Untitled

<html>
<body>
<?php
$first = $_POST['first'];
$second = $_POST['second'];
$operation = $_POST['operation'];
include("calcFunctions.php");


    print("<fieldset><h1> We have");

if (!is_numeric($first) or !is_numeric($second))
{
    print("<h2> Error one or more inputs are not numbers</h2>");
    #echo("<a href="calculator.html"></a>");
}

if($first < 0 or $second < 0)
{
    print("<h1> Error one of more of your numbers is a negative</h1>");
    #echo("<a href = "calculator.html"></a>");
}

if (empty($first) or empty($second))
{
    print("<p> One or more input field is empty </p>");
    #echo("<a href="calculator.html"></a>");
}


if($operation == "Addition")
{
    print("<h1>ADDED up your result</h1>");

    $sum = getSum($first, $second);
    echo("$sum");
}
if($operation == "Subtraction")
{
    print("<h1>SUBTRACTED your results</h1>");
    $dif = getDif($first, $second);
    echo("$dif");

}
if($operation == "Multiplication")
{
    print("<h1>MULTIPLIED your results</h1>");
    $product = getProd($first, $second);
    echo("$product");
}
if($operation == "Division")
{
    print("<h1>DIVIDED your result</h1>");
    $div = getDiv($first, $second);
    echo("$div");
}
if($operation == "Min")
{
    print("<h1>Found the MIN of the two numbers</h1>");
    $min = getMin($first, $second);
    echo("$min");
}
if($operation == "Max")
{
    print("<h1>Found the MAX of the two numbers</h1>");
    $max = getMax($first, $second);
    echo("$max");
}
print("</fieldset>");
$logFile = 'calculating.dat';
$logFile = fopen("calculating.dat", "a");
$log = $first.$second.$operation;
fwrite($logFile, $log);
$newLog = $log."\n";
fwrite($logFile, $newLog);
fclose($logFile);

?>