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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)

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 || $week return false; } //如果周数小于10 if($week $week = '0'.$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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可选, 一个星期, 多少个
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