Word Censoring

[luke9_20]

Hi,
I'm trying to censor words, but not other words containing the censored words. Here's an example of my script:

$word = "butt";
$message = "butt armbutt butt butter butterfly butt.";
$message = eregi_replace(trim($word), str_repeat("*", strlen($word)), $message);
echo $message;

I only want to replace the word "butt" but not the portions of words that contain the string "butt". I don't want to but spaces around the $word string because if "butt" is the first or last word in the phrase, it won't be replaced. Any suggestions?

[LordShryku]

$word    = "butt";
$message = "butt armbutt butt butter butterfly butt.";
$message = preg_replace("/\b($word)\b/", str_repeat("*", strlen($word)), $message); 
echo $message;

[luke9_20]

Thanks LordShryku, that helped a lot! By any chance, is there any simple way to do the preg_replace so it's similar to the eregi_replace function? I'd like it so that if people type the censored word in upper or lowercase letters it still gets sensored. Is there any easy way to do that?

[LordShryku]

Yep, change your pattern from "/\b($word)\b/" to "/\b($word)\b/i"