NineChime forum

You should try plugging in your own parser. You will be able to parse each entry of the text you will let pass through. Use regular expressions so that you could draw patterns and be able to filter words you would not like to appear. With that also, you will be able to tokenize each word and do whatever you want with it.

You can get yourself into a lot of trouble if you don't do it right, but it's fairly easy.

The simplest method is to use str_ireplace(), though maintaining capitalization and dealing with spaces requires more complex techniques, which are definitely not for newbies. 

$search  = array(
    'wolf', 'become',    'Firefox'
);
$replace = array(
    'cat',  'digivolve', 'Telnet'
);

$comment = str_ireplace ($search, $replace, $comment);