PHP部分时间函数总结

平时总会遇到时间函数，下面就自定义了几个时间函数：

①根据两个时间戳计算时间差

/*
*计算时间差函数
*/
    function timediff($begin_time,$end_time)
    {
        if($begin_time < $end_time){
        $starttime = $begin_time;
        $endtime = $end_time;
        }else{
        $starttime = $end_time;
        $endtime = $begin_time;
        }

        //计算天数
        $timediff = $endtime-$starttime;
        $days = intval($timediff/86400);
        //计算小时数
        $remain = $timediff%86400;
        $hours = intval($remain/3600);
        //计算分钟数
        $remain = $remain%3600;
        $mins = intval($remain/60);
        //计算秒数
        $secs = $remain%60;
        $res = array("day" => $days,"hour" => $hours,"min" => $mins,"sec" => $secs);
        return $res;
    }

②根据两个时间戳计算相差的天数 ----timediff为

上一个函数

function dayTime($begin_time,$end_time,$controller = null){
        date_default_timezone_set('Asia/Shanghai');     //设置时区,不然就用默认的
        $timediff = timediff($begin_time,$end_time);
        $totalTime = floatval(($timediff['sec']+($timediff['min']*60)+($timediff['hour']*3600)+($timediff['day']*3600*24))/3600);
        if($controller == null){
            echo round($totalTime, 2);  //保留小数点两位
        }else{
            return round($totalTime, 2);
        }
    }

③根据

两个时间戳判断是否同一天----timediff为上一个函数

/*
* 判断是否一年中的同一天
*/
    function sameDay($begin_time,$end_time){  //传入时间戳
        if(date("z",$begin_time) != date("z",$end_time)){  //非一年中的同一天
            return false;
        }elseif (date("z",$begin_time) == date("z",$end_time)) { //是一年中的同一天
            return true;
        }
    }