如何获取2014-11-12三天前的日期

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Release: 2016-06-13 12:13:42
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怎么获取2014-11-12三天前的日期
$time='2014-11-12';

怎么echo到2014-11-09
------解决思路----------------------

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