[RESOLVED] preg_replace Problem

Hi guys,

Im trying to replace a words that are entered into a settings field (seperated by a ,)

So in my admin panel I enter words in the "hide_words" setting field like so: hello,goodbye,tommy,today

Heres my example:

PHP Code:

---

$words = explode(",",settings['hide_words']);

$replace = "<b>[Disallowed]</b>";
$message = preg_replace("#$words#", "$replace", $message); 


---

Doesnt seem to be replacing the words.

The pattern in preg_replace() has to be a string; you can't create a string by sticking an array in it like you've got there. You can either take $words and create a string via implode(), like so:

PHP Code:

---

$words = explode(",",$settings['hide_words']);
$replace = "<b>[Disallowed]</b>";
$message = preg_replace("#".implode("|",$words)."#", $replace, $message); 


---

...or you could save your variable the trauma of an explode/implode by doing a str_replace() instead:

PHP Code:

---

$replace = "<b>[Disallowed]</b>";
$message = preg_replace("#".str_replace(",","|",$settings['hide_words'])."#", $replace, $message); 


---

I used the second method and it works perfeclty, thanks alot SambaNeko +1