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<?php
//File: session3.php
session_start();
?>
<body>
<FONT color=blue size=4>
<center>
<h2>
General Calculator
</h2>
<hr>
<?php
$op = $_POST['operator'];
$n1 = $_SESSION['num1'];
$n2 = $_SESSION['num2'];
//debug
print "the operation is as follows: <p>";
if($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 "the operator is: $n1 $operator $n2 = $ans <p>";
?>
<a href = session1.htm> back </a>