อยากจะถามเกี่ยวกับการ gen เอกสาร word ขอคำแนะนำ

    /**
     * Set a Template value
     * 
     * @param mixed $search
     * @param mixed $replace
     */
    public function setValue($search, $replace) {
        if(substr($search, 0, 2) !== '${' && substr($search, -1) !== '}') {
            $search = '${'.$search.'}';
        }
        
//        if(!is_array($replace)) {
//            $replace = utf8_encode($replace);
//        }
        
        $this->_documentXML = str_replace($search, $replace, $this->_documentXML);
    }

	public function clearVar()
	{
		$this->_documentXML = preg_replace('/\$\{[^\}]+\}/', '', $this->_documentXML);
	}