1 date_default_timezone_set('PRC'); //默认时区
2 $t = time();
3 $today=date("Y-m-d",time());
4 echo "今天：$today<br />";
5 echo "某一天：".date("Y-m-d",strtotime("18 june 2008"))."<br />";
6 echo "昨天：".date("Y-m-d",strtotime("-1 day"))."<br />";
7 echo "明天：".date("Y-m-d",strtotime("+1 day"))."<br />";
8 echo "一周后：".date("Y-m-d",strtotime("+1 week"))."<br />";
9 echo "一周零两天四小时两秒后：".date("Y-m-d G：H：s",strtotime("+1 week 2 days 4 hours 2 seconds"))."<br />";
10 echo "下个星期四：".date("Y-m-d",strtotime("next Thursday"))."<br />";
11 echo "上个周一：".date("Y-m-d",strtotime("last Monday"))."<br />";
12 echo "一个月前：".date("Y-m-d",strtotime("last month"))."<br />";
13 echo "一个月后：".date("Y-m-d",strtotime("+1 month"))."<br />";
14 echo "十年后：".date("Y-m-d",strtotime("+10 year"))."<br />";
15 echo "<br />=======================================================<br /><br />";
16 $w = date("w",time()); //获取今天是本周周几
17 echo "今天是星期$w<br />";
18 $d=array("日","一","二","三","四","五","六");
19 $whatday="星期".$d[date("w",strtotime($today))]; //获取今天星期几
20 echo "今天是$whatday<br />";
21 $d0 = date("Y-m-d",strtotime("-$w day",$t)); //周开始
22 echo "本周周日是：$d0<br />";
23 $d6 = date("Y-m-d",strtotime((6-$w)." day",$t)); //周结束
24 echo "本周周六是：$d6<br />";
26 echo "本周周日是：".date("Y-m-d",strtotime("Sunday"))."<br />"; //周开始
27 echo "本周周六是：".date("Y-m-d",strtotime("Saturday"))."<br />"; //周结束
28 echo "上周周日是：".date("Y-m-d",strtotime("last Sunday"))."<br />"; //上周开始
29 echo "上周周六是：".date("Y-m-d",strtotime("last Saturday"))."<br />"; //上周结束
30 echo "<br />=======================================================<br /><br />";
31 $time = abs((strtotime("2012-12-21") - strtotime(date("Y-m-d")))/86400);//获取两个日期之间的天数差
32 echo "距离世界末日还有：$time 天<br />"; //上周结束