时间计算相关方法
PHP 简单的日期加减计算
<?php date_default_timezone_set('PRC'); //默认时区 echo "今天:",date("Y-m-d",time()),"\n"; echo "今天:",date("Y-m-d",strtotime("18 june 2008")),"\n"; echo "昨天:",date("Y-m-d",strtotime("-1 day")),"\n"; echo "明天:",date("Y-m-d",strtotime("+1 day")),"\n"; echo "一周后:",date("Y-m-d",strtotime("+1 week")),"\n"; 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")), "\n"; echo "下个星期四:",date("Y-m-d",strtotime("next Thursday")),"\n"; echo "上个周一:".date("Y-m-d",strtotime("last Monday"))."\n"; echo "一个月前:".date("Y-m-d",strtotime("last month"))."\n"; echo "一个月后:".date("Y-m-d",strtotime("+1 month"))."\n"; echo "十年后:".date("Y-m-d",strtotime("+10 year"))."\n"; ?>
运行结果:
今天:2017-11-06 今天:2008-06-18 昨天:2017-11-05 明天:2017-11-07 一周后:2017-11-13 一周零两天四小时两秒后:2017-11-15 22:22:42 下个星期四:2017-11-09 上个周一:2017-10-30 一个月前:2017-10-06 一个月后:2017-12-06 十年后:2027-11-06
PHP 进阶的日期加减计算
<?php // 默认时区 date_default_timezone_set('PRC'); echo "今天: ", date('Y-m-d H:i:s'), "\n"; // 输出当前时间 echo "明天: ", date('Y-m-d H:i:s', strtotime('+1 day')), "\n"; // 输出明天时间 //strtotime 可以接受第二个参数,类型timestamp为指定日期 echo date('Y-m-d H:i:s', strtotime ("+1 day", strtotime('2017-11-11'))), "\n"; // 这里+1 day 可以修改参数1为任何想需要的数 // day也可以改成year(年)month(月)hour(小时)minute(分)second(秒) echo date('Y-m-d H:i:s', strtotime("+1 day +1 hour +1 minute")), "\n"; ?>
运行结果:
今天: 2017-11-06 18:58:04 明天: 2017-11-07 18:58:04 2017-11-12 00:00:00 2017-11-07 19:59:04
PHP 高级的计算日期时间差
echo date("Y-m-d H:i:s"), "\n"; // 日期天数相加函数 echo date('Y-m-d', strtotime('+1 day', strtotime('2016-09-12'))), "\n\n"; echo strtotime('2016-09-12'), "\n"; echo date("Y-m-d", '1473609600'), "\n"; echo date("Y-m-d", '1573609600'), "\n"; // 日期天数相加函数 $d = "2016-09-12 10:12:20"; echo date("Y-m-d", strtotime("$d +1 day")), "\n\n"; // 把日期转换成时间截 function date2time($d){ $year=((int)substr("$d",0,4)); //取得年份 $month=((int)substr("$d",5,2)); //取得月份 $day=((int)substr("$d",8,2)); //取得几号 return mktime(0,0,0,$month,$day,$year); } echo date2time("2016-09-12"), "\n\n"; $date_1="2066-09-12"; $date_2="2016-09-12"; $Date_List_a1=explode("-",$date_1); $Date_List_a2=explode("-",$date_2); $d1=mktime(0,0,0,$Date_List_a1[1],$Date_List_a1[2],$Date_List_a1[0]); $d2=mktime(0,0,0,$Date_List_a2[1],$Date_List_a2[2],$Date_List_a2[0]); $Days=round(($d1-$d2)/3600/24); echo "$date_2 -> $date_1 相差: $Days 天", "\n";
运行结果:
2017-11-06 19:13:02 2016-09-13 1473609600 2016-09-12 2019-11-13 2016-09-13 1473609600 2066-09-12 -> 2016-09-12 相差: 18262 天
PHP 高级的计算日期时间
$aaa = "18:00"; $bbb = 20; $ddd = date("H:i",strtotime("$aaa + $bbb minute"));
echo $ddd;
运行结果: 18:20
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版权声明:本文为CSDN博主「阳光岛主」的原创文章,遵循CC 4.0 BY-SA版权协议,转载请附上原文出处链接及本声明。原文链接:https://blog.csdn.net/ithomer/java/article/details/79399146