//$response = array("error" => FALSE);
if (isset($_POST['br_id']) && isset($_POST['ambulance_no'])) {
    // receiving the post params
    $Br_id = $_POST['br_id'];
    $Ambulance_No = $_POST['ambulance_no'];
    $Ambulance_Name = $_POST['ambulance_name'];
    $Ambulance_Type = $_POST['ambulance_type'];
    $Ambulance_Charges = $_POST['ambulance_charges'];
    $Driver_Name = $_POST['driver_name'];
    $Driver_License_No = $_POST['driver_license_no'];
    $Driver_Lincense_Image = $_POST['driver_lincense_image'];
    $Status = $_POST['status'];
    $Ambulance_Id = $_POST['ambulance_id'];
    if ($_POST['ambulance_id'] == "") {
        // check if patient already exists
        if ($db->isAmbulanceExisted($Ambulance_No)) {
            // Bed already allocated
            $response["response"] = 0;
            $response["message"] = $Ambulance_No . " already exists";
            echo json_encode($response);
        } else {
            // create a new user$Cust_Name, $Cust_Email, $Cust_Phone,$Cust_Address,$Cust_City,$Cust_State
            $user = $db->insertAmbulance($Br_Id, $Ambulance_No, $Ambulance_Name, $Ambulance_Type, $Ambulance_Charges, $Driver_Name, $Driver_License_No, $Driver_Lincense_Image, $Status);
            if ($user) {
                // Bed allocated successfully
                $response["response"] = 1;
                $response["message"] = "Ambulance Details Inserted.";
                echo json_encode($response);
            } else {
                // Bed allocation failed
                $response["response"] = 2;