json_encode is returning NULL?

Question

For some reason the item \"description\" returns NULL with the following code:

Answer 1

ntd's anwser didn't solve my problem. For those in same situation, here is how I finally handled this error: Just utf8_encode each of your results.

while($row = mysql_fetch_assoc($result)){
    $rows[] = array_map('utf8_encode', $row);
}

Hope it helps!