/**
  * returns the URL of the script given in param if it exists, false otherwise
  *
  * @param string $script
  * @return string
  */
 public function getUrl($script)
 {
     if (!array_key_exists($script, $this->url)) {
         $msg = "L'url pour le script {$script} n'existe pas ou n'est pas chargée. Vérifiez le paramétrage.";
         insertLogKwixo(__METHOD__ . ' : ' . __LINE__, $msg);
         return false;
     }
     return $this->url[$script];
 }
 /**
  * connects to a server, reaches the path and returns the response if connexion succeed, false otherwise
  *
  * @param string $header request header
  * @return mixed
  */
 function connect($header)
 {
     //connects with SSL protocol if secure connection asked, HTTP protocol otherwise
     if ($this->is_ssl) {
         $socket = fsockopen('ssl://' . $this->host, $this->port, $this->errno, $this->errstr, KwixoSocket::TIMEOUT);
     } else {
         $socket = fsockopen($this->host, $this->port);
     }
     //if connection established
     if ($socket !== false) {
         $res = '';
         //sends header and reads response
         if (@fputs($socket, $header)) {
             while (!feof($socket)) {
                 $res .= fgets($socket, 128);
             }
         } else {
             insertLogKwixo(__METHOD__ . ' : ' . __LINE__, "Envoi des données impossible sur : " . $host);
             $res = false;
         }
         //closes the connexion
         fclose($socket);
     } else {
         //if connection failed, log
         insertLogKwixo(__METHOD__ . ' : ' . __LINE__, "Connexion socket impossible sur l'hôte {$host}. Erreur " . $this->errno . " : " . $this->errstr);
         $res = false;
     }
     //return the response
     return $res;
 }
 * @return string
 * KO: Kwixo is not available
 * KC: Kwixo credit is not available
 * OK: each payment option is available
 */
  protected function getServiceStatus($mobile = false)
  {
      if ($mobile) {
          $statusvar = 'mstatus';
      } else {
          $statusvar = 'status';
      }
      //connects and get the response of the ws Availabe
      $con = new KwixoSocket($this->getUrlavailable());
      $res = $con->send();
      //return 'KO' if the connexion failed
      if ($res === false || !isXMLstringKwixo($res)) {
          return 'KO';
      }
      //builds an KwixoXMLElement to parse the server response
      $dom_response = new DOMDocument();
      $dom_response->loadXML($res);
      $element_online = $dom_response->getElementsByTagName('online')->item(0);
      //returns the attribute containing the server status
      return $element_online->getAttribute($statusvar);