我正在为读者创建一个帖子区域，我的问题是，当用户插入新帖子时，它将以这种形式保存到数据库中：

Some say the world will end in fire,<br /> Some say in ice.<br /> From what I’ve tasted of desire<br /> I hold with those who favor fire.<br /> But if it had to perish twice,<br /> I think I know enough of hate<br /> To say that for destruction ice<br /> Is also great<br /> And would suffice.

我希望这样保存它：

 Some say the world will end in fire,<br />
 Some say in ice.<br />
 From what I’ve tasted of desire<br />
 I hold with those who favor fire.<br />
 But if it had to perish twice,<br />
 I think I know enough of hate<br />
 To say that for destruction ice<br />
 Is also great<br />
 And would suffice.

我希望它在每次换行后都保留标签（用于编辑问题）“输入”

在插入数据库之前，这是我当前的发布文本参数

$body = strip_tags($body);
$body = mysqli_real_escape_string($this->con,$body); 
$body = str_replace('\r\n',"\n",$body);
$body = nl2br($body);