Re: Regular Expressions
| From: | Curt Zirzow | Date: | Mon, 05 Apr 2004 05:22:23 +0000 |
| Subject: | Re: Regular Expressions | ||
| References: | 1 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-182324@lists.php.net to get a copy of this message | ||
* Thus wrote Matt Palermo (webmaster@sweetphp.com):
> I have a page where I am stripping the html tags down. Basically, it will
> allow certain tags, but still strips out ALL attributs of the tag, so it
> works something like this:
>
> $allowed_tags = "<p><br><strong><b><i><u>";
> // State which tags are allowed
> $info = strip_tags($info, $allowed_tags);
> // Strip all unwanted tags out
> $allowed_tags = "p|br|strong|b|i|u";
> // Convert tags for regular expression
> $info = preg_replace("/<(?!".$allowed_tags.")[^>]*>/",
> '<\1>', $info); //
> Strip out all attributes from allowed tags
You might wont to try a look behind assertion:
/< (?<=p|br) [^>]+ >/x
Curt
--
"I used to think I was indecisive, but now I'm not so sure."