请问这句是什么意思呢？

strtotime("+$day day $second second +$date")

<?php$date = date('2013-05-09 11:00:00'); for($day=0; $day<7; $day++)  for($second=0; $second<60; $second++)        echo date('Y-m-d H:i:s', strtotime("+$day day $second second +$date")) . '
';?>

回复讨论(解决方案)

你运行下不就清楚了

令 $day = $second = 1
$date = '2013-05-09 11:00:00'

则 strtotime("+$day day +$second second $date")
就是 strtotime("+1 day 1 second 2013-05-09 11:00:00")
即返回比 2013-05-09 11:00:00 多 1 天 1 秒 的 unix时间戳

strtotime("+$day day $second second +$date")

是不是应该这么写呢

strtotime("+$day day $second second",$date)

是不是应该这么写呢

strtotime("+$day day $second second",$date)

令 $day = $second = 1
$date = '2013-05-09 11:00:00'

则 strtotime("+$day day +$second second $date")
就是 strtotime("+1 day 1 second 2013-05-09 11:00:00")
即返回比 2013-05-09 11:00:00 多 1 天 1 秒 的 unix时间戳 谢谢，版主好人呢

strtotime("+$day day $second second +$date")