Pre Tags

/**
 * Parses [code] [/code] in a post, private message or signature.
 *
 * @since version 2.0
 * @param string $text The text to parse.
 * @return string Returns the parsed string.
 */
function parse_code($text)
{
    $ubb = array('[code]', '[/code]');
    $html = array('<pre>', '</pre>');

    $text = str_ireplace($ubb, $html, $text);

    preg_match_all('`\<pre\>(.+?)\<\/pre\>`', $text, $matches);
    foreach($matches[0] as $x => $value)
    {
        $temp = str_replace("<br />", "", $value);
        $temp = str_replace("\t", "&nbsp;&nbsp;&nbsp;&nbsp;", $temp);
        $text = str_replace($value, $temp, $text);
    }

    return $text;
}