将Y-m-d转换为Y年m月d日

$time = date("Y-m-d", $time);
            $var=explode(' ',$time);
            $var1=$var[0];
            $time=explode('-',$var1);
            if($time[1]<10){
            $time[1] = str_replace("0", "", $time[1]);
           }else{
                $time[1]=$time[1];
            }
            if($time[2]<10){
                $time[2] = str_replace("0", "", $time[2]);
            }else{
                $time[2]=$time[2];
            }
            $new_time  = $time[0]."年".$time[1]."月".$time[2]."日";

简单封装下

/**
     * 拼装年月日
     */

    public function rn_date($time){
        $var=explode(' ',$time);
        $var1=$var[0];
        $time=explode('-',$var1);
        if($time[1]<10){
            $time[1] = str_replace("0", "", $time[1]);
        }else{
            $time[1]=$time[1];
        }
        if($time[2]<10){
            $time[2] = str_replace("0", "", $time[2]);
        }else{
            $time[2]=$time[2];
        }
        $new_time  = $time[1]."月".$time[2]."日";
        return $new_time;
    }

根据大佬评论 耻辱删帖

echo date('Y年m月d日',time());