Novikov A. O.

Irkutsk National Research Technical University, Russia

Writing of dynamic websites

Hundreds of new websites appear every day. They also are filled up with hundreds of new pages and large extent of the information. But how are these new arrays of pages produced and how are they updated so quickly? In this work we may get acquainted with technologies and software systems making stream of information in the World Wide Web to develop.

Before exposure in writing of dynamic websites, it is important to understand what static website and webpage are, because they are the basis of dynamic websites. Static site is a set of HTML-pages, which are interrelated with links. Since emergence the Internet all sites have been precisely static. They have been as standard documents viewed by different users for receiving information of interest. The main drawbacks of static pages are complexity of alteration in them and complexity in upgrade of a site. Without sufficient knowledge in web programming it is impossible to operate a site. This fact pays the fiddler on work of specialists immediately. Besides, in case of increasing of page amount it is more difficult to keep sustainability of a site and accuracy of program code.

Dynamic websites are smarter for that matter. Dynamic website is a site which consists of dynamic pages – frameworks, content, scripts etc. organized as separate files. Dynamic sites in a browser are formed with several parts: framework page and content, which is kept disjoint. As a rule, a framework page is used for reflection of number of homogeneous pages. Corresponding stuff are loaded to this framework page. The main concern of dynamic websites is the division of content and design of web pages. It makes us opportunity to change the information on sites quickly and efficiently and without necessity of changing of program codes.

As we have made sense of main notions, it is time to digress into the central subject of the article – writing of dynamic web sites. We may write dynamic sites from the ground up and write high-touch all necessary program codes, scripts etc. in text processing program or integrated development environment. Modern software allows write and change dynamic web pages relatively easy. At the same time each site has at least several different divisions and subdivisions, a variety of graphic, flash-animation, music and video-files. So the problem of central storage and operation of great amount of files arises. Obviously it is necessary to create a tool, which will help us to operate a site. And we have such tool. It is a content management system.

Content management system (hereafter referred to as CMS) is a software which allows users put and change posted information without help of Web developer. Nowadays the most popular CMSs are 1C-bitrix, Joomla, Drupal, Wordpress.

The basic idea of all CMS is focused on division of content and design of a site. Usually design of a site changes seldom, at the same time changing of the content may be changed not only every day, but even every hour. That is why CMS use so-called frameworks in its work – special “empty” thunks of pages where site design has already been written. We need just full them with the information. It is enough to use special WYSIWYG editor. This editor is like usual text processing program of desktop application. So it is easy job to explore it. Persistence of large number of ready template give us an opportunity to choose matched design in a matter of minutes. Besides, there is a lot of enhancing in up-to-date CMS. It simplifies writing and forming of pages, for example technique of time delayed Web publishing, graphic composer of forms and pages.

In the process of writing sites, especially dynamic sites, it is impossible to work without database and database management system (hereafter referred to as DBMS). DBMS deals with data aggregation and their storage and treatment. Management of this system is accomplished in languages of work with database, for example SQL. Choosing of DBMS depends on that software applications, which will operate it. Leading suppliers of DBMS are IBM, Oracle, Microsoft. They are characterized by scalability and processing speed and in producing of complex analytic excerpts, work with XML and clustering solution. They are also dated back to so-called “big thiple”. Free of charge DBMS such as MySQL and Postgres are close to these giants and may compete with them. Which of these DBMS to choose is a matter of dispute in “holy war” between design engineers. We will not go into details of these systems, but just mention that it doesn't make any difference to interpreter of PHP which of the system he will use, as common logic of work is permanent. If a computer programmer can work with MySQL, he will learn PostgreeSQL or MS SQL Server relatively easy. Negligeable differentiating will be in naming of functions and special aspects of making a query. But actually in process of making choose in favor of small project, the main factor if free of charge of a system.

Also knowledge of main programming languages is desirable for writing of dynamic sites. It is not easy to create a web-site, as it may seem to a dilettante. We need deep knowledge of technologies, which are commonly used for creation web-sites of elementary and medium levels, to build up an effective source attracting attention of users and answering claims of search systems.

The most actual and popular languages are:

· HTML – is a standard language of document layout in the Internet;

· CSS – is a language of description appearance of a document;

· PHP – is designed for writing of web applications working at a web server;

· JavaScript – is a free of charge language of scripts working on a client side.

This article acquaint us with such notions as static and dynamic web sites and with technologies and program systems, which help us to write and keep operational of dynamic web sources. Besides we mentioned importance of knowledge of main programming languages.

List of references:

1. Leontyev B.V. “Web-design: cobwebs, quirks, secrets” / Publishing house: Solon-Press, 2003. – 170.

2. Leky-Tompson, Ed. “PHP 5 for professionals = Professional PHP 5” / E. Leky-Tompson, A.Kouv, H.Ayde-Goodman – M.: EE “Dialektika”, 2006. – 608.

3. Olifer V.G., Olifer N.A. – “Computing nets. Principles, technologies, traces”. SPB.: Piter, 2010. – 944.

4. R. Nixon "Create dynamic websites using PHP, MySQL, JavaScript and CSS» 2nd ed. SPb .: Peter, 2013. - 560