Bad Word Filter and Calling in Code (again ;))

Hiya

Im currently working on building a forum, and I have ran into a few difficulties, well, maybe not, "difficulties" as such, but troubleing events! :)

The first, is my bad word filter, the only way I can think of doing this, is by putting each individual word in the post into an array, thats easy enough, and then putting every "banned" word into another array. It would then run a loop which compared the two and if it found a bad word it would change it. However this seems like itll be alot of hard work for the forum as its checking like, 10 words, against every 1 word in the post!

Im having a little trouble with my LINK call ;)

Code:

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<link rel="script" type="php" href="page-stats.php">

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can anyone help me as of where i went wrong? I did put ths in the head btw!

You wouldn't have to loop through every word in the post. You could use preg_replace() to replace every occurance of each banend word. So if you had to words, you'd just have to loop through each one of them.

Do a search of these forums on preg_replace() to see some good examples that have been posted.

A quick note: why preg_replace() instead of str_replace()?

preg_replace() will allow you to use expressions to do smart replaces. Say you want to replace the word 'ass'

Using str_replace(), it will also replace 'glass', 'grass', 'mass', etc. preg_replace will allow you to see if it's a single word, and replace things like 'dumb-ass, ass!, ass? ass, etc. For str_replace() you would need to do each one of those individually.

Quote:

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Originally posted by JafferAB
Im having a little trouble with my LINK call ;)

Code:

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<link rel="script" type="php" href="page-stats.php">

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can anyone help me as of where i went wrong? I did put ths in the head btw!

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that is invalid and you can't do it that way. you have to use php's include

Quote:

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Originally posted by The Hobo
You wouldn't have to loop through every word in the post. You could use preg_replace() to replace every occurance of each banend word. So if you had to words, you'd just have to loop through each one of them.

Do a search of these forums on preg_replace() to see some good examples that have been posted.

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yeah, i knwo that, but it would still mean splitting up every word into an array and then use the array of bad words to search through very bit of the variable.

Quote:

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that is invalid and you can't do it that way. you have to use php's include

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just did a quick look in my book, and seems like this include() statement is pretty cool :)

cheers!

Quote:

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Originally posted by JafferAB
yeah, i knwo that, but it would still mean splitting up every word into an array and then use the array of bad words to search through very bit of the variable.

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What...?

Code:

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'if storing words in a database:
function cusswords($text) {
    //connect to database
       
    $results = mysql_query("SELECT * FROM CussWords");
    if ($result = mysql_fetch_array($results)) {
        do {
            $text = preg_replace("/([\:-\@]|[\[-\`]|[\!-\/]|\s|^)" . preg_quote($result['word']) . "(\s|$|[\:-\@]|[\!-\/]|[\[-\`])/isu","\\1" . $result['rep'] . "\\2", $text);
        } while ($result = mysql_fetch_array($results));
    }
       
    return $text;
}


'if storing words in an array:
function cusswords($text) {       
    $words[] = array("dog", "cat", "fish");
    $rep[] = array("***", "***", "***");
       
    for ($i = 0; $i < count($words); $i++) {
        $text = preg_replace("/([\:-\@]|[\[-\`]|[\!-\/]|\s|^)" . preg_quote($words[$i]) . "(\s|$|[\:-\@]|[\!-\/]|[\[-\`])/isu","\\1" . $rep[$i] . "\\2", $text);
    }
       
    return $text;
}

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It's that easy. Execution only takes a few seconds. This is the best way to do it. I still don't understand what your problem is.