$buffer .= "".$description."";Заменить на :
$category = $cat_info[$row['category']]['name'];
$buffer .= "".$description."
Kategori : {$category}";$buffer .= "".$description."";Заменить на :
$category = $cat_info[$row['category']]['name'];
$buffer .= "".$description."
Kategori : {$category}";