<form action="" method="post">
  Name: <br><input name="example" type="text" /><br>
  <input name="submit" type="submit" />
</form>

<?php
  if (isset($_POST['submit'])) {
  $example = $_REQUEST['example'];
  $result = $customcontact->lookupByName($example); /** API PHP Library */
  print_r($result);
  }
?>