Web designing using CSS

CSS stands for Cascading Style Sheets which helps to specify the format for a markup document. CSS was developed in 1996 by ‘Bert Bos’ and ‘Hakon Wium lie’.

CSS is mainly used to design web pages which are build using html or xhtml. CSS file can be written either inside HTML or externally in .css file.

 

What is the use of CSSWeb-Design-Software-2

Web browser easily reads html or xhtml. There are multiple tags which are repeatedly written along with content to develop a web page. To display the content in customized style we need to format these HTML elements. So, there is a need of style sheet that can format the HTML document. We can give each element a different id or class and then can style that tag accordingly.

 

Things to learn before you start learning CSS

You must learn HTML before you start learning CSS. Knowledge of basic HTML would be good enough to help you get started with CSS.

CSS helps to customize the style of HTML element. You can store style-sheets in external file and link it from HTML page.

 

How to start learning CSS

Learning CSS is very easy if you start with systematic way. Make sure you follow the following steps to learn web designing using CSS.

  1. Learn about CSS box model. You will get to know that around each HTML element there is a rectangular area which is referred as box model.
  2. Next you should learn to add border, margin and padding to your html element.
  3. Learn about Inline and Block elements in CSS. HTML element can be either inline or block. Both types of elements have their own property. So they behave differently.
  4. Then you can proceed to style your fonts and images.
  5. After that learn about designing two column layouts followed by three column layouts.

From where to learn designing using CSS

KB4DEV is a platform where you can read and edit notes written by different users. They have comprehensive CSS tutorial series which covers basic Cascading style sheet tutorial as well as advance designing tutorials like building two columns and three columns layouts using CSS and HTML.

PHP Web Application Development

PHP is one of the most widely used server side language. PHP stands for hypertext preprocessor and it is used to develop web applications. Around 250 million websites uses PHP as a scripting language. It was developed by Rasmus Lerdorf in year 1995.

PHP can be deployed on almost every server and it is highly portable. You can mix the PHP code with plain HTML. Currently PHP supports object oriented features and it is very simple server side language to learn. PHP source code gets executed by PHP engines.

PHP has a strong community over web and new developers can get their queries solved by posting on forums.

Programming Languages to learn before you start PHPstart learning php development

Follow the following steps to learn php if you are a beginner –

  1. Learn HTML basics
    You must know to use basic tags in HTML. Also make sure you learn about div, tables, images and adding links with the help of HTML tags.
  2. CSS
    If you want to build beautiful web page you need to learn CSS. CSS stands for cascading style sheet. So, for your data to appear in presentable way you must learn CSS.
  3. JAVASCRIPT

Javascript makes lots of work easier. You must use it in a situation where you don’t want to do computation with the help of server. For example: when you want to validate form data at client side. Javascript is a client side language and is very efficient if used properly with PHP.

How to start learning PHP

Follow the steps given below to start learning PHP in efficient manner-

  1. Start with a basic Hello World program. Run it yourself and try to learn basic tags in PHP.
  2. Learn to add HTML with PHP. This will give you more power to present your data.
  3. Then, start with basic data types in PHP. Learn to use integer, strings, float in PHP.
  4. Learn to use Arrays. PHP provides many inbuilt array functions which simplifies programming.
  5. Learn to create user defined functions. Divide your program into modules. For example: you must keep code of sidebar and headers in separate modules.
  6. Learn to connect PHP with database. You must know basic SQL queries. You can connect PHP with MYSQL database.
  7. Learn to use Sessions and Cookies with PHP. Session variable is stored on server while cookies are stored on client side.
  8. Next, learn basic OOPS concept in PHP. Try to make new classes and objects with PHP. If you wish to develop big web application then you must use principles of OOPS to enhance code reusability and to avoid duplicacy of code.
  9. In order to read data from other website you can learn cURL. cURL provides library for transferring data using various protocols.
  10. Learn to create web services using php. This can be used to provide data to other platforms like mobile.

Step By Step PHP tutorials

You can start learning PHP from kb4dev PHP tutorials. This website presents comprehensive PHP notes to get started for beginners as well as for intermediates PHP professionals. Write from the basics of PHP advance concepts like cookies, sessions, CURL are covered in detail.

The idea behind kb4dev is that each user can edit the PHP notes provided at the website. So that tutorials will remain updated and authentic forever.

FIVE Best programming languages that are in demand

Java

Java is one of the widely accepted object oriented programming language. It was designed by  James Gosling and Sun Microsystem in year 1995.

One of the main advantages of java is that once you write any program you can run it anywhere. Reason being java is platform independent and it runs on JVM (java virtual machine). On compiling, program gets converted into byte code. That byte code runs on java virtual machine. So, a program which is written on Linux can be executed on windows as well.

Step By Step Java tutorials   Java Tutorial

You can start learning java from kb4dev tutorials. This website presents comprehensive java notes to get started for beginners as well as for intermediates java professionals. You can also learn J2EE technologies without any cost.

The idea behind kb4dev is that each user can edit the notes provided at the website. So that tutorials will remain updated and authentic forever.

 

PHP

PHP stands for hypertext preprocessor which is a scripting language and used to develop web applications. PHP was developed in 1995 by Rasmus Lerdorf.Php tutorial

PHP can be deployed on almost every server and it is highly portable. You can mix the PHP code with simple HTML. Currently PHP supports object oriented features and it is very server side language to learn. PHP source code gets executed by PHP engines.

PHP has a strong community over web and new developers can get their queries solved by posting on forums.

Step By Step PHP tutorials

You can start learning PHP from kb4dev tutorials. This website presents comprehensive PHP notes to get started for beginners as well as for intermediates PHP professionals. Write from the basics of PHP advance concepts like cookies, sessions, CURL are covered in detail.

The idea behind kb4dev is that each user can edit the PHP notes provided at the website. So that tutorials will remain updated and authentic forever.

 

C

C programming is the best language for beginners to learn. It was developed by Dennis Ritchie in 1972. C is a procedural language and its code can be compiled on various platforms by doing some modifications. Before learning languages like C++ and Java, it is advised to learn C as it provides a strong foundation to other programming languages.

Step By Step C tutorials

You can start learning C from kb4dev tutorials. This website presents comprehensive C notes to get started for beginners. The idea behind kb4dev is that each user can edit C notes provided at the website. So that C programming tutorials will remain updated and authentic.

 

C#

C# was developed for c and c++ programmers to take advantage of Microsoft framework. Being object oriented language it also attracted JAVA developers to shift to DOT NET framework. It was released in year 2000 by Microsoft.

It is pronounced as C-sharp and it is general purpose language to develop software for windows and Microsoft platform.

Step By Step C# tutorials

You can start learning C# from kb4dev tutorials. This website provides comprehensive C# notes. The idea behind kb4dev is that each user can edit C# notes provided at the website. So that C# programming tutorials will remain updated and authentic.

 

SQL

SQL stands for structure query language. It is a general purpose language which is used to fetch data from relational database. SQL was released in 1974 and its syntax is similar to English language.

Step By Step SQL tutorials

You can start learning SQL from kb4dev tutorials. This website provides comprehensive SQL notes. The idea behind kb4dev is that each user can edit SQL notes provided at the website. So that SQL tutorials will remain updated and authentic.

Atan2 () PHP Function

Definition: We can use the Atan () function to figure out the arc tangent of a number. We can also use the Atan2 () function to figure out the arc tangent of a point given two coordinates. It is written as atan(Y,X) and calculates the arc tangent of Y/X. The result will always be between -PI and PI radians.
Also Known As: Arc Tangent, Arctangent
Examples:
 <?php
 echo(atan2(5,5) . "<br />");
 echo(atan2(-3,4))
 ?>

This will return:
0.78539816339745
-0.64350110879328