$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());