??      time005.php     
<html>
<head>
<title>9??????</title>
</head>

<body>
<h1>9.1???????????time()</h1>
<h3>time005.php???????</h3>
<?php
$a = 2000;//???????
$b = 12;//???????
$c = 24;//???????
echo $a . "?" . $b . "?" . $c . "??????????<be />";
echo mktime(0,0,0,$b,$c,$a);
$d = mktime(0,0,0,$b,$c,$a);
echo "<br />???????????";
echo date('?? y ? M ? d ? D',$d);
?>
??????
</body>
</html>