HP实现计算一年多少个星期,返回一个星期的开始时间和结束时间(可选返回时间戳或日期)
2018-07-20 来源:open-open
function getWeekStartAndEnd ($year,$week=1) {
header("Content-type:text/html;charset=utf-8");
date_default_timezone_set("Asia/Shanghai");
$year = (int)$year;
$week = (int)$week;
//按给定的年份计算本年周总数
$date = new DateTime;
$date->setISODate($year, 53);
$weeks = max($date->format("W"),52);
//如果给定的周数大于周总数或小于等于0
if($week>$weeks || $week<=0){
return false;
}
//如果周数小于10
if($week<10){
$week = '0'.$week;
}
//当周起止时间戳
$timestamp['start'] = strtotime($year.'W'.$week);
$timestamp['end'] = strtotime('+1 week -1 day',$timestamp['start']);
//当周起止日期
$timeymd['start'] = date("Y-m-d",$timestamp['start']);
$timeymd['end'] = date("Y-m-d",$timestamp['end']);
//返回起始时间戳
return $timestamp;
//返回日期形式
//return $timeymd;
}
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