php 中时间函数date及常用的时间计算

$times = [];
function makeTime(){
	//获取今日开始时间戳和结束时间戳
	$beginToday=mktime(0,0,0,date('m'),date('d'),date('Y'));
	$endToday=mktime(0,0,0,date('m'),date('d')+1,date('Y'))-1;
	$times['today']['begin'] = $beginToday;
	$times['today']['end'] = $endToday;

	//获取昨日起始时间戳和结束时间戳
	$beginYesterday=mktime(0,0,0,date('m'),date('d')-1,date('Y'));
	$endYesterday=mktime(0,0,0,date('m'),date('d'),date('Y'))-1;
	$times['yesterday']['begin'] = $beginYesterday;
	$times['yesterday']['end'] = $endYesterday;

	//获取上周起始时间戳和结束时间戳
	$beginLastweek=mktime(0,0,0,date('m'),date('d')-date('w')+1-7,date('Y'));
	$endLastweek=mktime(23,59,59,date('m'),date('d')-date('w')+7-7,date('Y'));
	$times['lastWeek']['begin'] = $beginLastweek;
	$times['lastWeek']['end'] = $endLastweek;

	//获取本月起始时间戳和结束时间戳
	$beginThismonth=mktime(0,0,0,date('m'),1,date('Y'));
	$endThismonth=mktime(23,59,59,date('m'),date('t'),date('Y'));
	$times['thisMonth']['begin'] = $beginThismonth;
	$times['thisMonth']['end'] = $endThismonth;

	//获取本周开始时间和结束时间，此例中开始时间为周一
	$defaultDate = date('Y-m-d');
	$first = 1;
	$w = date('w',strtotime($defaultDate));
	$beginWeek = strtotime("$defaultDate-" . ($w?$w-$first:6) . 'days');
	$endWeek = $beginWeek + 6*24*3600-1;
	$times['thisWeek']['begin'] = $beginWeek;
	$times['thisWeek']['end'] = $endWeek;

	//获取上月的起始时间戳和结束时间戳
	$beginLastmonth=mktime(0,0,0,date('m')-1,1,date('Y'));
	$endLastmonth=mktime(23,59,59,date('m')-1,date('t'),date('Y'));
	$times['LastMonth']['begin'] = $beginLastmonth;
	$times['LastMonth']['end'] = $endLastmonth;

	//获取今年的起始时间和结束时间
	$beginThisyear = mktime(0,0,0,1,1,date('Y'));
	$endThisyear = mktime(23,59,59,12,31,date('Y'));
	$times['thisYear']['begin'] = $beginThisyear;
	$times['thisYear']['end'] = $endThisyear;

	//获取上年的起始时间和结束时间
	$beginLastyear = mktime(0,0,0,1,1,date('Y')-1);
	$endLastyear = mktime(23,59,59,12,31,date('Y')-1);
	$times['lastYear']['begin'] = $beginLastyear;
	$times['lastYear']['end'] = $endLastyear;

	//获取本季度开始时间和结束时间
	$season = ceil((date('n'))/3);//当月是第几季度
	$beginThisSeason = mktime(0, 0, 0,$season*3-3+1,1,date('Y'));
    $endThisSeason =  mktime(23,59,59,$season*3,date('t',mktime(0, 0 , 0,$season*3,1,date("Y"))),date('Y'));
	$times['thisSeason']['begin'] = $beginThisSeason;
	$times['thisSeason']['end'] = $endThisSeason;

	//获取上季度的起始时间和结束时间
	$beginLastSeason = mktime(0, 0, 0,($season-1)*3-3+1,1,date('Y'));
    $endLastSeason =  mktime(23,59,59,($season-1)*3,date('t',mktime(0, 0 , 0,$season*3,1,date("Y"))),date('Y'));
	$times['lastSeason']['begin'] = $beginLastSeason;
	$times['lastSeason']['end'] = $endLastSeason;

	return $times;
}
$times = makeTime();