11. Write a PHP program to create a form that contains two textboxes that accept numbers and a submit button. When submit button is clicked, the sum of two numbers will be displayed.
<!doctype html>
<html>
<head>
<title>Year : 2018 | Q : 11</title>
</head>
<body>
<?php
if(isset($_POST['add']))
{
$n1 = $_POST['n1'];
$n2 = $_POST['n2'];
if(is_numeric($n1)&&is_numeric($n2))
die("Sum is: ".($n1+$n2));
else
echo "Please enter numbers";
}
?>
<form method = 'post'>
Number: <input type = 'text' name = 'n1'><br>
Number: <input type = 'text' name = 'n2'><br>
<input type = 'submit' value = 'Add' name = 'add'>
</form>
</body>
</html>
12. Write a PHP program to print the following List in an array and display them as follows:
a. Bachelor in Information Management
b. Bachelor in Business Administration
c. Bachelor in Business Studies
<!doctype html>
<html>
<head>
<title>Year : 2018 | Q : 12</title>
</head>
<body>
<?php
$arr = array('Bachelor in Information Management','Bachelor in Business Administration','Bachelor in Business Studies');
echo "<ol type = 'a'>";
foreach($arr as $data)
echo "<li>".$data."</li>";
echo "</ol>";
?>
</body>
</html>
13. Write a PHP program to find the difference between two dates.
<html>
<head>
<title>Year : 2018 | Q : 13</title>
</head>
<body>
<form method = 'post'>
Date 1 : <input type = 'text' name = 'd1' required><br>
Date 2 : <input type = 'text' name = 'd2' required><br>
<input type = 'submit' value = 'Calculate difference' name = 'diff'>
</form>
<?php
if(isset($_POST['diff']))
{
$d1 = strtotime($_POST['d1']);
$d2 = strtotime($_POST['d2']);
$diff = abs($d1-$d2);
echo "The difference between the given dates is of about ".floor($diff/(60*60*24))." days.";
}
?>
</body>
</html>
14. Write a PHP program to read name and address from a database, and display them.
<html>
<head>
<title>Year : 2018 | Q : 14</title>
</head>
<body>
<?php
/*
Database name: 'test'
Table name: 'temp'
Column names: 'name', 'address'
*/
$C = mysqli_connect('localhost','root','','test') or die("Error connecting with the database");
$code = "SELECT name, address FROM temp";
$R = mysqli_query($C,$code) or die("Error in code");
echo "<table border = '1' cellspacing= '0' cellspacing = '15'>";
echo "<tr> <th>Name</th> <th>Address</th> </tr>";
while($res = mysqli_fetch_array($R))
echo "<tr align = 'center'> <td>".$res[0]."</td> <td>".$res[1]."</td> </tr>";
echo "</table>";
?>
</body>
</html>
15. Write a PHP program to copy content of one text file to another.
<html>
<head>
<title>Year : 2018 | Q : 15</title>
</head>
<body>
<?php
//Copying contents of 'txt1.txt' to 'txt2.txt'.
//copy function: copy('txt1.txt','txt2.txt');
$f1 = fopen('txt1.txt','r');
$f2 = fopen('txt2.txt','w');
while(!feof($f1))
{
if(!fwrite($f2,fgets($f1)))
die("Error copying");
}
echo "Copied";
fclose($f1);
fclose($f2);
?>
</body>
</html>