Is this possible in php 5.4 with the new traits feature?

trait.php

<?php

/**
 * Is this possible in php5.4 using traits?
 */

trait Hashmap {

  public function set($key, $val) {
    $this->data[$key] = $val;
  }
  

  public function get($key) {
    return $this->data[$key];
  }
}

trait HashLogger {
  
  public function log($msg) {
    // ...
  }

  public function set($key, $val) {
    $this->log("{$key} has been set to {$val}");
    parent::set($key, $val);
  }

}


class Config {
  
  use HashMap;
  use HashLogger;

  public function set($key, $val) {
    parent::set($key, $val);
    $this->clearCache();
  }

  protected function clearCache() {
    // ...
  }
}