<?php
 
require_once 'jsonrpcphp/JsonRPCClient.php';
 
define( 'LS_BASEURL', 'https://www.myServer.de/limesurvey');  // adjust this one to your actual LimeSurvey URL
define( 'LS_USER', 'username' );
define( 'LS_PASSWORD', 'password' );
 
$myJSONRPCClient = new \org\jsonrpcphp\JsonRPCClient( LS_BASEURL.'/index.php/admin/remotecontrol' );
 
// receive session key
$sessionKey= $myJSONRPCClient->get_session_key( LS_USER, LS_PASSWORD );
 
if(is_array($sessionKey))
{
    header("Content-type: application/json");
    echo json_encode($sessionKey);
    die();
}
 
// Here I use GET parameters
$survey_id = $_GET['SID'];
$firstName = $_GET['NOMBRE'];
$lastName  = $_GET['APELLIDO'];
$email     = $_GET['EMAIL'];
 
$atokenParams = array("email"=>$email,"lastname"=>$lastName,"firstname"=>$firstName,"token"=>$token,"emailstatus"=>"OK");
$aParticipantData=array($atokenParams);
$bCreateToken = true;
 
// Create the token in survey
$newToken = $myJSONRPCClient->add_participants( $sessionKey, $survey_id, $aParticipantData, $bCreateToken);
 
// If token successfully created, redirect to survey
if(isset($newToken[0]['tid']) AND isset($newToken[0]['token'])) {
    $link='www.myServer.de/limesurvey/index.php/'.$survey_id.'?token='.$newtoken[0]['token'];
    // Here you may send the link to the participant
}
 
// Otherwise, display errors
else if (isset($newToken['status'])) {
    echo $newToken['status'];
}
else {
    echo '<br />';
    echo 'Error: '.$newToken[0]['errors']['token'][0];
}
 
// release the session key
$myJSONRPCClient->release_session_key( $sessionKey );
?>