bb image with curl

private function higlite_img($var) {
        return preg_replace_callback('#\[img\](.*?)\[/img\]#si', function($img) {
                list($width, $height, $type, $attr, $mime) = getimagesize($img[1]);
                if (!in_array($mime, array('image/png', 'image/jpeg', 'image/gif', 'image/x-png'))) {
                    return '<strong class="red">[BROKEN IMAGE]</strong>';
                } else {
                    return '<img src="' . $img[1] . '" alt="' . $this->homeUrl . '" title="' . $this->homeUrl . ' external image" class="image"/>';
                }
        }, $var);
    }