这周是从哪天开始到哪天结束的呢？

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javascriptfunction getWeekDate($timestamp) { // 获取年份 $year=date('Y', $timestamp); // 获取本周是第几周 $weeknum=date('W', $timestamp); // 获取年份中的第几天 $day=date('z', $timestamp); // 从周一开始表示 $weekStart=date('Y-m-d', mktime(0, 0, 0, date('m', $timestamp), date('d', $timestamp) - ($day % 7), date('Y', $timestamp))); return $weekStart;}

function getWeekDate($timestamp) { //年份 如2015年 $year = date('Y', $timestamp); //本年份第几周 $weeknum = date('W', $timestamp); //年份中的第几天 0 到 365 $day = date('z', $timestamp); //周几 1（表示星期一）到 7（表示星期天） $weekday = date('N', $timestamp); //本年的第一天是周几 $firstDayOfWeek = date('w', mktime(0,0,0,1,1,$year)); //echo $year.'--'.$weeknum.'--'.$day.'--'.$weekday; //本年的第一周 if ($weeknum == 1) { $startdate = date('Y-m-d',mktime(0,0,0,1,1,$year)); $enddate = date('Y-m-d',mktime(0,0,0,1,7-$firstDayOfWeek+1,$year)); //最后几天并入下一年第一周的情况，如2014/12/29算2015年第一周 //非下一年第一周 (>7表示前一年的最后几天) if ($day > 7) { //每周的开始时间 $day+1-$weekday+1 $startdate = date('Y-m-d',mktime(0,0,0,1,$day+1-$weekday+1,$year)); $enddate = date('Y-m-d',mktime(0,0,0,12,31,$year)); } } elseif ($weeknum == 53) { //本年最后一周 $startdate = date('Y-m-d',mktime(0,0,0,1,$day+1-$weekday+1,$year)); $enddate = date('Y-m-d',mktime(0,0,0,12,31,$year)); }else {//其他情况 $startdate = date('Y-m-d',mktime(0,0,0,1,$day+1-$weekday+1,$year)); $enddate = date('Y-m-d',mktime(0,0,0,1,$day+7-$weekday+1,$year)); } return array($startdate,$enddate); }