PHP array_unique not working correctly

I need some help with PHP array_unique. In my code below, it works on every result except Bangladesh, Pakistan, Egypt, and India. Furthermore, it puts a few countries out of order on the top of the list. Help?

$params = array();
$params['in'] = '?';
ini_set("soap.wsdl_cache_enabled", "0");    
$client = new SoapClient("http://apollov-dev.worlddata.com/WrapSystem/services/FactoriesWS?wsdl",array("trace" => 1, "exceptions" => 0));

$monitorResult=$client->allActiveMonitors($params);
$countryList=array();

foreach($monitorResult->response as &$country)
{

    $countryArray=array();


    if(isset($country->accreditedCountries))
    {
    if(strpos($country->accreditedCountries,", ")!== false)
    {
        $countryArray=explode(",",$country->accreditedCountries);
    }
    else
        {$countryArray[]=$country->accreditedCountries;}

        foreach($countryArray as $value)
        {
            if(in_array($value,$countryList)==false)
                {$countryList[]=$value;}
            else {}

        }
    }
    else {}
}



$newArray=$countryList;
asort($newArray);
array_unique($newArray);


foreach($newArray as $record)
{
    echo $record;

    echo "<br/>";
}