PHP, CodeIgniter, Objective C, Eclipse
PHP: PHP stands for Hypertext Preprocessor and is a server-side programming language. There are many reasons to use PHP for server side programming, firstly it is a free language with no licensing fees so the cost of using it is minimal. PHP can also run on Windows, Linux and Unix servers.
CodeIgniter: CodeIgniter is loosely based on the popular model–view–controller (MVC) development pattern. While controller classes are a necessary part of development under CodeIgniter, models and views are optional. CodeIgniter can be also modified to use Hierarchical Model View Controller (HMVC) which allows developers to maintain modular grouping of Controller, Models and View arranged in a sub-directory format.
Objective C: Objective-C is a general-purpose, object-oriented programming language that adds Smalltalk-style messaging to the C programming language. It was selected as the main language used by NeXT for its NeXTSTEP operating system, from which macOS and iOS are derived.
Eclipse: Android Development Tools (ADT) is a plugin for the Eclipse IDE that is designed to give you a powerful, integrated environment in which to build Android applications.ADT extends the capabilities of Eclipse to let you quickly set up new Android projects, create an application UI, add components based on the Android