$input = htmlspecialchars($input);
$inputtype = htmlspecialchars($inputtype);

<?php

header("Content-type: text/plain");

function checkspammers($input){
    //Create a get style array to supply data
    $get = array();
    
    //Loop through the inputs
    foreach($input as $type => $name){
        //If we have a list of names...
        if(is_array($name)){
            //...loop through them...
            foreach($name as $n){
                //...and supply them as a GET array
                $get[] = urlencode($type) . "[]=" . urlencode($n);
            }
        }
        
        //Otherwise...
        else{
            //...just add them.
            $get[] = urlencode($type) . "=" . urlencode($name);
        }
    }
    
    //Load the file, and implode the array.
    $xml = implode('',file("http://www.stopforumspam.com/api?".implode("&",$get)));
    
    //Start new xml parser.
    $p = xml_parser_create();
    
    //Get the xml into an array
    xml_parse_into_struct($p, $xml, $vals, $index);
    
    //Free some memory by clearing the xml parser
    xml_parser_free($p);
    
    //We don't need $index or the $xml any more
    unset($index,$xml);
    
    
    //Prepare the return array
    $return = array('success' => false, 'all' => array("appears" => false, "frequency" => 0, "lastseen" => 0));
        
    //Keep track of the current type
    $type = '';
    
    //ok, formate the results
    foreach($vals as $array){
        
        //Different actions for different tags
        switch(strtolower($array['tag'])){
            //Opening tag
            case "response":
                if($array["type"] == "open"){
                    $return['success'] = $array['attributes']['SUCCESS'];
                }
                break;
                
            //Changing type
            case "type":
                $type = $array['value'];
                $return[$type] = array("appears" => false, "frequency" => 0, "lastseen" => 0);
                break;
            
            //Appears
            case "appears":
                $return[$type]["appears"] = (strtolower($array['value']) == "yes" ? true : false);
                $return["all"]["appears"] = ($return[$type]["appears"] || $return["all"]["appears"]);
                break;
            
            //Frequency
            case "frequency":
                $return[$type]["frequency"]  = $array['value']*1;
                $return["all"]["frequency"] += $return[$type]["frequency"];
                break;
            
            //Last seen
            case "lastseen":
                $return[$type]["lastseen"] = tounix($array['value']);
                $return["all"]["lastseen"] = max($return["all"]["lastseen"], $return[$type]["lastseen"]);
        }
    }
    
    //Save a bit more memory by clearing the vals array
    unset($vals);
    
    //RESPONCE would be better as booleen, not a string
    $return['success'] = ($return['success'] == 'true');
    
    //Now return our array.
    return $return;
}

//Function to convert a time to unix
function tounix($time){
    //Sepparate the timestamp into the time and the date
    $time = explode(' ',$time);
    //Sepparate the date
    $date = explode("-",$time[0]);
    //Sepparate the time
    $time = explode(":",$time[1]);
    
    //Now make the time, note we times by 1 to remove leading zeros, if we don't then php cansometimes use teh octal system instead of decimal.
    return gmmktime($time[0]*1,$time[1]*1,$time[2]*1,$date[1]*1,$date[2]*1,$date[0]*1);
}

//Example function to check in ip
function isaspammer($ip){
    //Get the xml results as an array from teh function above
    $result = checkspammers(array('ip' => $ip));
    //Is he reported?
    if($result['all']['frequency'] > 0){
        //He is a spammer
        return true;
    }else{
        //He is not reported as a spammer
        return false;
    }
}

//Demo of example function
print_r(checkspammers(array('username' => 'Gamserkuserse', 'email' => 'villarrealraymond8@gmail.com', 'ip' => '95.64.11.46')));

?>

    // Form an url to stopforumspam.com, set the flag for JSON format,
    // and add parameters for username= , ip= , and email=
    
    $url = "http://www.stopforumspam.com/api?f=json";
    
    $url .= "&username=" . urlencode($logon);
    
    $ip = $_SERVER['REMOTE_ADDR'];
    if ( $ip != "127.0.0.1" )
        $url .= "&ip=" . $ip;
        
    if ( isset($email) && $email != "none" )
        $url .= "&email=" . urlencode($email);
    
    $data = file_get_contents( $url );
    $result = json_decode( $data, true );

    // The result will be an array structured like this:
    //
    //[
    //    'success' => 1
    //    'username' => [ 'frequency' = x, 'appears' = 0 ]
    //    'email' => [ 'frequency' = x, 'appears' = 0 ]
    //    'ip' => [ 'frequency' = x, 'appears' = 0 ]
    //]
    //
    // the 'appears' field will be set to 1 or true if it appears in the spam database.
    
    // First check for overall success of the query.
    if ( is_array($result) && isset($result['success']) && $result['success'] )
    {
        // Now see if username, email, or ip appears in the database.
    
        function appears( $val, $result )
        {
            if ( isset( $result[$val] ) && is_array( $result[$val] ) && isset( $result[$val]['appears'] ) )
                return $result[$val]['appears'];
            
            return false;
        }
        
        if ( appears( 'username', $result )
            || appears( 'email', $result )
            || appears( 'ip', $result ) )
        {
            // If we get to here, the username, email, or ip has been recorded as being
            // a known spammer in the stopforumspam database.
            
            // So exit or whatever you want - don't allow the registration to proceed.
            
            Fill in stuff here...
            
        }
    }