Cannot get the value of a textarea via post method [closed]

问题

This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, visit the help center.

Closed 6 years ago.

It is a very simple form as in the code below:

 <form method="POST" action="news.php?nid=2">
  <textarea id="txtcomment" style="width:100%; height: 70px;" maxlength="300"></textarea><br /><br />
  <input type="submit" class="button" style="float: right; cursor:pointer;" value="Comment">
 </form>

but in the news.php i cannot get the value of "txtcomment"

 echo $_POST['txtcomment'];

it returns nothing...

回答1:

It is because you need to name the textarea:

<textarea name="txtcomment"></textarea>

The id parameter does not have anything to do with how forms work (with the exception of labels, but that is not important here).

回答2:

Specify the name attribute of the textarea.

回答3:

Add name attribute in textarea

<textarea id="txtcomment" name="txtcomment" style="width:100%; height: 70px;" maxlength="300"></textarea>

回答4:

you need to have an attribute name with txtcomment in it, you have an attribute 'id'

回答5:

You have to define a name attribute (the id attribute is possible but not necessary).

<textarea name="txtcomment" ...>

回答6:

textarea name must be txtcomment not id like

<form method="POST" action="news.php?nid=2">
<textarea id="txtcomment" name="txtcomment" style="width:100%; height: 70px;" maxlength="300"></textarea><br /><br />
<input type="submit" class="button" style="float: right; cursor:pointer;" value="Comment">
</form>

回答7:

It's not id="" that names the field in your array, it's name="".

<textarea name="txtcomment" id="txtcomment" style="width:100%; height: 70px;" maxlength="300"></textarea><br /><br />

来源：https://stackoverflow.com/questions/16066731/cannot-get-the-value-of-a-textarea-via-post-method