PHP StopForumSpam integration example

//stopforumspam.php
<?php
/**
 * checkStopForumSpam()
 * 
 * @param mixed $email
 * @param mixed $ipse
 * @return void
 */
function checkStopForumSpam($email,$ipse) {
 libxml_use_internal_errors(true);
 @$xml_string = file_get_contents('http://www.stopforumspam.com/api?ip='.$ipse.'&email='.$email.'');
 if(!$xml_string) {
  echo "Failed loading document. Your host can make remote connection with the DB.";
  foreach(libxml_get_errors() as $error) {
  }
  die('Sorry, your registration could not be processed.');
 } else {
  $xml_string = file_get_contents('http://www.stopforumspam.com/api?ip='.$ipse.'&email='.$email.'');
  $xml = new SimpleXMLElement($xml_string);
  if($xml->appears == 'yes') {
   echo "Sorry, your registration could not be processed.";
   $emailto = "Email: ".$email." - IP: ".$ipse."r";
   $file = "banlog.log";
   @$fh = fopen($file,'a');
   @fwrite($fh,$emailto."n");
   @fclose($fh);
   die();
  }
 }
}
?>

//usage
require_once ('stopforumspam.php');
$ipse = $_SERVER['REMOTE_ADDR'];
$email = htmlspecialchars($_POST['email']);
checkStopForumSpam($email,$ipse);