проблемы с добавлением сообщений

if (sizeof($bad)) $cleared = preg_replace($bad, $good, $string);

function bads_filter($string,$replace = 1) {
$badwords = file(FM_BADWORDS);
unset($badwords[0]);
if (count($badwords)) {
$bad = array();
$good = array();
foreach ($badwords as $words) {
list($bw, $gw) = explode('=',$words);
$bad[] = '/(^|\b)' . trim($bw) . '(\b|!|\?|\.|,|$)/i';
$good[] = trim($gw);
}
if (sizeof($bad)) $cleared = preg_replace($bad, $good, $string);
} else {
$cleared = $string;
}
if ($replace === 1) return $cleared;
if ($string != $cleared) return TRUE; //есть плохие слова
}