【php】php中日期和时间处理

时间:2022-09-22 15:41:52
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