<?php
$number = $_GET['number'];
$multiply = $_GET['multiply'];
$process = $_GET['process'];
//$output = $number $process $multiply;
if ($process == '%2B')
{
$output = $number + $multiply;
}
if ($process == '%2F')
{
$output = $number / $multiply;
}
//
if ($process == '*')
{
$output = $number * $multiply;
}
if ($process == '-')
{
$output = $number - $multiply;
}


echo $output;
?>



GIVES ERROR OF
[Thu May 11 20:54:21 2006] [error] [client 10.0.0.2] PHP Notice:  Undefined variable: output in C:\\Program Files\\Apache Group\\Apache2\\htdocs\\MRBS\\test\\math.php on line 25, referer: http://10.0.0.2/mrbs/test/math.html