小程序中内容审核功能的使用(后台使用thinkPHP5.1)

本文包含文本和图片的检测

//接收要检测的文本内容并调用检测方法
public function textCheck(Request $request){
        //内容安全识别  $data['content']为要检测的文本内容
        $data['content'] = htmlspecialchars($request->post('content'));
        $content = $data['content'];
        $output = $this->curlText($content);
　　　　 //只有当$output->errcode==0时审核通过
        if($output->errcode!=0){
            return json(['code' => 500,'msg'=>'内容含有违法违规内容，请修改后再提交']);
            die;
        }
}
//接收要检测的图片并调用检测方法
public function imgCheck(Request $request){
        // 获取表单上传文件 例如上传了001.jpg
        $file = request()->file('file');
        $upload_path = 'uploads';
        $info        = $file->move($upload_path);
        $path        = $info->getSaveName();
        //微信接口校验图片是否违规
        $output = $this->curlImages($path);
        if($output['errcode']!=0){
            return json(['code'=>500,'msg'=>'图片不合规范']);
        }
}
//获取access_token,不能用于获取用户信息的token
    public function getAccessToken(){
        $token_file = json_decode(file_get_contents('token.json'));
        //有效期外才重新获取
        if($token_file->expires_time<time()){
            $appid     = $this->APPID;     //你的小程序appid
            $appsecret = $this->APPSERRET; //你的小程序appsecret
            $url = 'https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=' . $appid . '&secret=' . $appsecret;
            $token_json = file_get_contents($url);
            $token_json = json_decode($token_json);
            $token_file->access_token = $token_json->access_token;
            $token_file->expires_time = time()+7200;
            $access_token = $token_json->access_token;
            file_put_contents('token.json', json_encode($token_file));
        }else{
            $access_token = $token_file->access_token;
        }
        return $access_token;
    }

//检测文本是否含有违禁内容（频率限制：单个 appId 调用上限为 1000 次/分钟，100,000 次/天）
    private function curlText($content){
        $ACCESS_TOKEN = $this->getAccessToken();
        $url = "https://api.weixin.qq.com/wxa/msg_sec_check?access_token=".$ACCESS_TOKEN;
        $file_data = '{ "content":"'.$content.'" }';//$content(需要检测的文本内容，最大520KB)
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL,$url);
        curl_setopt($ch , CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
        curl_setopt($ch , CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $file_data);
        $output = curl_exec($ch);//发送请求获取结果
        $output=json_decode($output,false);
        curl_close($ch);//关闭会话
        return $output;//返回结果
    }
//检测图片是否含有违禁内容
private function curlImages($path){
    $ACCESS_TOKEN = $this->getAccessToken();//自己获取access_token
    $url = "https://api.weixin.qq.com/wxa/img_sec_check?access_token=".$ACCESS_TOKEN;
    $file_path = 'uploads/'.$path;//接受表单文件保存本地的文件地址
    $file_data = array("media"  => new \CURLFile($file_path));
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL,$url);
    curl_setopt($ch , CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
    curl_setopt($ch , CURLOPT_POST, 1);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $file_data);
    $output = curl_exec($ch);//发送请求获取结果
    curl_close($ch);//关闭会话
    $output = json_decode($output,true);
    return $output;
}