----- Original Message -----
From: Mike Brandonisio
Hi Bob,
How do you deal with "500 or more "X"s with no spaces"?
You could explode the posted message on [space] and do a strlen() on
each position in the array? Then test for strlen() greater than 60
characters. If you get a hit do str_replace() on the original message
with an empty string.
Do you do it another way?
==============================
Hi Mike,
I originally searched through the words, then used a regex:
// any character repeated >=3 convert to 2
$raw = preg_replace('/(.){3,}/', '$1$1', $raw);
But I thought it might be hogging the processor too much on a shared server,
especially with a large message. I seem to remember reading that preg_replace()
with backreferences consumes a lot of cycles, and I'd just heard about a couple
of people being throw off shared servers for hogging.
I'd forgotten I'd taken it out, and might use your method with str_replace().
Here's a easy little swear filter for anyone interested, but needs a bit more
work. It copes with A-S-S_H*O*L*E or A S S H O L E etc. as that was one way of
defeating filters, but has trouble with anyone living in Scunthorpe. I think it
would need to loop through again with spaces in, or make Scunthorpe an
exception.
function profanity_test($content) {
global $swear;
$banned_words = array('asshole', 'list of words etc');
//stripout everything except text and numbers
$content = preg_replace('/[^A-Za-z0-9]/', '', $content);
foreach ($banned_words as $found) {
if (preg_match("/$found/i", $content)) {
$swear = '<b style="color:red">'.strtoupper($found).'</b>';
}
}
}
profanity_test($message);
if ($swear) echo "<li>Profanity $swear detected</li>";
Regards, Bob E.
Community email addresses:
Post message: [email protected]
Subscribe: [EMAIL PROTECTED]
Unsubscribe: [EMAIL PROTECTED]
List owner: [EMAIL PROTECTED]
Shortcut URL to this page:
http://groups.yahoo.com/group/php-list
Yahoo! Groups Links
<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/php-list/
<*> To unsubscribe from this group, send an email to:
[EMAIL PROTECTED]
<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
