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<?php session_start(); ?>
<font color = blue size = 4>
<?php
$op = $_POST['op'];
$num1 = $_SESSION['v1'];
$num2 = $_SESSION['v2'];
print "The num1 is $num1<br>";
print "The num2 is $num2<br>";
if($op == "add")
{
$ans = $num1 + $num2;
print "$num1 + $num2 = $ans";
}
else if($op == "sub")
{
$ans = $num1 - $num2;
print "$num1 - $num2 = $ans";
}
else if($op == "mul")
{
$ans = $num1 * $num2;
print "$num1 * $num2 = $ans";
}
else if($op == "div")
{
$ans = $num1 / $num2;
print "$num1 / $num2 = $ans";
}
?>
</font>