计算一段日期内的周末天数（星期六，星期日总和）(

简介：这是计算一段日期内的周末天数（星期六，星期日总和）(的详细页面，介绍了和php,有关的知识、技巧、经验，和一些php源码等。

class=’pingjiaF’ frameborder=’0′ src=’http://biancheng.dnbcw.info/pingjia.php?id=343578′ scrolling=’no’>function get_weekend_days($start_date,$end_date){

if (strtotime($start_date) > strtotime($end_date)) list($start_date, $end_date) = array($end_date, $start_date);

$start_reduce = $end_add = 0;

$start_N = date(‘N’,strtotime($start_date));

$start_reduce = ($start_N == 7) ? 1 : 0;

$end_N = date(‘N’,strtotime($end_date));

in_array($end_N,array(6,7)) && $end_add = ($end_N == 7) ? 2 : 1;

$days = abs(strtotime($end_date) – strtotime($start_date))/86400 + 1;

return floor(($days + $start_N – 1 – $end_N) / 7) * 2 – $start_reduce + $end_add;

}

echo get_weekend_days(date(“Y-m-d H:i:s”,time()),”2011-8-21 15:23:48″);