用php获取本周、本月第一天与最后天时间戳。
1，获取今天的时间范围：
<?php$start = mktime(0,0,0,date("m"),date("d"),date("Y")); $end = mktime(0,0,0,date("m"),date("d")+1,date("Y"));
2，获取本周第一天/最后一天的时间戳
<?php$year = date("Y");$month = date("m");$day = date('w');$nowMonthDay = date("t");$firstday = date('d') - $day;if(substr($firstday,0,1) == "-"){$firstMonth = $month - 1;$lastMonthDay = date("t",$firstMonth);$firstday = $lastMonthDay - substr($firstday,1);$time_1 = strtotime($year."-".$firstMonth."-".$firstday);}else{$time_1 = strtotime($year."-".$month."-".$firstday);}$lastday = date('d') + (7 - $day);if($lastday > $nowMonthDay){$lastday = $lastday - $nowMonthDay;$lastMonth = $month + 1;$time_2 = strtotime($year."-".$lastMonth."-".$lastday);}else{$time_2 = strtotime($year."-".$month."-".$lastday);}
3，获取本月第一天/最后一天的时间戳
<?php$year = date("Y");$month = date("m");$allday = date("t");$strat_time = strtotime($year."-".$month."-1");$end_time = strtotime($year."-".$month."-".$allday);
计算时间差
$one = strtotime('-12-08 07:02:40');//开始时间 时间戳
$tow = strtotime('-12-25 00:00:00');//结束时间 时间戳
$cle = $tow - $one; //得出时间戳差值
$d = floor($cle/3600/24);
$h = floor(($cle%(3600*24))/3600);//%取余
$m = floor(($cle%(3600*24))600/60);
$s = floor(($cle%(3600*24))`);
echo "两个时间相差 $d 天 $h 小时 $m分 $s 秒"
