$email = "test@example.com";
$key = "PUT YOUR API KEY HERE";
$url = "https://app.emaillistverify.com/api/verifEmail?secret=".$key."&email=".$email;
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true );
$response = curl_exec($ch);
echo $response;
curl_close($ch);