<?
 
// BadWordFilter
// This function does all the work. If $replace is 1 it will replace all bad words
// with the wildcard replacements.  If $replace is 0 it will not replace anything.
// In either case, it will return 1 if it found bad words or 0 otherwise.
// Be sure to fill the $bads array with the bad words you want filtered.
 
FUNCTION BadWordFilter(&$text, $replace){
 
     // fill this array with the bad words you want to filter and their replacements
     $bads = ARRAY (
          ARRAY("butt","b***"),
          ARRAY("poop","p***"),
          ARRAY("crap","c***")
     );
 
     IF($replace==1) {                                        //we are replacing
          $remember = $text;
 
          FOR($i=0;$i<sizeof($bads);$i++) {               //go through each bad word
               $text = EREGI_REPLACE($bads[$i][0],$bads[$i][1],$text); //replace it
          }
 
          IF($remember!=$text) RETURN 1;                     //if there are any changes, return 1
 
     } ELSE {                                                  //we are just checking
 
          FOR($i=0;$i<sizeof($bads);$i++) {               //go through each bad word
               IF(EREGI($bads[$i][0],$text)) RETURN 1; //if we find any, return 1
          }     
     }
}
 
// this will replace all bad words with their replacements. $any is 1 if it found any
$any = BadWordFilter($wordsToFilter,1); 
 
// this will not repace any bad words. $any is 1 if it found any
$any = BadWordFilter($wordsToFilter,0); 
 
?>