The requirements are absolutely without which you can not use the software due to its construction and to facilitate the interface for the user.
The system needs to act (server)
During the installation of some of these requirements is checked by the installer.
Because I used a few ready-made components and software solutions I put all the information about their authors as required.
Program name/library: phpBlueDragon WykopAPI
License: Freeware and Payware
Program name/library: WykopAPI
Program name/library: Ikona Wykop
Program name/library: CodeIgniter
Program name/library: jQuery
Program name/library: jQuery UI
Program name/library: PHPMailer
Program name/library: Whipping File Inputs Into Shape with Bootstrap 3
Program name/library: Bootstrap
Program name/library: Lightbox
Program name/library: SimpleIcon, Flaticon, Elegant Themes, Freepik, Vectors Market, Dave Gandy, Madebyoliver, Gregor Cresnar, Google
License: CC 3.0 BY