field = $field; return true; } public function setDirection($direction) { if (in_array(strtolower($direction), array('asc', 'desc'))) { $this->direction = strtolower($direction); return true; } return false; } public function sorterXML() { $xml = ""; if (isset($this->field)) { $xml .= ""; $xml .= "field."]]>"; $xml .= "".$this->direction.""; $xml .= ""; } return $xml; } }