tw/pg8b.php at master · groot14/tw · GitHub

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<!DOCTYPE html>
<html>
<head>
	<style type="text/css">
		table,td,th{
			border: 1px solid black;
			width: 35%;
			text-align: center;
			background-color: DarkGray;
		}

		table{
			margin: auto;
		}
		input,p{
			text-align: right;
		}

	</style>
</head>
<body>
	<form method="post">
		<table>
			<caption><h2>SIMPLE CALCULATOR</h2></caption><tr><td>FIRST NUMBER:</td><td>
				<input type="text" name="num1"></td>
			<td rowspan="2"><input type="submit" name="submit" value="calculate"></td>
			</tr>
			<tr><td>Second Number:</td><td><input type="text" name="num2"></td></tr>
	<!-- 	</table>
		 -->
	</form>
	<?php
		if(isset($_POST['submit']))
		{
			$num1 = $_POST['num1'];
			$num2 = $_POST['num2'];
			if(is_numeric($num1) and is_numeric($num1)){
				echo "<tr><td>Addition:</td><td><p>".($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 type='text/javascript'> alert('Enter valid number');</script>";

			}
		}
		?>

</body>
</html>