Capturing linebreaks (newline,linefeed) characters in a textarea

Question

I have a form with a <textarea> and I want to capture any line breaks in that textarea on the server-side, and replace them with a <br/>.

Is that possible?

I tried setting white-space:pre on the textarea's CSS, but it's still not enough.

Answer 1

Have a look at the nl2br() function. It should do exactly what you want.

Answer 2

The nl2br() function exists to do exactly this:

However, this function adds br tags but does not actually remove the new lines - this usually isn't an issue, but if you want to completely strip them and catch carriage returns as well, you should use a str_replace or preg_replace

I think str_replace would be slightly faster but I have not benchmarked;

$val = str_replace( array("\n","\r","\r\n"), '<br />', $val );

or

$val = preg_replace( "#\n|\r|\r\n#", '<br />', $val );