Follow along with the video below to see how to install our site as a web app on your home screen.
Anmerkung: This feature currently requires accessing the site using the built-in Safari browser.
if ($jahr % 100 == 0 && $jahr % 400 != 0) {
return false;
} else {
if ($jahr % 4 == 0) {
return true;
} else {
return false;
}
}