rendered paste body<?php
if (($_POST[val1] == "") || ($_POST[val2] == "") || ($_POST[calc] =="")) {
header("Location: calculate_form.html");
exit;
}
if ($_POST[calc] == "add") {
$result = $_POST[val1] + $_POST[val2];
} else if ($_POST[calc] == "subtract") {
$result = $_POST[val1] - $_POST[val2];
} else if ($_POST[calc] == "multiply") {
$result = $_POST[val1] * $_POST[val2];
} else if ($_POST[calc] == "divide") {
$result = $_POST[val1] / $_POST[val2];
}
echo "<title>Calculation Result</title>";
echo "<p>The result of the calculation is: $result</p>";
echo "<p><a href=\"calculate_form.html\" target=\"_self\">Do Another</a></p>";
?>