line breaks

Hi all

I'm a php newbie, though quite familiar with asp.

I'm trying to get the line breaks showing when the 'DescTxt' field data is
inserted on my page. I know (I think!) this is something to do with
'replace', but I don't know how to apply it to the following:

<p><?php echo $row_rsItemDetails['DescTxt']; ?></p>

I have searched and searched, but it's all Greek to me! If someone could
help me out and show me how the above code should look, I'd be much obliged.

many thanks

Chris