else if ($tag == 'get_courses'){
$uid = $_POST['uid'];
$courses = $db->getcourses($uid);

if ($courses) {
$response["success"] = 1;
$response["message"] = "Post Available!";


foreach ($courses as $course) {
    $x = array();
    $x["cname"]  = $course["cname"];
    $x["insname"] = $course["insname"];

    $response["courses"] = array();

    //update our repsonse JSON data
    array_push($response["courses"], $x);
}

// echoing JSON response
echo json_encode($response);

public function getcourses($uid) {
$result = mysql_query("Select * FROM courses WHERE ins_uid = '$uid'")or die(mysql_error());
return mysql_fetch_array($result);

11-01 02:04:36.647    5174-5191/tk.bauannouncement.bau E/JSON﹕ <br />
<b>Warning</b>:  Illegal string offset 'cname' in <b>E:xamphtdocslearn2crack_login_apiindex.php</b> on line <b>59</b><br />
<br />
<b>Warning</b>:  Illegal string offset 'insname' in <b>E:xamphtdocslearn2crack_login_apiindex.php</b> on line <b>60</b><br />
<br />
<b>Warning</b>:  Illegal string offset 'cname' in <b>E:xamphtdocslearn2crack_login_apiindex.php</b> on line <b>59</b><br />
<br />
<b>Warning</b>:  Illegal string offset 'insname' in <b>E:xamphtdocslearn2crack_login_apiindex.php</b> on line <b>60</b><br />
<br />
<b>Warning</b>:  Illegal string offset 'cname' in <b>E:xamphtdocslearn2crack_login_apiindex.php</b> on line <b>59</b><br />
<br />
<b>Warning</b>:  Illegal string offset 'insname' in <b>E:xamphtdocslearn2crack_login_apiindex.php</b> on line <b>60</b><br />
<br />
<b>Warning</b>:  Illegal string offset 'cname' in <b>E:xamphtdocslearn2crack_login_apiindex.php</b> on line <b>59</b><br />
<br />
<b>Warning</b>:  Illegal string offset 'insname' in <b>E:xamphtdocslearn2crack_login_apiindex.php</b> on line <b>60</b><br />
<br />
<b>Warning</b>:  Illegal string offset 'cname' in <b>E:xamphtdocslearn2crack_login_apiindex.php</b> on line <b>59</b><br />
<br />
<b>Warning</b>:  Illegal string offset 'insname' in <b>E:xamphtdocslearn2crack_login_apiindex.php</b> on line <b>60</b><br />
<br />
<b>Warning</b>:  Illegal string offset 'cname' in <b>E:xamphtdocslearn2crack_login_apiindex.php</b> on line <b>59</b><br />
<br />
<b>Warning</b>:  Illegal string offset 'insname' in <b>E:xamphtdocslearn2crack_login_apiindex.php</b> on line <b>60</b><br />
<br />
<b>Warning</b>:  Illegal string offset 'cname' in <b>E:xamphtdocslearn2crack_login_apiindex.php</b> on line <b>59</b><br />
<br />
<b>Warning</b>:  Illegal string offset 'insname' in <b>E:xamphtdocslearn2crack_login_apiindex.php</b> on line <b>60</b><br />
<br />
<b>Warning</b>:  Illegal string offset 'cname' in <b>E:xamphtdocslearn2crack_login_apiindex.php</b> on line <b>59</b><br />
<br />
<b>Warning</b>:  Illegal string offset 'insname' in <b>E:xamphtdocslearn2crack_login_apiindex.php</b> on line <b>60</b><br />
<br />
<b>Warning</b>:  Illegal string offset 'cname' in <b>E:xamphtdocslearn2crack_login_apiindex.php</b> on line <b>59</b><br />
<br />
<b>Warning</b>:  Illegal string offset 'insname' in <b>E:xamphtdocslearn2crack_login_apiindex.php</b> on line <b>60</b><br />
<br />
<b>Warning</b>:  Illegal string offset 'cname' in <b>E:xamphtdocslearn2crack_login_apiindex.php</b> on line <b>59</b><br />
<br />
<b>Warning</b>:  Illegal string offset 'insname' in <b>E:xamphtdocslearn2crack_login_apiindex.php</b> on line <b>60</b><br />
<br />
<b>Warning</b>:  Illegal string offset 'cname' in <b>E:xamphtdocslearn2crack_login_apiindex.php</b> on line <b>59</b><br />
<br />
<b>Warning</b>:  Illegal string offset 'insname' in <b>E:xamphtdocslearn2crack_login_apiindex.php</b> on line <b>60</b><br />
<br />
<b>Warning</b>:  Illegal string offset 'cname' in <b>E:xamphtdocslearn2crack_login_apiindex.php</b> on line <b>59</b><br />
<br />
<b>Warning</b>:  Illegal string offset 'insname' in <b>E:xamphtdocslearn2crack_login_apiindex.php</b> on line <b>60</b><br />
<br />
<b>Warning</b>:  Illegal string offset 'cname' in <b>E:xamphtdocslearn2crack_login_apiindex.php</b> on line <b>59</b><br />
<br />
<b>Warning</b>:  Illegal string offset 'insname' in <b>E:xamphtdocslearn2crack_login_apiindex.php</b> on line <b>60</b><br />
<br />
<b>Warning</b>:  Illegal string offset 'cname' in <b>E:xamphtdocslearn2crack_login_apiindex.php</b> on line <b>59</b><br />
<br />
<b>Warning</b>:  Illegal string offset 'insname' in <b>E:xamphtdocslearn2crack_login_apiindex.php</b> on line <b>60</b><br />
<br />
<b>Warning</b>:  Illegal string offset 'cname' in <b>E:xamphtdocslearn2crack_login_apiindex.php</b> on line <b>59</b><br />
<br />
<b>Warning</b>:  Illegal string offset 'insname' in <b>E:xamphtdocslearn2crack_login_apiindex.php</b> on line <b>60