public function __call($method, $arguments)
{
$renamed_method = lcfirst(str_replace('_', '', ucwords($method, '_')));
if (method_exists($this, $renamed_method)) {
return call_user_func_array([$this, $renamed_method], $arguments);
}
trigger_error('Fatal error: Call to undefined method PHPSandbox::' . $method, E_ERROR);
return null;
}