Title rewritten to: "Undefined variable in PHP array"

Question

I am trying to get the country code using php. I use the following code, but get this warning:

Undefined index: country_code

function getIP($ip) {
    $curl = curl_init();

    curl_setopt_array($curl, array(
    CURLOPT_URL => "http://ipwho.is/".$ip,
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_ENCODING => "utf8",
    CURLOPT_MAXREDIRS => 10,
    CURLOPT_TIMEOUT => 30,
    CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
    CURLOPT_CUSTOMREQUEST => "GET",
    CURLOPT_HTTPHEADER => array(
        "accept: application/json",
        "content-type: application/json"
    ),
    ));

    $response = curl_exec($curl);
    $err = curl_error($curl);
    //print_r($response);
    curl_close($curl);

    if ($err) {
    return "cURL Error #:" . $err;
    } else {
    return $response;
    }
}

function isIndo($ip) {
    $ip = getIP($ip);

    $info = json_decode($ip, true);
    //print_r($info);
    if( $info['country_code'] == "ID" ) {
        return true;
    } else {
        return false;
    }
}

What went wrong?

Answer 1

Have you tried isset()?

Before accessing an array key, try to check if it exists

if( isset($info['country_code']) && $info['country_code'] == "ID" ) {
    return true;
}

Link to isset()