限定时间格式化

    /**
     * 秒转时间，格式 年 月 日 时 分 秒
     *
     * @author wangyupeng129@126.com
     * @param int $time
     * @return array|boolean
     */
    function Sec2Time($time){
        if(is_numeric($time)){
            $value = array(
                "years" => 0, "days" => 0, "hours" => 0,
                "minutes" => 0, "seconds" => 0,
            );
            if($time >= 31556926){
                $value["years"] = floor($time/31556926);
                $time = ($time%31556926);
            }
            if($time >= 86400){
                $value["days"] = floor($time/86400);
                $time = ($time%86400);
            }
            if($time >= 3600){
                $value["hours"] = floor($time/3600);
                $time = ($time%3600);
            }
            if($time >= 60){
                $value["minutes"] = floor($time/60);
                $time = ($time%60);
            }
            $value["seconds"] = floor($time);
            return (array) $value;
        }else{
            return (bool) FALSE;
        }
    }

    function formatSec2Time($newTime){
        $sltime = $this->Sec2Time($newTime);
        $s = '';
        if(!$sltime){
            return $s;
        }
        if($sltime['years']>0){
            $s .= $sltime['years'].'年';
        }
        if($sltime['days']>0){
            $s .= $sltime['days'].'天';
        }
        if($sltime['hours']>0){
            $s .= $sltime['hours'].'小时';
        }
        if($sltime['minutes']>0){
            $s .= $sltime['minutes'].'分钟';
        }
        if($sltime['seconds']>0){
            $s .= $sltime['seconds'].'秒';
        }
        return $s;
    }