Re: preg_replace - regex for replace string
| From: | Miguel Cruz | Date: | Wed, 27 Mar 2002 23:17:24 +0000 |
| Subject: | Re: preg_replace - regex for replace string | ||
| References: | 1 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-90448@lists.php.net to get a copy of this message | ||
On Wed, 27 Mar 2002, James Taylor wrote:
> Ok, let me try to refine this as the big picture. User enters something into
> a form.
>
> We take that form value and convert newlines into <br /> though nl2br.
>
> Then, I want the limit the number of consecutive <br />'s a user can enter,
> to avoid abuse via a person just holding down enter for a while.
>
> $message = nl2br($message);
> $message = preg_replace("/\n/", "", $message);
>
> while (stristr($message, '<br /><br /><br />')) {
> $message = str_replace('<br /><br /><br />', '<br
> /><br />', $message);
> }
If you want to keep it to a maximum of, say, 2 <br /> tags, then why not
just use something like:
$message =
preg_replace('/(<br />\w*){2,}/', '<br /><br />',
nl2br($message));
miguel