PHP 谷歌翻译类API 接口

谷歌翻译类：GoogleTranslate.php

<?php
/**
 * Created by PhpStorm.
 * User: Administrator
 * Date: 2021/3/26
 * Time: 15:07
 */

namespace app\common;

/**
 * 谷歌翻译类
 * Class GoogleTranslate
 * @package app\common
 */
class GoogleTranslate
{

    /**
     * @param string $text 翻译原文
     * @param string $source 源语言
     * @param string $target 目标语言
     * @return string
     */
    public static function api($text = '', $source = 'en', $target = 'zh-CN')
    {
        require_once ROOT_PATH . 'vendor/GoogleTranslateClass-master/google.translate.class.php';
        $trans = new \GoogleTranslate();
        if (!$text) {
            $text = 'GoogleTranslate';
        }
        $result = $trans->translate($source, $target, $text, $type = 'cn');
        return $result;
    }
}

调用方法：

GoogleTranslate::api('goods')

基类google.translate.class.php：

<?php
class GoogleTranslate
{

	/**
     * Retrieves the translation of a text
     *
     * @param string $source
     *            Original language of the text on notation xx. For example: es, en, it, fr...
     * @param string $target
     *            Language to which you want to translate the text in format xx. For example: es, en, it, fr...
     * @param string $text
     *            Text that you want to translate
     *
     * @return string a simple string with the translation of the text in the target language
     */
	public static function translate($source, $target, $text, $type)
	{
		// Request translation
		$response = self::requestTranslation($source, $target, $text, $type);

		// Clean translation
		$translation = self::getSentencesFromJSON($response);

		return $translation;
	}

	/**
     * Internal function to make the request to the translator service
     *
     * @internal
     *
     * @param string $source
     *            Original language taken from the 'translate' function
     * @param string $target
     *            Target language taken from the ' translate' function
     * @param string $text
     *            Text to translate taken from the 'translate' function
		 * @param string $type
		 *            'intl' use `translate.google.com` API, 'cn' use 'translate.google.cn' API. (default use translate.google.com)
     *
     * @return object[] The response of the translation service in JSON format
     */
	protected static function requestTranslation($source, $target, $text, $type='intl')
	{
		if($type=='intl'){//use 'translate.google.com' API
			$host='translate.google.com';
		}else{//use 'translate.google.cn' API
			$host='translate.google.cn';
		}

		// Google translate URL
		$url = "https://{$host}/translate_a/single?client=at&dt=t&dt=ld&dt=qca&dt=rm&dt=bd&dj=1&hl=es-ES&ie=UTF-8&oe=UTF-8&inputm=2&otf=2&iid=1dd3b944-fa62-4b55-b330-74909a99969e";

		$fields = array(
			'sl' => urlencode($source),
			'tl' => urlencode($target),
			'q' => urlencode($text)
		);

		// URL-ify the data for the POST
		$fields_string = "";
		foreach ($fields as $key => $value) {
			$fields_string .= $key . '=' . $value . '&';
		}

		rtrim($fields_string, '&');

		// Open connection
		$ch = curl_init();

		// Set the url, number of POST vars, POST data
		curl_setopt($ch, CURLOPT_URL, $url);
		curl_setopt($ch, CURLOPT_POST, count($fields));
		curl_setopt($ch, CURLOPT_POSTFIELDS, $fields_string);
		curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
		curl_setopt($ch, CURLOPT_ENCODING, 'UTF-8');
		curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
		curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
		curl_setopt($ch, CURLOPT_USERAGENT, 'AndroidTranslate/5.3.0.RC02.130475354-53000263 5.1 phone TRANSLATE_OPM5_TEST_1');

		// Execute post
		$result = curl_exec($ch);

		// Close connection
		curl_close($ch);

		return $result;
	}

	/**
     * Dump of the JSON's response in an array
     *
     * @param string $json
     *            The JSON object returned by the request function
     *
     * @return string A single string with the translation
     */
	protected static function getSentencesFromJSON($json)
	{
		$sentencesArray = json_decode($json, true);
		$sentences = "";

		foreach ($sentencesArray["sentences"] as $s) {
			$sentences .= isset($s["trans"]) ? $s["trans"] : '';
		}

		return $sentences;
	}
}