function getDateOfYear($data)
{
$len = strlen($data);
switch ($len) {
case 5:
if (checkYear($data, $len)) {
$year = '20' . substr($data, 0, 2);
$day = substr($data, 2);
break;
} else {
return false;
}
default:
return 'Unkown Operation!';
}
return getDated($year, $day);
}
<html>
<head>
</head>
<body>
<form method="POST">
<label>
<input type="text" name="data">
<input type="submit" value="Wyslij">
</label>
</form>
</body>
</html>
<?php
if ($_SERVER['REQUEST_METHOD'] == 'POST') {
$date = intval($_POST['data']);
function checkYear($date)
{
if (is_int($date)) {
if ($date % 4 == 0 && $date % 100 !== 0 || $date % 400 == 0) {
return true;
}
}
return false;
}
echo checkYear($date);
}
