javascript - jQuery dataTables with Codeigniter and sAjaxSource -

i using datatables codeigniter , have problem. getting message:

array_push() expects parameter 1 array, null given 

and result {"aadata":null}

i want this: { "aadata": [ ["test","test","test"] ] }

code:

$result =  $this->lol_model->get();  //result = array ( [0] => stdclass object ( [test] => 12345  [test2] => 1842 07 03 [test3] => lol ) )        $aadata = array();      foreach($result $row) {             array_push($json["aadata"],array(                 $row->test,                 $row->test2,                 $row->test3          ));         }   echo json_encode($json); 

you cannot define key '["aadata"]' when using array_push. however, can use:

$json["aadata"]=array(             $row->test,             $row->test2,             $row->test3      ); 

see post also: array_push() key value pair