Question

我正在形成一种超文本形式,其中载有一些文本领域的代码。

The generated HTML looks like this:

<textarea id="message" name="message"
    rows="18" cols="40">The quick brown fox
    <?php echo $page_url;?>
</textarea>

当该网页放在浏览器上时,它就认为:

The quick brown fox
         http://www.example.com

I cant explain it, since the variable contains no leading spaces - and no CSS styling is being applied either.

谁能想到可能产生这种情况?

Answer 1

<代码><textarea>内的白天空被作为人提供,与超文本不同,后者使连续的白色空间成为一种空间。

<textarea id="message" name="message"
    rows="18" cols="40">The quick brown fox<?php echo $page_url;?></textarea>

Answer 2

文本区域尊重空间和断线。它不同于html文件本身的行为。

Answer 3

There are some spaces (or a tab) on the left of <?php echo ... They will be displayed. Multiple Whitespaces wont get removed in a Textarea.

<textarea id="message" name="message"
    rows="18" cols="40">The quick brown fox
<?php echo $page_url ?>
</textarea>

Answer 4

Simply the fact that you indented you code...

Try that:

<textarea id="message" name="message"
    rows="18" cols="40">The quick brown fox
<?php echo $page_url;?>
</textarea>

Answer 5

空间在文本中保留。

var te = document.createElement( textArea );
te.innerHTML =  asddf   asdf
                  http ;
document.body.appendChild(te);

我刚刚在大火中用粗略的试射法来展示。

To fix you d want something like this

<textarea>some test<?=$var?></textarea>

Answer 6

no need use new line inside the text area, While render it consider new line as some white space.

Answer 7

The text area shows mysterious spaces because it consider all spaces , line breaks (using enter button ) which exists beteen the <textarea> tags. <textarea> <php? echo $var; ?> </textarea> after removing these extra spaces or line breaks it should look as following. <textarea><php? echo $var; ?></textarea>.

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