<?php error_reporting(E_ALL); ini_set('display_errors', '1'); require_once "../src/Phois/Whois/Whois.php"; if (isset($_POST['dominio'])) { # code... $sld = $_POST['dominio']; $domain = new Whois($sld); $whois_answer = $domain->info(); echo $whois_answer; if ($domain->isAvailable()) { echo "Domain is available\n"; } else { echo "Domain is registered\n"; } ?> <form action="" method="POST"> <input type="text" name="dominio"> <input type="submit"> </form> <?php } else { ?> <form action="" method="POST"> <input type="text" name="dominio"> <input type="submit"> </form> <?php }