-
Notifications
You must be signed in to change notification settings - Fork 8
/
Copy pathPROG8A.php
47 lines (45 loc) · 1.21 KB
/
PROG8A.php
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
<html>
<head>
<style>
table, td, th {
border: 1px solid black;
width: 35%;
text-align: center;
background-color: lightgray;
}
table { margin: auto; }
input,p { text-align:right; }
</style>
</head>
<body>
<form method="post" action="prog8a.php">
<table>
<caption><h2> SIMPLE CALCULATOR </h2></caption>
<tr>
<td>First Number:</td><td><input type="text" name="num1" /></td>
<td rowspan="2"><button type="submit" name="submit" value="calculate">Calculate</td></tr>
<tr>
<td>Second Number:</td><td><input type="text" name="num2"/></td>
</tr>
</form>
<?php
if(isset($_POST['submit'])) // it checks if the input submit is filled
{
$num1 = $_POST['num1'];
$num2 = $_POST['num2'];
if(is_numeric($num1) and is_numeric($num2) )
{
echo "<tr><td> Addition :</td><td><p>".($num1+$num2)."</p></td>";
echo "<tr><td> Subtraction :</td><td><p> ".($num1-$num2)."</p></td>";
echo "<tr><td> Multiplication :</td><td><p>".($num1*$num2)."</p></td>";
echo "<tr><td>Division :</td><td><p> ".($num1/$num2)."</p></td>";
echo "</table>";
}
else
{
echo"<script> alert(' ENTER VALID NUMBER');</script>";
}
}
?>
</body>
</html>