preg_replace and arrays

[melody]

hi. Can anyone tell me why the following won't work? I want to replace all 'bad words' as defined in the $badword array with "*****", but I just get the original text printed out all the time.

$badword[] = "bad1";
$badword[] = "bad2";
$badword[] = "bad3";

$text = "here is a bad1 load of text bad2 with some very bad3 words in it";

$text = preg_replace("/$badword/i", "*****", $text);

echo $text;

i've tried various things like using badword[] in the preg_replace but that just brings up errors. pcre is enabled and i've tried it on 2 different servers. I've set error_reporting(15) and it doesn't throw up any error messages. Any idea how to do it?

Thanks
Melody

[webdes03]

Try something like the following. $text contains the text you wish to take the bad words out of:

<?php
	$find = array(
		'badword1',
		'badword2',
		'badword3',
		'badword4'
	);

$replace = array(
	'********',
	'********',
	'********',
	'********'
);

function stri_replace($find,$replace,$string)
{
        if(!is_array($find)) $find = array($find);
        if(!is_array($replace)) $replace = array($replace);
        foreach($find as $fKey => $fItem)
        {
                $between = explode(strtolower($fItem),strtolower($string));
                $pos = 0;
                foreach($between as $bKey => $bItem)
                {
                        $between[$bKey] = substr($string,$pos,strlen($bItem));
                        $pos += strlen($bItem) + strlen($fItem);
                }
                $string = implode($replace[$fKey],$between);
        }
        return($string);
}

echo stri_replace($find,$replace,$text);

?>