显示 SQL 结果时 nl2br() 不起作用

问题描述

在我的 Joomla 模块上，我们使用以下代码从数据库中获取喊声

On my Joomla module, we are using the following code to get shouts from the database

function getShouts($number, $timezone, $message) {
    $shouts = array();
    $db = JFactory::getDBO();
    $query = $db->getQuery(true);
    $query->select('*')
    ->from('#__shoutbox')
    ->order('id DESC');
    $db->setQuery($query , 0 , $number);
    $rows = $db->loadObjectList();
    $i=0;
    foreach ( $rows as $row ) {
        $shouts[$i]->id = $row->id;
        $shouts[$i]->name = $row->name;
        $shouts[$i]->msg = $row->msg;
        $i++;
    }
    return $shouts;
}

和下面的代码显示在default.php

print stripslashes($shouts[$i]->msg);

然而，当有人想要输入如下内容时，这会导致问题:

However this is causing problems when someone wants to input something like the following:

test line 1
test line 2

如果他们换行，则帖子在提交后显示如下:

If they go onto a new line, the post displays like so after being submitted:

test line 1rntest line 2

所以我做了一些研究并意识到我必须使用 nl2br() ，我做了如下所示:

So I did some research and realised I had to use nl2br() which I did as shown below:

print stripslashes(nl2br($shouts[$i]->msg));

然而，它似乎并没有解决问题.我还尝试在 helper 中创建另一个函数以使用 preg_replace 替换它，但这也无济于事.

however, it didn't seem to resolve the issue. I also tried creating another function in the helper to replace it using preg_replace but this didn't help either.

谁能解释为什么在添加 nl2br() 后换行不起作用以及如何修复它?

Can anyone explain why line breaking isn't working after adding nl2br() and how to fix it?

推荐答案

试试这个:

print nl2br(stripcslashes($shouts[$i]->msg));

注意 stripcslashes() 函数，而不是 stripslashes()

Pay attention to the stripcslashes() function, but not stripslashes()

或者只是:

print nl2br($shouts[$i]->msg);

UPD: nl2br() 函数将 替换为
.问题是您的文本中没有 ，但有 n 或 \n.我认为从 base 获取数据时没有必要使用 stripslashes() ，除非你在 base 中删除了数据.

UPD: nl2br() function replaces with <br />. The problem is that you don't have in your text, but have n or \n. I think there is no need to use stripslashes() when you get data from base, except the situation when you have ecranized data in your base.

这篇关于显示 SQL 结果时 nl2br() 不起作用的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持跟版网！