You are replacing 1 or more matchs of a new line. To match 2 or more you can
use "{2,}". It's a range, first number means min matches, second max matches.
Omitting last number means no max limit.
$data[txt] = preg_replace('`[\r\n]{2,}`',"\n",$data[txt]);
________________________________
De: Merlin Morgenstern <merli...@fastmail.fm>
Para: php-general@lists.php.net
Enviado: mié,14 octubre, 2009 12:17
Asunto: [PHP] regex for multiple line breakes
Hi there,
I am trying to remove multiple linebreakes from a textarea input. Spammers tend
to insert multiple line breakes. The problem is, that I want to allow 2 line
breaks so basic formating should be allowed.
I am doing this by regex:
$data[txt] = preg_replace('`[\r\n]+`',"\n",$data[txt]);
I would need a regex that allows \r\n\r\n, but not more than this.
Thank you for any help,
Merlin
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