$time='2014-11-12';
怎么echo到2014-11-09
------解决思路----------------------
<?php
$time='2014-11-12';
echo date('Y-m-d',strtotime("$time-3 days"));
?>
------解决思路----------------------
$conn=mysqli_connect('localhost','root','root');
$res=mysqli_query($conn,"SELECT ADDDATE('2014-11-12',INTERVAL -3 DAY)");
$row=mysqli_fetch_array($res);
echo $row[0];
2014-11-09
