如何利用ChatGPT PHP开发智能预订助手

<?php
// 您需要将API密钥替换成您在OpenAI官网上获取的密钥
$api_key = 'your_api_key';

// 用户输入的消息
$messages = [
    ['role' => 'system', 'content' => '你好'],
    ['role' => 'user', 'content' => '我想预订酒店'],
    ['role' => 'assistant', 'content' => '好的，请告诉我您的入住日期和离开日期'],
    ['role' => 'user', 'content' => '我想从明天入住到下周三'],
    ['role' => 'assistant', 'content' => '好的，请稍等，我来帮您查询'],
];

// 请求ChatGPT模型的API
$response = http_post("https://api.openai.com/v1/chat/completions", json_encode([
    'messages' => $messages,
    'max_tokens' => 50,
]));

// 解析API返回的回复
$reply = json_decode($response, true)['choices'][0]['message']['content'];

// 输出回复消息
echo $reply;

// 发送HTTP POST请求
function http_post($url, $data)
{
    $ch = curl_init($url);
    curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
    curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_HTTPHEADER, [
        'Authorization: Bearer ' . $api_key,
        'Content-Type: application/json',
    ]);
    $result = curl_exec($ch);
    curl_close($ch);
    return $result;
}
?>