微软openapi大模型调用function函数联网

### 该功能使用webman2.0开发

#### php环境：8.3.21

#### 调用流程

##### 1、第一次直接调用大模型

##### 2、判断大模型是否返回function标识

##### 3、如果有返回function，那么启动联网博查搜索

#####4、把博查搜索结果丢给大模型，再次返回结果给客户端

 

<br>

## 下面是php类示例

<?php
/**
 * 微软大模型
 * @author zzk
 */

namespace app\util;

use support\Request;
use think\facade\Db;
use GuzzleHttp\Client;

class Openai
{
    private $apiKey = null;
    public function __construct(string $apiKey)
    {
        $this->apiKey = $apiKey;
    }

    /**
     * gpt-4.1-mini对话（不带联网）
     * @param array $message
     * @throws \GuzzleHttp\Exception\GuzzleException
     */
    public function gpt41Mini(array $message){
        $url = 'https://xxxxx.openai.azure.com/openai/deployments/gpt-4.1-mini/chat/completions?api-version=2025-01-01-preview';

        $header = [
            'Content-Type' => 'application/json',
            'api-key' => $this->apiKey
        ];

        $client = new Client();
        $result = $client->post($url,[
            'headers' => $header,
            'json' => $message
        ]);

        return json_decode($result->getBody()->getContents(),true);
    }

    /**
     * gpt-4o-mini对话
     * @param array $message
     * @throws \GuzzleHttp\Exception\GuzzleException
     */
    public function gpt4oMini(array $message){
        //美国东部
        $url = 'https://xxxxxx.azure.com/openai/deployments/o4-mini/chat/completions?api-version=2025-01-01-preview';
        $header = [
            'Content-Type' => 'application/json',
            'Authorization' => "Bearer ".$this->apiKey,
//            'api-key' => $this->apiKey,
        ];

        $client = new Client();
        $result = $client->post($url,[
            'headers' => $header,
            'json' => $message
        ]);

        return json_decode($result->getBody()->getContents(),true);
    }

    /**
     * gpt-4.1-mini对话（带联网）
     * @param array $message
     * @throws \GuzzleHttp\Exception\GuzzleException
     */
    public function gpt41MiniSearch(array $message){
        $sendMessage = $message;
        $sendMessage['functions'] = [
            [
                "name" => "search",
                "description" => "联网搜索",
                "parameters" => [
                    "type" => "object",
                    "properties" => [
                        'query' => [
                            'type' => 'string',
                            'description' => '需要搜索的关键词，例如："2025年苹果全球开发者大会主题'
                        ]
                    ],
                    "required" => ["query"]
                ]
            ]
        ];
        $sendMessage['function_call'] = 'auto';

        $url = 'https://xxxxx.azure.com/openai/deployments/gpt-4.1-mini/chat/completions?api-version=2025-01-01-preview';

        $header = [
            'Content-Type' => 'application/json',
            'api-key' => $this->apiKey
        ];

        $client = new Client();
        $result = $client->post($url,[
            'headers' => $header,
            'json' => $sendMessage
        ]);
//        return json_decode($result->getBody()->getContents(),true);

        $response = json_decode($result->getBody()->getContents(),true);
        $functionCall = $response['choices'][0]['message']['function_call'] ?? null;
        if (!$functionCall) {
            // 模型直接回答，无需搜索
            return $response;
        }

        //联网搜索
        $arguments = json_decode($functionCall['arguments'],true);
        $keyword = $arguments['query'] ?? '';
        $bocha = $this->bochaaiSearch($keyword);
        if($bocha == false){
            return $response;
        }

        $message['messages'][] = $response['choices'][0]['message'];
        $message['messages'][] = [
            'role' => 'function',
            'name' => $functionCall['name'],
            'content' => json_encode($bocha)
        ];

        //再次请求大模型
        $result = $client->post($url,[
            'headers' => $header,
            'json' => $message
        ]);
        return json_decode($result->getBody()->getContents(),true);
    }

    /**
     * 博查搜索
     * 文档：https://bocha-ai.feishu.cn/wiki/RXEOw02rFiwzGSkd9mUcqoeAnNK
     * @param $keyword
     * @return false|mixed
     * @throws \GuzzleHttp\Exception\GuzzleException
     */
    public function bochaaiSearch($keyword){
        if(empty($keyword)){
            return false;
        }
        $url = 'https://api.bochaai.com/v1/web-search';
        $header = [
            'Content-Type' => 'application/json',
            'Authorization' => 'Bearer sk-xxxxxxxx',
        ];

        $json = [
            'query' => $keyword,
            'count' => 20,
            'freshness' => 'oneWeek'
        ];

        $client = new Client();
        $result = $client->post($url,[
            'headers' => $header,
            'json' => $json
        ]);
        return json_decode($result->getBody()->getContents(),true);
    }
}

 

##调用Openapi类方法示例

//发送到微软大模型
        $openapiBody = [
            'max_completion_tokens' => 1000,
            'model' => 'gpt-4.1-mini',
            'messages' => [
                ['role'=>'system','content'=>"# 角色\n你是aido'],
                ['role'=>'user','content'=>'今天天气怎么样'],
            ]
        ];
        $openapi = new Openai('you key');
        $result = $openapi->gpt41MiniSearch($openapiBody);
        $resultCon = $result['choices'][0]['message']['content'] ?? ''; //返回结果文本