<select><option value="" id="option"></option></select> <script language="javascript"> var option = document.getElementById("option"); var date = new Date(); var y, m, d, h, i, s;y = date.getYear(); m = date.getMonth(); d = date.getDate();h = date.getHours(); i = date.getMinutes(); s = date.getSeconds();var s = y + "/" + m + "/" + (d - 1) + " " + h + ":" + i + ":" + s;option.innerHTML = s; </script>
<script language="javascript">
var option = document.getElementById("option");
var date = new Date();
var y, m, d, h, i, s;y = date.getYear();
m = date.getMonth();
d = date.getDate();h = date.getHours();
i = date.getMinutes();
s = date.getSeconds();var s = y + "/" + m + "/" + (d - 1) + " " + h + ":" + i + ":" + s;option.innerHTML = s;
</script>
$yesterday = date('yyyy-mm-dd', time()-86400);
?><select><option value="<?php echo $yesterday; ?>">昨天</option></select>