try this:
Class Users{
public function get_data() {
$rs = mysql_query("select field1, field2 from users");
$items = array();
$items['rows'] = array();
while($row = mysql_fetch_object($rs)){
$items['rows'][] = array('field1' => $row['field1'], 'field2' => $row['field2']);
}
echo json_encode($items);
}
}
When you will have a json string directly from mysql use CONCAT:
SELECT CONCAT('[',GROUP_CONCAT(CONCAT('{name:',USER.name,''),CONCAT(',email:',USER.email,'}')),']') FROM users WHERE STATUS = 'active' ORDER BY created ASC