executing JavaScript code server-side. Historically, JavaScript was used primarily for client-side scripting, in which scripts written in JavaScript are embedded in a webpage’s HTML, to be run client-side by a JavaScript engine in the user’s web browser. Node.js enables JavaScript to be used for server-side scripting, and runs scripts server-side to produce dynamic web page content before the page is sent to the user’s web browser. Consequently, Node.js has become one of the foundational elements of the “JavaScript everywhere” paradigm,[5] allowing web application development to unify around a single programming language, rather than rely on a different language for writing server side scripts.

Though .js is the conventional filename extension for JavaScript code, the name “Node.js” does not refer to a particular file in this context and is merely the name of the product. Node.js has an event-driven architecture capable of asynchronous I/O. These design choices aim to optimize throughput and scalability in Web applications with many input/output operations, as well as for real-time Web applications (e.g., real-time communication programs and browser games).[6]

The Node.js distributed development project, governed by the Node.js Foundation,[7] is facilitated by the Linux Foundation’s Collaborative Projects program.[8]

Corporate users of Node.js software include GoDaddy,[9] Groupon,[10] IBM,[11] LinkedIn,[12][13] Microsoft,[14][15] Netflix,[16] PayPal,[17][18] Rakuten, SAP, Tuenti,[19] Voxer,[20] Walmart,[21] and Yahoo!.[22]

Source: Node.js – Wikipedia

Source: sql – What is a stored procedure? – Stack Overflow

MongoDB is a free and open-source cross-platform document-oriented database program. Classified as a NoSQL database program, MongoDB uses JSON-like documents with schemas. MongoDB is developed by MongoDB Inc., and is published under a combination of the GNU Affero General Public License and the Apache License.

Source: MongoDB – Wikipedia

Source: Xcode – Apple Developer

Sencha Touch is a user interface (UI) JavaScript library, or web framework, specifically built for the Mobile Web. It can be used by Web developers to develop user interfaces for mobile web applications that look and feel like native applications on supported mobile devices. It is based on web standards such as HTML5, CSS3 and JavaScript. The goal of Sencha Touch is to facilitate quick and easy development of HTML5 based mobile apps which run on Android, iOS, Windows, Tizen and BlackBerry devices, simultaneously allowing a native look and feel to the apps.

Source: Sencha Touch – Wikipedia