PHP　百度图片搜索功能API接口开发

傷城~ 2022-11-18 04:57 624阅读 0赞

首先创建应用：  
[https://console.bce.baidu.com/ai/?\_=&fromai=1\#/ai/imagesearch/overview/index][https_console.bce.baidu.com_ai_fromai_1_ai_imagesearch_overview_index]

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjQzMzk3MA_size_16_color_FFFFFF_t_70]  
会有２参数要用到：![在这里插入图片描述][20210412182344414.png]  
然后申请建库  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjQzMzk3MA_size_16_color_FFFFFF_t_70 1]

随便传几张图片到里面。

## 接口：ImageIdentification.php ##

<?php
    /** * Created by PhpStorm. * User: Administrator * Date: 2021/4/12 * Time: 15:07 */
    
    namespace app\common;
    
    /** * AI图片搜索 * Class ImageIdentification * @package app\common */
    class ImageIdentification
    { 
    
        /** * @var string */
        protected static $client_id;
    
        /** * @var string */
        protected static $client_secret;
    
        /** * 构造函数 * ImageIdentification constructor. */
        protected static function construct()
        { 
            self::$client_id = 'PM4vfxjGTZt8SQBg0YhAtNDb';
            self::$client_secret = 'secret';
    
        }
    
        /** * @param $path * @param string $name * @param int $id * @return string * @throws \ImagickException */
        public static function addImageDent($path, $name = '杜小明', $id = 1)
        { 
            $path = self::reduceSize($path);
            $token = static::getToken();
            $url = 'https://aip.baidubce.com/rest/2.0/image-classify/v1/realtime_search/similar/add?access_token=' . $token;
            $img = file_get_contents($path);
            $img = base64_encode($img);
            $bodys = array(
                'brief' => '{"name":"' . $name . '", "id":"' . $id . '"}',
                'image' => $img,
                'tags' => "1,1"
            );
            $res = self::request_posts_http($url, $bodys);
            $res = JD($res);
            unlink($path);
            return isset($res['cont_sign']) ? $res['cont_sign'] : 'error';
        }
    
    
        /** * 搜索 * @param $path * @return array * @throws \ImagickException */
        public static function searchImageDent($path)
        { 
            #搜索
            $path = self::reduceSize($path);
            $token = static::getToken();
    
            $url = 'https://aip.baidubce.com/rest/2.0/image-classify/v1/realtime_search/similar/search?access_token=' . $token;
            $img = file_get_contents($path);
            $img = base64_encode($img);
            $bodys = array(
                'image' => $img,
                'pn' => 0,#从第0位开始搜
                'rn' => 1#搜索的长度，这里只搜索一张图片，可以设置多点
            );
            $res = self::request_posts_http($url, $bodys);
            $res = JD($res);
            $cont_sign = [];
            if ($res['result_num']) { 
                foreach ($res['result'] as $re) { 
                    $cont_sign[] = $re['cont_sign'];
                }
            }
    
            return $cont_sign;
        }
    
        /** * @param $src_img * @return string * @throws \ImagickException */
        protected static function reduceSize($src_img)
        { 
            $ai = new \Imagick($src_img);
            $ai->thumbnailImage(300, 300, true);#如果给定第三个参数true 的话则按最大边300处理
            $path = ROOT_PATH . str_shuffle(md5(time())) . '.jpg';
            $ai->writeImage($path);
            #$path = self::reduceQuality($path);
    
            return $path;
    
        }
    
        /** * @param $src_img * @param int $quality * @param string $dest_img * @return string * @throws \ImagickException */
        protected static function reduceQuality($src_img, $quality = 70, $dest_img = '')
        { 
            if (!$dest_img) { 
                $dest_img = $src_img;
            }
            $imagick = new \Imagick();
            $imagick->readImage($src_img);
            $imagick->setImageCompression(\Imagick::COMPRESSION_JPEG);
            $imagick->setImageCompressionQuality($quality);
            $imagick->writeImage($dest_img);
            return $dest_img;
        }
    
        /** * @param string $url * @param string $param * @return bool|string */
        protected static function request_posts_http($url = '', $param = '')
        { 
            if (empty($url) || empty($param)) { 
                return false;
            }
    
            $postUrl = $url;
            $curlPost = $param;
            // 初始化curl
            $curl = curl_init();
            curl_setopt($curl, CURLOPT_URL, $postUrl);
            curl_setopt($curl, CURLOPT_HEADER, 0);
            // 要求结果为字符串且输出到屏幕上
            curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
            curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
            // post提交方式
            curl_setopt($curl, CURLOPT_POST, 1);
            curl_setopt($curl, CURLOPT_POSTFIELDS, $curlPost);
            // 运行curl
            $data = curl_exec($curl);
            curl_close($curl);
    
            return $data;
        }
    
        /** * @param string $url * @param string $param * @return bool|string */
        protected static function request_post($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;
        }
    
    
        /** * @return string */
        protected static function getToken()
        { 
            self::construct();
            $url = 'https://aip.baidubce.com/oauth/2.0/token';
            $post_data['grant_type'] = 'client_credentials';
            $post_data['client_id'] = self::$client_id;
            $post_data['client_secret'] = self::$client_secret;
            $o = "";
            foreach ($post_data as $k => $v) { 
                $o .= "$k=" . urlencode($v) . "&";
            }
            $post_data = substr($o, 0, -1);
            $res = self::request_post($url, $post_data);
            $res = JD($res);
            return isset($res['access_token']) ? $res['access_token'] : 'error';
        }
    
    
    }

## 调用方法： ##

ImageIdentification::searchImageDent($path)

[https_console.bce.baidu.com_ai_fromai_1_ai_imagesearch_overview_index]: https://console.bce.baidu.com/ai/?_=&fromai=1#/ai/imagesearch/overview/index
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjQzMzk3MA_size_16_color_FFFFFF_t_70]: /images/20221022/a03a73452c9e4b9894573e8ae495c026.png
[20210412182344414.png]: /images/20221022/679c25330954474abdc0473c3c6e17c6.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjQzMzk3MA_size_16_color_FFFFFF_t_70 1]: /images/20221022/c15db3c0f6014c829a9194ae85829a2b.png