百度翻译接口类

<?php
/**
 * 百度开发者中心：http://developer.baidu.com/
 * 百度翻译API：http://developer.baidu.com/wiki/index.php?title=docs
 */
class baiduAPI{

    /**
     * $from     : 源语言语种：语言
     * $to         : 目标语言语种：语言代码或auto
     */
    static public function fanyi($value, $from="auto", $to="auto")
    {
        $value_code=urlencode($value);
        #首先对要翻译的文字进行 urlencode 处理
        $appid="Ow83extUdl2zLm94s7ldkw5D";
        #您注册的API Key
        $languageurl = "http://openapi.baidu.com/public/2.0/bmt/translate?client_id=" . $appid ."&q=" .$value_code. "&from=".$from."&to=".$to;
        #生成翻译API的URL GET地址
        $text=json_decode(self::language_text($languageurl));
        $text = isset($text->trans_result) ? $text->trans_result : '';
        return isset($text[0]->dst) ? $text[0]->dst : '';
    }

    #获取目标URL所打印的内容
    static function language_text($url)
    {
        if(!function_exists('file_get_contents')) {
            $file_contents = file_get_contents($url);
        } else {
            $ch = curl_init();
            $timeout = 5;
            curl_setopt ($ch, CURLOPT_URL, $url);
            curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
            curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
            $file_contents = curl_exec($ch);
            curl_close($ch);
        }
        return $file_contents;
    }
}

实例1,（中文翻译英文）

# 定义需要翻译的内容
$title = '你好';

# 验证是否为汉字 ( 兼容gb2312,utf-8 )
if (preg_match("/[\x7f-\xff]/", $title)) {
    $title = baiduAPI::fanyi($title, $from="zh", $to="en");
} else {
    $title = baiduAPI::fanyi($title, $from="en", $to="zh");
    $title = iconv('utf-8', 'gbk', $title);
}

# 结果输出  Hello
echo $title;
exit;

实例2,（英文翻译中文）

# 定义需要翻译的内容
$title = 'Hello';

# 验证是否为汉字 ( 兼容gb2312,utf-8 )
if (preg_match("/[\x7f-\xff]/", $title)) {
    $title = baiduAPI::fanyi($title, $from="zh", $to="en");
} else {
    $title = baiduAPI::fanyi($title, $from="en", $to="zh");
    $title = iconv('utf-8', 'gbk', $title);
}

# 结果输出  您好
echo $title;
exit;