How to change this php function

[Scandal]

Well, in functions.php, there is this function for the censorship system:

PHP Code:

// #############################################################################
/**
* Replaces any instances of words censored in $vbulletin->options['censorwords'] with $vbulletin->options['censorchar']
*
* @param    string    Text to be censored
*
* @return    string
*/
function fetch_censored_text($text)
{
    global $vbulletin;
    static $censorwords;

    if (!$text)
    {
        // return $text rather than nothing, since this could be '' or 0
        return $text;
    }

    if ($vbulletin->options['enablecensor'] AND !empty($vbulletin->options['censorwords']))
    {
        if (empty($censorwords))
        {
            $vbulletin->options['censorwords'] = preg_quote($vbulletin->options['censorwords'], '#');
            $censorwords = preg_split('#[ \r\n\t]+#', $vbulletin->options['censorwords'], -1, PREG_SPLIT_NO_EMPTY);
        }

        foreach ($censorwords AS $censorword)
        {
            if (substr($censorword, 0, 2) == '\\{')
            {
                if (substr($censorword, -2, 2) == '\\}')
                {
                    // prevents errors from the replace if the { and } are mismatched
                    $censorword = substr($censorword, 2, -2);
                }

                // ASCII character search 0-47, 58-64, 91-96, 123-127
                $nonword_chars = '\x00-\x2f\x3a-\x40\x5b-\x60\x7b-\x7f';

                // words are delimited by ASCII characters outside of A-Z, a-z and 0-9
                $text = preg_replace(
                    '#(?<=[' . $nonword_chars . ']|^)' . $censorword . '(?=[' . $nonword_chars . ']|$)#si',
                    str_repeat($vbulletin->options['censorchar'], vbstrlen($censorword)),
                    $text
                );
            }
            else
            {
                $text = preg_replace("#$censorword#si", str_repeat($vbulletin->options['censorchar'], vbstrlen($censorword)), $text);
            }
        }
    }

    // strip any admin-specified blank ascii chars
    $text = strip_blank_ascii($text, $vbulletin->options['censorchar']);

    return $text;
} 


When a message has censored words, this function replaces each character of the word with the censorchar.
I want to change this function to return the $text WITH the censored words, BUT beside each censored word, I want to there is a " " (space).
For example, if I write the censored word "example" I want to return " example".

I know it is droll, but I need it

Thanks in advance and sorry for my bad english.