<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>
<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>
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>
#!/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>
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