使用PHP编写对接百度机器翻译API的实例教程

<?php

class BaiduTranslationAPI {
    private $api_key;
    private $secret_key;
    
    public function __construct($api_key, $secret_key) {
        $this->api_key = $api_key;
        $this->secret_key = $secret_key;
    }
    
    public function translate($text, $from = 'auto', $to = 'auto') {
        $url = 'https://fanyi-api.baidu.com/api/trans/vip/translate';
        $salt = rand(10000, 99999);
        $sign = md5($this->api_key . $text . $salt . $this->secret_key);
        
        $params = [
            'q' => $text,
            'from' => $from,
            'to' => $to,
            'appid' => $this->api_key,
            'salt' => $salt,
            'sign' => $sign
        ];
        
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($params));
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        
        $response = curl_exec($ch);
        curl_close($ch);
        
        $result = json_decode($response, true);
        
        return $result['trans_result'][0]['dst'];
    }
}
?>

<?php
require_once 'BaiduTranslationAPI.php';

$api_key = '你的API Key';
$secret_key = '你的Secret Key';

$translator = new BaiduTranslationAPI($api_key, $secret_key);

$text = 'Hello, World!';
$source_language = 'en';
$target_language = 'zh';

$translated_text = $translator->translate($text, $source_language, $target_language);

echo "原文：" . $text . "
";
echo "译文：" . $translated_text . "
";
?>