PHP将月份所有天数分段

[php]代码库

//本功能纯属当前项目需要所写，有更好的方法欢迎大家留言探讨

//计算日期所在月份的起始和结束时间
function getMonthRange($date){
     $ret=array();
     $timestamp=strtotime($date);
     $mdays=date('t',$timestamp);
     $ret['sdate']=strtotime(date('Y-m-1 00:00:00',$timestamp));
     $ret['edate']=strtotime(date('Y-m-'.$mdays.' 23:59:59',$timestamp));
     return $ret;
 }

//时间分段显示 
function getTimePartRange($year,$month,$part){ //年、月，分组个数
    $nyear = date('Y',time());
    $nmonth = date('m',time());
    $nday = date('d',time());
    $retday = getMonthRange($year.'-'.$month.'-'.$nday);
    $sdate = date('d',$retday['sdate']);
    $edate = date('d',$retday['edate']);
    
    if($year==$nyear && $month==$nmonth){
        $edate=$nday;
    }
    for($i=1;$i<=$edate;$i++){
        $timeArray[] = $i;
    }
    $countAry = count($timeArray);
    $intAry = floor($countAry/$part); //舍去法取整,为0的时候，表示分组个数大于了日期数，多出的分组个数值为0
    $modAry = $countAry%$part; //取余数
    $modDay = $part-$modAry; //计算多余天数的分配起始位置
    
    //将时间切割出时段
    $z = 0;
    if($intAry!=0){
        $d = $intAry;
    }else{
        $d = 1;
    }
    for($i=1;$i<=$part;$i++){
        $timePart[$i] = array_slice($timeArray,$z,$d);
        $z += $d;
        if($intAry!=0){
            if($i == $modDay){
                $d = $d+1;
            }
        }
    }
    
    return $timePart;
}

//调用实例
$timePart = getTimePartRange(2015,4,7); //年,月，分组个数
foreach($timePart as $k => $v){
     $datePart[$k]['sdate'] = $year.'-'.$month.'-'.$v[0].' 00:00:00'; 
     $datePart[$k]['edate'] = $year.'-'.$month.'-'.end($v).' 23:59:59'; 
}