function isEven($getal1)
{
    $getal1 % 2 == 0 ? $bool = true : ($bool = false);
    return $bool;
}
//*********************************** DEEL 2 *******************************
?>

<!DOCTYPE html>
<html>
<head></head>
<body>

	<h1>DEEL 1</h1>
	
	<p><?php 
echo berekenSom(4, 7);
?>
</p>
	<p><?php 
echo berekenProduct(4, 7);
?>
</p>
	<p><?php 
echo isEven(4);
?>
</p>


</body>
</html>
$testGetal1 = 5;
$testGetal2 = 10;
$testString = 'alsdkfj';
function berekenSom($getal1, $getal2)
{
    $som = $getal1 + $getal2;
    return $som;
}
$berekenSomResult = berekenSom($testGetal1, $testGetal2);
function berekenProduct($getal1, $getal2)
{
    $product = $getal1 * $getal2;
    return $product;
}
$berekenProductResult = berekenProduct($testGetal1, $testGetal2);
function isEven($getal)
{
    if ($getal % 2 === 0) {
        $result = TRUE;
    } else {
        $result = FALSE;
        $result = (int) $result;
    }
    return $result;
}
$isEvenResult = isEven($testGetal1);
function stringToUpperLength($string)
{
    $stringToUpper = strtoupper($string);
    $stringLength = strlen($string);