从 POST 传递带有换行符的字符串时，文本区域未更新？

发布于 2024-11-19 18:23:42 字数 910 浏览 1 评论 0原文

我的代码遇到了一些麻烦，我将其范围缩小并简化为以下两个部分：

index.html

<html>
<body>

<form name="form" method="post" action="upload.php" target="iframe">
<textarea id="text1" name="text1"></textarea>
<input type="submit" />
</form>

<textarea id="text2"></textarea>

<iframe name="iframe" id="iframe" style="display:none;" ></iframe>

</body>
</html>

upload.php：

<?php
$message= $_POST['text1'];

echo <<<_END
<script language="JavaScript" type="text/javascript">
var parDoc = window.parent.document;
parDoc.getElementById('text2').value = '$message';
</script>
_END;
?>

代码的总体目标上面是在text2中呈现我从text1提交的内容。这适用于 text1 中包含换行符的消息。当尝试提交带有换行符的消息时，text2 不会更新。我似乎无法追踪错误，而且我真的陷入了这个错误的心理困境。有什么想法吗？同样，这是我的整体代码的简化版本。我将错误缩小到这个问题。

原文

I'm running into some troubles with my code, which I narrowed down and simplified in the two following segments:

index.html

<html>
<body>

<form name="form" method="post" action="upload.php" target="iframe">
<textarea id="text1" name="text1"></textarea>
<input type="submit" />
</form>

<textarea id="text2"></textarea>

<iframe name="iframe" id="iframe" style="display:none;" ></iframe>

</body>
</html>

upload.php:

<?php
$message= $_POST['text1'];

echo <<<_END
<script language="JavaScript" type="text/javascript">
var parDoc = window.parent.document;
parDoc.getElementById('text2').value = '$message';
</script>
_END;
?>

The overall goal of the code above is to present in text2, what I submitted from text1. This works with the exception of a message in text1 that contains newlines. When attempting to submit a message with newlines text2 is not updated. I can't seem to trace the error and I'm really stuck in a mental rut with this one. Any ideas? Again, this is a simplified version of my overall code. I whittled the error down to this problem.

分享到QQ

分享到微博

如果你对这篇内容有疑问，欢迎到本站社区发帖提问参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。

发布评论

需要登录才能够评论，你可以免费注册一个本站的账号。

画骨成沙 2024-11-26 18:23:42

在 upload.php 中尝试一下

<?php
$message= nl2br($_POST['text1']);
$message = str_replace("\r\n",'',$message);

echo '
<script language="JavaScript" type="text/javascript">
var parDoc = window.parent.document;
var text = "' . $message . '";
text = text.replace(/<br \/>/ig,"\\n");
parDoc.getElementById("text2").value = text;
</script>';
?>

Try this in upload.php

<?php
$message= nl2br($_POST['text1']);
$message = str_replace("\r\n",'',$message);

echo '
<script language="JavaScript" type="text/javascript">
var parDoc = window.parent.document;
var text = "' . $message . '";
text = text.replace(/<br \/>/ig,"\\n");
parDoc.getElementById("text2").value = text;
</script>';
?>

回复收藏 0 原文

~没有更多了~