Monday, November 26, 2012

Advanced Tables

Okay till now, you must be confident with creating tables and its tags. You have already done or used tags like table, tr, td, th and even rowspan and colspan. So now I am moving on to the advance tutorial of the table tags.

Those are as below:
colgroup and col
summary and caption
headers, footers and scrolling table

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Download Wamp

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Quotations

Quotations

blockquote, q and cite are used for quotations. blockquote is block-line and used for large citations, whereas q is in-line and used for smaller phrases. cite is also in-line and preferable to q for its semantic nature and possible future deprecation of q.

Again, the title attribute can be used to show where the citation has come from.

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Abbreviations and acronyms

abbr and acronym are used for abbreviations and acronyms respectively.

An abbreviation is a shortened form of a phrase. Very general. An acronym however is an abbreviation made up of the initial letters (or parts of words) of the phrase it is representing. So CSS is a valid acronym, whereas HTML and XHTML are not (if 'Hypertext markup language' was an acronym, it would be 'HML'. Similarly, XHTML would be EHML).

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Definition Lists

Definition Lists

The dl element gets the ball rolling, similar to the ul and ol elements, establishing the list. Rather than there being an li element though, definition lists have a dt element, which is the definition term, followed by a dd element which is a definition description associated to the dt element.

There doesn't have to be one dt followed by one dd, there can be any number of either. For example, if there are a number of words that have the same meaning, there might be a number of dt's followed by one dd. If you have one word that means various different things, there might be one dt followed by several dd's.

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Javascript events

Javascript events

Javascript is all about cool stuffs displayed in the website. So here we will learn how these cool stuffs happens in the website. This all are the ability of Javascript which increase the user interaction and flash like features.

The building blocks of an interactive web page is the JavaScript event system. An event in JavaScript is something that happens with or on the webpage. A few example of events:
  1.     A mouse click
  2.     The webpage loading
  3.     Mousing over a hot spot on the webpage, also known as hovering
  4.     Selecting an input box in an HTML form
  5.     A keystroke

For example:
<html>
<head>
<script type="text/javascript">
<!--
function popup() {
    alert("Wow!! I feel good.")
}
//-->
</script>
</head>
<body>

<input type="button" value="Click Me!" onclick="popup()"><br />
<a href="#" onmouseover="" onMouseout="popup()">
Hover Me!</a>

</body>
</html>

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Javascript Array

Javascript Array

An array is a variable that can store many variables within it. Many programmers have seen arrays in other languages, and they aren't that different in JavaScript.

Creating a JavaScript Array

Creating an array is slightly different from creating a normal variable. Because JavaScript has variables and properties associated with arrays, you have to use a special function to create a new array. This example shows how you would create a simple array, store values to it, and access these values.
JavaScript Code:

<script type="text/javascript">
<!--
var myArray = new Array();

myArray[0] = "Football";
myArray[1] = "Baseball";
myArray[2] = "Cricket";

document.write(myArray[0] + myArray[1] + myArray[2]);
//-->
</script>

Output:
FootballBaseballCricket

JavaScript Array Sorting

Imagine that you wanted to sort an array alphabetically before you wrote the array to the browser. Well, this code has already been written and can be accessed by using the Array's sort method.
JavaScript Code:

<script type="text/javascript">
<!--
var myArray2= new Array();

myArray2[0] = "Football";
myArray2[1] = "Baseball";
myArray2[2] = "Cricket";

myArray2.sort();

document.write(myArray2[0] + myArray2[1] + myArray2[2]);
//-->
</script>

Display:
BaseballCricketFootball
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Constructors and Destructors

Constructor

PHP 5 allows developers to declare constructor methods for classes. Classes which have a constructor method call this method on each newly-created object, so it is suitable for any initialization that the object may need before it is used.

Syntax:
void __construct ([ mixed $args [, $... ]] )

For example:

<?php
class constExample{
    function __construct()
    {
        echo "This will execute without calling a method";
    }

   
}

$obj = new constExample();

?>

Destructors

PHP 5 introduces a destructor concept similar to that of other object-oriented languages, such as C++. The destructor method will be called as soon as there are no other references to a particular object, or in any order during the shutdown sequence.

Syntax:
void __destruct ( void )

For example:
<?php
class MyDestructableClass {
   function __construct() {
       print "In constructor\n";
       $this->name = "MyDestructableClass";
   }

   function __destruct() {
       print "Destroying " . $this->name . "\n";
   }
}

$obj = new MyDestructableClass();
?>
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