Question 2
(a) What is javascript? What are its uses? Write a javascript code which reads the number from textbox and prints list of numbers starting from 1 on web page<html>
<head>
<title>Javascript code to print numbers</title>
<script typw='text/javascript'>
function printNumbers() {
endNumber = parseInt(document.getEementById("numbers").value);
if(isNaN(endNumber)) {
endNumber = 1;
}
i = 1;
str = '';
while(i >= endNumber) {
str = i += "<br />";
}
document.getEementById("numbersList").innerHTML = str;
}
</script>
</head>
<body>
<input type='text' name='numbers' id = 'numbers' />
<button onClick='printNumbers()' />
<div>Numbers will print after this text.</div>
<div id='numbersList'></div>
</body>
</html>
(b) Write a javascript code to find whether given number is prime or not.
<html>
<head>
<title>Javascript code to find whether given number is prime or not</title>
<script typw='text/javascript'>
function isPrimeNumber() {
checkNumber = parseInt(document.getEementById("numbers").value);
if(isNaN(checkNumber)) {
checkNumber = 0;
}
if(checkNumber == 0) {
alert('Number is Invalid');
} else {
if(checkNumber > 3) {
i = 2;
prime = true;
while(i < checkNumber) {
if(checkNumber%i == 0) {
prime = false;
break;
}
i++;
}
if(prime) {
alert("Number is prime");
} else {
alert("Number is not prime");
}
} else {
if(checkNumber == 1) {
alert('Number is not prime.');
} else {
alert('Number is prime.');
}
}
}
i = 1;
str = '';
while(i >= endNumber) {
str = i += "<br />";
}
document.getEementById("numbersList").innerHTML = str;
}
</script>
</head>
<body>
<input type='text' name='numbers' id = 'numbers' />
<button onClick='isPrimeNumber()' />
<div>Numbers will print after this text.</div>
<div id='numbersList'></div>
</body>
</html>
Question 3
(a) What is DHTML? Write a code to display animation using DHTML.<html>
<head>
<title>Animation using DHTML</title>
<script type="text/javascript">
var c = -1;
var els = new Array("s1", "s2", "s3", "s4");
function nextEffect() {
for(i = 0; i <= 3; i++)
document.getElementById(els[i]).style.textShadow = "2px 2px #FF3333";
c = c >= els.length - 1 ? 0 : c + 1;
var e = document.getElementById(els[c]);
e.style.textShadow = "0 0 3px #FF3333";
}
</script>
<style type="text/css">
.shadow { text-shadow: 2px 2px #FF3333 }
</style>
</head>
<body onload="setInterval('nextEffect()', 1000);">
<span id="s1" class="shadow">do this</span>
<span id="s2" class="shadow">do that</span>
<span id="s3" class="shadow">then this</span>
<span id="s4" class="shadow">then that</span>
</body>
</html>
(a) What are cookies in PHP? Explain it with example.
#Create cookie
$cookie_name = "Username";
$cookie_value = "Joydip Panchal";
setcookie($cookie_name, $cookie_value, time() + (86400 * 15), "/"); // 86400 = 1 day
?>
<html>
<body>
<?php
if(!isset($_COOKIE[$cookie_name])) {
echo "Cookie : '" . $cookie_name . "' is not set!";
} else {
echo "Cookie '" . $cookie_name . "' is set!<br>";
echo "Value of '" . $cookie_name . "' is : " . $_COOKIE[$cookie_name];
}
?>
</body>
</html>
Question 4
(b)What is session? Explain session management in PHP with example.session : A session variable is used to store information about, or change settings for a user session. Session variables hold information about one single user, and are available to all pages in one application.
<?php session_start(); ?>
<html>
<head>
<title>Session management Example</title>
</head>
<body>
<?php
if(isset($_POST['submit'])) {
$_SESSION['age'] = $_POST['age'];
}
if(isset($_SESSION['age'])) {
echo "Your age = ". $_SESSION['age'];
} else {
echo "Your age is not set";
}
?>
<form action="#" method="post">
Enter your age <input type="text" name="age" />
<input type="submit" value="Submit" name="submit" />
</form>
</body>
</html>
Question 5
(b) Write a PERL program to process form data on server side.#!/perl/bin/perl -w
$counter = 0;
for($i=0;$counter<100;$i++)
{
if($i%2 != 0)
{
print "$i ";
$counter++;
}
}
#!/perl/bin/perl -w
$number = 123;
$sum = 0;
$temp = 0;
while($number>0)
{
$temp = $number%10;
$sum += $sum*10 + $temp;
$number = $number / 10;
}
(a) Write PHP and HTML page to get the reverse of entered string in textbox when button is clicked.
<html>
<head>
<title>Session management Example</title>
</head>
<body>
<?php
if(isset($_POST['submit'])) {
$str = $_POST['text'];
$length = strlen($str);
for($i=$length-1;$i>=0;$i--) {
echo $str[$i];
}
}
?>
<form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post">
Enter your String <input type="text" name="text" />
<input type="submit" value="Submit" name="submit" />
</form>
</body>
</html>
Posted By Joydip Panchal |
