PHP Arithmetic Operators:-
Operator
Name
Example
Result
+
Addition
$x + $y
Sum of $x and $y
-
Subtraction
$x - $y
Difference of $x
and $y
*
Multiplication
$x * $y
Product of $x and
$y
/
Division
$x / $y
...
Sunday, 22 June 2014
PHP Variables
— As
with algebra, PHP variables can be used to hold values (x=5) or expressions
(z=x+y).
— A
variable can have a short name (like x and y) or a more descriptive name
(age, car_name, total, volume).
— Rules
for PHP variables:
— A
variable starts with the $ sign,...
PHP echo
— echo is a language construct, and can be used with or without parentheses: echo or echo().
— There are some differences between echo and print:
...
Introduction to PHP
PHP (Hypertext Preprocessor):
— PHP is a server scripting language, and is a powerful tool for making dynamic and interactive Web pages quickly.
— PHP code are executed on the server, and the result is returned to the browser as plain HTML
— PHP files have extension ".php"
PHP...
JavaScript Popup Boxes
JavaScript has three kind of popup boxes:
— Alert box
— Confirm box
— Prompt box.
Alert Box:
— An alert box is often used if you want to make sure information comes through to the user.
— When an alert box pops up, the user will have to click "OK" to proceed.
Syntax:-
...
Javascript getElementById Method
— The most common way to access an HTML element is to use the id of the element.
— The “innerHTML” property is useful for getting or replacing the content of HTML elements.
Example:-
<html>
<body>
<p id="demo"></p>
<script>
document.getElementById("demo").innerHTML...
DOM (Document Object Model)
DOM(Document Object Model)
— When a web page is loaded, the browser creates a Document Object Model of the page.
— The
HTML DOM is a standard object model and programming
interface for...
Introduction to Javascript
— JavaScript is the most popular programming language in the world.
— It is the language for HTML, for the Web, for computers, servers, laptops, tablets, smart phones, and more.
JavaScript is:
— JavaScript is a lightweight, interpreted programming language
— Designed for...
Tuesday, 10 June 2014
Audio Tag, Video Tag, Label Tag, Span Tag
Audio tag:-
— HTML5 defines a new element which specifies a standard way to embed an audio file on a web page: the <audio> element.
— Before HTML5, there was no standard for playing audio files on a web page.
BROWSER SUPPORT:-
— Internet Explorer 9+, Firefox, Opera, Chrome,...
HTML DIV Tag
The HTML <div> tag is used for defining a section of your document. With the div tag, you can group large sections of HTML elements together and format them with CSS. The difference between the div tag and the span tag is that the div tag is used with block-level elements whilst the span tag is...