Untitled

<!DOCTYPE html>
<html>
<head>
	<title>Controllo data</title>
	<style type="text/css">
		p{
			text-align: center;
			color: green;
			font-size: 150px;
		}
	</style>
</head>
<body>
<?php
	$g=$_GET['giorno'];
	$m=$_GET['mese'];
	$a=$_GET['anno'];
	if(checkdate($m,$g,$a)){
		echo "<p>Data corretta</p>";
	}else{
		echo "<p style=\"color: red;\">Data NON corretta</p>";
	}

?>
</body>
</html>