Avoid double <br /> tags in user input

From: Chris (teddymaflu_nospam_at_fastmail.fm)
Date: 08/30/04 

Date: Mon, 30 Aug 2004 21:27:45 +0200

Hello,

I have a form on my page so that users can input comments in a MySQL
table. I use the nl2br function to filter the input. If a user press
twice on the Enter key, this creates a double <br /> tag. How can I
avoid that? How to convert double br tags into single br tags?

Thank you for your help.

Cheers

Chris

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