Php get email and username

for token :

$ch = curl_init();

$url = 'https://id.twitch.tv/oauth2/token';

$opts = [
CURLOPT_URL            => $url,
CURLOPT_CUSTOMREQUEST  => 'POST',
CURLOPT_RETURNTRANSFER => false

];

$post = [
    'client_id' => $clientID,
    'client_secret' => $sclientID,
    'code' => $token,
    'grant_type' => 'authorization_code',
    'redirect_uri'  => 'http://tworld.lescigales.org/api.php'
        ];

curl_setopt($ch, CURLOPT_POSTFIELDS, $post);
curl_setopt_array($ch, $opts);
$response = curl_exec($ch);

$json_array = json_decode($response, true);
curl_close($ch);

$validate_token = $json_array['access_token'];