Help on creating a sort of filter...

[brandonr]

I'm working on a small PHP script that allows users to enter their comments and it automatically add them... It uses filesystems, since databases are a bit too complex for something so simple.

Anyways, I would like to put a sort of curse filter on it to prevent PHP from automatically adding and comments with curse words, but here I've stumbled onto a problem. I originally thought that the strstr() function would work, but that only works when you're trying to find one specific word in the string... I tried an array with the "special words" in it, but arrays don't seem to work in the strstr() function. Any ideas anyone?

BTW, I was using something like

if(!$search)

Since if the words are not found, it returns a false value correct? Thanks for your help..

[petrb]

I have not used this in a while, but it uses the array approach and it worked once, it should get you started:

// where $input is the user input:

$profan = array("take","your","pick");

$blurb = "badword";
$cnt = count($profan);
if ( $cnt > 0 ){
$a=0;
while($a<$cnt){
$sWord = $profan[$a];

  if(strstr(strtoupper($input), strtoupper($sWord))){
    if(strtoupper($input)==strtoupper($sWord)) $input=$blurb;
    $input = eregi_replace("^$sWord([^a-zA-Z])", "$blurb\\1", $input);
    $input = eregi_replace("([^a-zA-Z])$sWord$", "\\1$blurb", $input);
    while(eregi("([^a-zA-Z])($sWord)([^a-zA-Z])", $input)){
      $input = eregi_replace("([^a-zA-Z])($sWord)([^a-zA-Z])", "\\1$blurb\\3", $input);
    }
  }
  $a++;
}

}

--ph

[brandonr]

Thanks a lot!