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PHP 获取当前天的开始时间、结束时间:
PHP mktime()函数,返回一个指定日期的Unix时间戳。
$t = time();
$start_time = mktime(0,0,0,date("m",$t),date("d",$t),date("Y",$t)); //当天开始时间
$end_time = mktime(23,59,59,date("m",$t),date("d",$t),date("Y",$t)); //当天结束时间
获取当前月的开始时间、结束时间:
$date = date("Y-m-d");
$firstday = date('Y-m-01', strtotime($date));
$lastday = date('Y-m-d', strtotime("$firstday +1 month -1 day"));
$firstday = date('Y-m-01 00:00:00', strtotime($date)); //本月第一天
$lastday = date('Y-m-d 23:59:59', strtotime("$firstday +1 month -1 day")); //本月最后一天
其他时间:
echo " 本月共有:".date("t")."天";
echo " 当前年份".date('Y');
echo " 当前月份".date('m');
echo " 当前几号".date('d'); -
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- <?php
- echo date("Ymd",strtotime("now")), "\n";
- echo date("Ymd",strtotime("-1 week Monday")), "\n";
- echo date("Ymd",strtotime("-1 week Sunday")), "\n";
- echo date("Ymd",strtotime("+0 week Monday")), "\n";
- echo date("Ymd",strtotime("+0 week Sunday")), "\n";
- echo "*********第几个月:";
- echo date('n');
- echo "*********本周周几:";
- echo date("w");
- echo "*********本月天数:";
- echo date("t");
- echo "*********";
- echo '<br>上周起始时间:<br>';
- echo date("Y-m-d H:i:s",mktime(0, 0 , 0,date("m"),date("d")-date("w")+1-7,date("Y"))),"\n";
- echo date("Y-m-d H:i:s",mktime(23,59,59,date("m"),date("d")-date("w")+7-7,date("Y"))),"\n";
- echo '<br>本周起始时间:<br>';
- echo date("Y-m-d H:i:s",mktime(0, 0 , 0,date("m"),date("d")-date("w")+1,date("Y"))),"\n";
- echo date("Y-m-d H:i:s",mktime(23,59,59,date("m"),date("d")-date("w")+7,date("Y"))),"\n";
- //从第几周找出该周的开始日期和结束日期
- $dayNumber = date('W') * 7;
- $weekDayNumber = date("w", mktime(0, 0, 0, 1, $dayNumber, date("Y")));//当前周的第几天
- $startNumber = $dayNumber - $weekDayNumber;
- echo date("Y-m-d", mktime(0, 0, 0, 1, $startNumber + 1, date("Y")));//开始日期
- echo date("Y-m-d", mktime(0, 0, 0, 1, $startNumber + 7, date("Y")));//结束日期
- echo '<br>上月起始时间:<br>';
- echo date("Y-m-d H:i:s",mktime(0, 0 , 0,date("m")-1,1,date("Y"))),"\n";
- echo date("Y-m-d H:i:s",mktime(23,59,59,date("m") ,0,date("Y"))),"\n";
- echo '<br>本月起始时间:<br>';
- echo date("Y-m-d H:i:s",mktime(0, 0 , 0,date("m"),1,date("Y"))),"\n";
- echo date("Y-m-d H:i:s",mktime(23,59,59,date("m"),date("t"),date("Y"))),"\n";
- $season = ceil((date('n'))/3);//当月是第几季度
- echo '<br>本季度起始时间:<br>';
- echo date('Y-m-d H:i:s', mktime(0, 0, 0,$season*3-3+1,1,date('Y'))),"\n";
- echo date('Y-m-d H:i:s', mktime(23,59,59,$season*3,date('t',mktime(0, 0 , 0,$season*3,1,date("Y"))),date('Y'))),"\n";
- $season = ceil((date('n'))/3)-1;//上季度是第几季度
- echo '<br>上季度起始时间:<br>';
- echo date('Y-m-d H:i:s', mktime(0, 0, 0,$season*3-3+1,1,date('Y'))),"\n";
- echo date('Y-m-d H:i:s', mktime(23,59,59,$season*3,date('t',mktime(0, 0 , 0,$season*3,1,date("Y"))),date('Y'))),"\n";
- ?>
php日周月排行版
最新推荐文章于 2025-05-05 20:45:40 发布