/**
  * Set a newline into log
  * @access private
  * @param string $message 
  * @uses Log_Voipzilla::save() Save a newline in log
  */
 private function _log($message)
 {
     // Tranforming multiple lines in just one
     $message = preg_replace("/(\r\n|\n|\r)+/", " ", $message);
     $res = Log_Voipzilla::save("[MESSAGE]" . $message);
     if ($this->verbose) {
         echo $res;
     }
 }
 /**
  * Saves a newline log
  *
  * @access public
  * @param string $log what will be writen
  * @return string|NULL what was writed or NULL if wasn't possible open the file
  */
 static function save($log)
 {
     global $config;
     self::$logConf = $config["log"]["structure"];
     $file = dirname(__FILE__) . "/" . self::$logConf["directory"] . date(self::$logConf["name-format"]) . self::$logConf["extension"];
     @($file = fopen($file, "a"));
     if (!$file) {
         return NULL;
     }
     $prefix = date(self::$logConf["log-prefix"]);
     $write = $prefix . $log . "\n";
     fwrite($file, $write);
     fclose($file);
     return $write;
 }