【PHP】特殊词汇过滤

/**
     * [敏感字过滤]
     * @param    $content     需要验证的字符串
     * @param    $verify      是否提示验证
     * @return    替换后的内容
     */
    function lexVerify($content = '', $verify = false){
        if(!$content) return false;
        $word = require './word.php';                    // 引入敏感字词库
        $lexicon = array_combine($word,array_fill(0,count($word),'*')); // 换字符
        $str = strtr($content, $lexicon);                               // 匹配替换
        return $str;
    }
    //获取项目信息
    public function  insertInfo(){
        //公司信息
        $companyData = $this->request->param();
        if($companyData != ''){
            $data['user_id'] = $companyData['user_id'];
            $data['companyName'] = $this->lexVerify($companyData['companyName']);
            $data['companyType'] = $this->lexVerify($companyData['companyType']);
            $data['companyScale'] = $this->lexVerify($companyData['companyScale']);
            $product = Db::table('wxb_move_infometion')->insert($data);
            if($product){
                $send = ['code'=>200,'msg'=>'公司信息添加成功'];
            }else{
                $send = ['code'=>400,'msg'=>'公司信息添加失败'];
            }
            $this->result($send,200,'数据初始化成功','json');
        }
    }