<?php
/** @desc 大模型编程0X01〡调用 API 完成内容分类 */
declare(strict_types=1);

// 设置 API Key 和 API 地址
$api_key = "sk-xxxxxxxxxxxxxxxxxxxx"; // 替换为你的通义千问 API Key
$base_url = "https://dashscope.aliyuncs.com/compatible-mode/v1/chat/completions";

// 用户反馈数组
$userFeedbacks = [
    "这个手机太贵了，对于我这样的普通消费者不太友好。",
    "客服总是找不到，售后支持根本不给力。",
    "使用起来卡顿，体验很不好。",
    "包装有点损坏，不过可以接受。"
];

// 分类函数
function classify_feedback(string $feedback): string
{
    global $api_key, $base_url;

    // 准备请求数据
    $data = [
        "model" => "qwen-plus",
        "messages" => [
            ["role" => "system", "content" => "You are a helpful assistant for classifying user feedback."],
            ["role" => "user", "content" => "请将以下用户反馈按原因分类：价格过高、售后支持不足、产品使用体验不佳、其他。反馈内容：{$feedback}\n回答格式：分类结果："]
        ],
        "temperature" => 0
    ];

    // 初始化 cURL
    $ch = curl_init($base_url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_POST, true);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
    curl_setopt($ch, CURLOPT_HTTPHEADER, [
        "Authorization: Bearer $api_key",
        "Content-Type: application/json"
    ]);
    curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data));

    // 执行请求
    $response = curl_exec($ch);

    // 检查 cURL 错误
    if ($response === false) {
        $error = curl_error($ch);
        curl_close($ch);
        return "Error: cURL error - $error";
    }

    // 解析响应
    $response_data = json_decode($response, true);
    curl_close($ch);

    // 提取分类结果
    if (isset($response_data['choices'][0]['message']['content'])) {
        return trim($response_data['choices'][0]['message']['content']);
    } else {
        return "Error: Failed to classify feedback";
    }
}

// 遍历并分类所有反馈
foreach ($userFeedbacks as $feedback) {
    $classification = classify_feedback($feedback);
    echo "用户反馈: $feedback\n$classification\n\n";
}