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<?php
session_start();
?>
<!--
Name: Lee Cebula
Date: 3/23/09
Instructor: Dr. Wang
Title: session3.php
Goal: action code for session2.php, do algebra
-->
<HTML>
<HEAD>
<TITLE>
Session3.php
</TITLE>
</HEAD>
<BODY BGCOLOR=blue>
<FONT COLOR=white SIZE=4>
<CENTER>
<H1>
Session3.php
</H1>
<HR>
<BR>
<?php
$op = $_POST["operator"];
$n1 = $_SESSION["num1"];
$n2 = $_SESSION["num2"];
print "The calculation is as follows<P>";
if($op == 'add')
{
$operator = '+';
$ans = $n1 + $n2;
}
else if($op == 'sub')
{
$operator = '-';
$ans = $n1 - $n2;
}
else if($op == 'mul')
{
$operator = '*';
$ans = $n1 * $n2;
}
else if($op == 'div')
{
$operator = '/';
$ans = $n1 / $n2;
}
print "$n1 $operator $n2 = $ans <P>";
?>
</CENTER>
</FONT>
</BODY>
</HTML>