php如何替换word内容

require_once './extend/PHPWord/PHPWord.php';
require_once './extend/PHPWord/PHPWord/IOFactory.php';
$PHPWord =  new PHPWord();
$loadtemplate = $PHPWord->loadTemplate('/'.$template.'.docx';);//加载word文件
$loadtemplate->setValue('account', '123');//替换account内容为123
$loadtemplate->setValue('password', '456');//替换password内容为456
$loadtemplate->save('/yourpath/'.md5(time()) .'.docx');//存储位置

public function setValue($search, $replace, $limit=-1) {
        if(substr($search, 0, 1) !== '{' && substr($search, -1) !== '}') {
            $search = '{'.$search.'}';
        }
        
        if(!is_array($replace)) {
            // $replace = utf8_encode($replace);
            //$replace = iconv( 'gbk','utf-8', $replace);
            $replace = str_replace("\n","<w:br />",$replace);
        }
        
        preg_match_all('/\{[^}]+\}/', $this->_documentXML, $matches);
        foreach ($matches[0] as $k => $match) {
            $no_tag = strip_tags($match);
            if ($no_tag == $search) {
                $match = '{'.$match.'}';
                $this->_documentXML = preg_replace($match, $replace, $this->_documentXML, $limit);
                if ($limit == 1) {
                    break;
                }
            }
        }
    }