在html textarea中按Enter时如何使用jquery添加换行符

Question

I've been looking all over Google, and found some interesting ways to do this, but none of them hide the <br />

I read that if I used \\n it wouldn't show up, but it does show up in the text field. I can always have something in the textarea and preg_replace it with <br /> later I suppose in my php that handles the form associated with the text area.

To clarify, I have a textarea that will need several line breaks to separate content. So I want a user to be able to press enter for a new line, and add a <br /> at the end of each line. But I do not want the <br /> or whatever I insert to replace later to be visible to the user.

A good example is Facebook. Facebook is very javascript heavy. So much that you need to press shift + enter in order to get a new line so the form doesn't submit. But when you enter text on two lines there is a line break inserted so the content displays on two lines and you never see the <br /> or whatever they use inside of the form when writing your post.

How can I do this?

Answer 1

I used the php nl2br function to convert \\n to <br />

http://www.php.net/manual/en/function.nl2br.php

I like this method because it doesn't require anything extra. Just wrap nlbr2() around my variable and that is it. Php is all ready adding the \\n for me, just needed to convert it.

Answer 2

use nl2br() before save the similar content.

http://www.php.net/manual/en/function.nl2br.php

$content = nl2br($content);

and save.