利用百度ai实现文本和图片审核

摘要：接下来就简单说下怎么做吧首先打开百度开发平台注册一个账号注册账号，进入控制台创建自己的应用，获取和秘钥进入文档页文本审核图像审核文档很详细，实现用户发布内容审核图片审核还是很方便简单的。

之前做平台内容发布审核都是自己构建一套违禁词库，在代码中利用词库判断用户发布的内容，现在可以使用百度ai api完成这个功能。接下来就简单说下怎么做吧：

首先打开百度ai 开发平台 注册一个账号：

注册账号，进入控制台

创建自己的应用，获取apikey 和秘钥

进入文档页 文本审核：

图像审核：

文档很详细，实现用户发布内容审核 图片审核还是很方便简单的。我没有使用官方的sdk，简单的整合了一下作为练手，以下是我简单的代码demo:
图片描述

class Sentive
{
    protected $accessTokenUrl = "https://aip.baidubce.com/oauth/2.0/token";//获取token url
    protected $textUrl = "https://aip.baidubce.com/rest/2.0/antispam/v2/spam";//文本审核url
    protected $imgUrl = "https://aip.baidubce.com/api/v1/solution/direct/img_censor";//图片审核url
    protected $avatarUrl = "https://aip.baidubce.com/rest/2.0/solution/v1/face_audit";//头像审核url

    protected $grant_type;

    protected $client_id;

    protected $client_secret;

    function __construct()
    {
        $this->grant_type = "client_credentials";
        $this->client_id = "xxx";//API Key
        $this->client_secret = "xxx";//Secret Key
    }

    static function request($url = "", $param = "")
    {
        if (empty($url) || empty($param)) {
            return false;
        }

        $postUrl = $url;
        $curlPost = $param;
        $curl = curl_init();//初始化curl
        curl_setopt($curl, CURLOPT_URL, $postUrl);//抓取指定网页
        curl_setopt($curl, CURLOPT_HEADER, 0);//设置header
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);//要求结果为字符串且输出到屏幕上
        curl_setopt($curl, CURLOPT_POST, 1);//post提交方式
        curl_setopt($curl, CURLOPT_POSTFIELDS, $curlPost);
        $data = curl_exec($curl);//运行curl
        curl_close($curl);


        return $data;
    }

    static function request_post($url = "", $param = array(), $type)
    {
        if (empty($url) || empty($param)) {
            return false;
        }

        $postUrl = $url;
        $curlPost = $param;
        $curl = curl_init();
        curl_setopt($curl, CURLOPT_URL, $postUrl);
        curl_setopt($curl, CURLOPT_HEADER, 0);
        // 要求结果为字符串
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
        // post方式
        curl_setopt($curl, CURLOPT_POST, 1);
        curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($curl, CURLOPT_POSTFIELDS, $curlPost);
        if ($type == "text") {
            curl_setopt($curl, CURLOPT_HTTPHEADER, array("Content-Type: application/x-www-form-urlencoded"));
        } else {
            curl_setopt($curl, CURLOPT_HTTPHEADER, array("Content-Type: application/json;charset=utf-8"));
        }
        curl_setopt($curl, CURLINFO_HEADER_OUT, true);
        $data = curl_exec($curl);
        $code = curl_getinfo($curl, CURLINFO_HTTP_CODE);

        if ($code === 0) {
            throw new Exception(curl_error($curl));
        }
        curl_close($curl);
        return $data;
    }

    //获取token
    public function getToken()
    {
        new Redis();
        $post_data["grant_type"] = $this->grant_type;
        $post_data["client_id"] = $this->client_id;
        $post_data["client_secret"] = $this->client_secret;
        $o = "";
        foreach ($post_data as $k => $v) {
            $o .= "$k=" . urlencode($v) . "&";
        }
        $post_data = substr($o, 0, -1);
        $res = self::request($this->accessTokenUrl, $post_data);
        $redis->setkey("filterToken", json_decode($res, true)["access_token"]);
        return json_decode($res, true)["access_token"];
    }

    //文本审核
    public function textVerify($data)
    {
        new Redis();
        $token = $redis->get("filterToken");
        if (empty($token)) {
            $token = $this->getToken();
        }
        $curl = $this->textUrl . "?access_token=" . $token;
        $result = self::request_post($curl, $data, "text");
        return json_decode($result, true);
    }

    //图片审核
    public function imgVerify($img)
    {
        $redis = new Redis();
        $token = $redis->get("filterToken");
        if (empty($token)) {
            $token = $this->getToken();
        }
        $curl = $this->imgUrl . "?access_token=" . $token;
        $bodys = array(
            "image" => $img,
            "scenes" => array("ocr",
                "face", "public", "politician", "antiporn", "terror", "webimage", "disgust",
                "watermark")
        );
        $bodys = json_encode($bodys);
        $result = self::request_post($curl, $bodys, "img");
        return json_decode($result, true);
    }


    //头像审核
    public function avatarVerify($img)
    {
        $redis = new Redis();
        $token = $redis->get("filterToken");
        if (empty($token)) {
            $token = $this->getToken();
        }
        $curl = $this->avatarUrl . "?access_token=" . $token;
        $bodys = array(
            "configId" => "1",
            "images" => $img
        );
        $result = self::request_post($curl, $bodys, "text");
        return json_decode($result, true);
    }

}