使用PHP开发实现百度文心一言API接口的权限管理和认证方式

<?php

// 百度文心一言API接口地址
$url = "https://aip.baidubce.com/rpc/2.0/nlp/v1/sentiment_classify";

// API Key和Secret Key
$apiKey = "your_api_key";
$secretKey = "your_secret_key";

// 请求参数
$params = array(
    "text" => "这是一句话"
);

// 计算签名
$timestamp = time();
$nonce = uniqid();
$signature = md5($apiKey . $timestamp . $nonce . $secretKey);

// 设置请求头
$headers = array(
    "Content-Type: application/json",
    "charset: utf-8",
    "apikey: " . $apiKey,
    "signature: " . $signature,
    "timestamp: " . $timestamp,
    "nonce: " . $nonce
);

// 发起HTTP请求
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($params));
$result = curl_exec($ch);
curl_close($ch);

// 处理响应结果
$data = json_decode($result, true);
if(isset($data['error_code'])) {
    echo "请求失败：" . $data['error_msg'];
} else {
    echo "情感极性：" . $data['items'][0]['sentiment'];
}

?>