ob_end_clean();
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Opdracht 3c</title>
</head>
<body>
<?php
//let op! Gebruik van short tags kan mogelijk niet werken in oude php versies!
if (isset($_POST['pyramidLength'])) {
$pyramidLength = $_POST['pyramidLength'];
if (is_numeric($pyramidLength) && $pyramidLength <= 9 && $pyramidLength >= 1) {
echo pyramideNummerDing($pyramidLength);
} else {
echo 'Pyramide lengte veld is niet numeriek of valt buiten de range.';
}
} else {
?>
<form action="opdracht3c.php" method="POST">
<label for="pyramidLength">Pyramide lengte: </label>
<select name="pyramidLength" id="pyramidLength">
<?php
for ($i = 1; $i <= 9; $i++) {
?>
<option value="<?php
echo $i;
?>
"><?php
<?php
function pyramideNummerDing($length = 9)
{
$result = "";
for ($i = 1; $i <= $length; $i++) {
for ($n = $i; $n <= $length; $n++) {
$result .= $i;
}
$result .= "<br/>";
}
return $result;
}
echo pyramideNummerDing(4);