google在线翻译php代码

<?php  
    /* Google翻译PHP接口 
   / * 注意：如果翻译文本为UTF-8编码，则要删去mb_convert_encoding函数 
     */ 
       
    class Google_API_translator {   
        public $url = "/translate_t";  
        public $text = "";//翻译文本  
         public $out = ""; //翻译输出
         public $lang_src = "";//要翻译的语言
 public $lang_des = "";//翻译成的语言
          
        function setText($text){  
            $this->text = $text;  
        }  
  
  function setLang($lang_src,$lang_des){
   $this->lang_src = $lang_src;
   $this->lang_des = $lang_des;
  }
          
        function translate() {   
            $this->out = "";   
              
            $gphtml = $this->postPage($this->url, $this->text,$this->lang_src,$this->lang_des);   
            $out = substr($gphtml, strpos($gphtml, "<div id=result_box dir=/"ltr/">"));  
            $out = substr($out, 29);  
            $out = substr($out, 0, strpos($out, "</div>"));  
              
            $this->out = $out;  
            return $this->out;   
        }   
          
        function postPage($url, $text,$lang_src,$lang_des) {   
            $html ='';   
              
            if($url != "" && $text != ""&&$lang_src != ""&&$lang_des != "") {   
                $ch = curl_init($url);   
                curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);   
                curl_setopt($ch, CURLOPT_HEADER, 1);   
                curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);   
                curl_setopt($ch, CURLOPT_TIMEOUT, 15);   
                  
                $fields = array('hl=zh-CN', 'langpair='.$lang_src.'|'.$lang_des, 'ie=UTF-8','text='.urlencode(mb_convert_encoding($text, 'UTF-8', 'GB2312')));  
                curl_setopt($ch, CURLOPT_POST, 1);  
                curl_setopt($ch, CURLOPT_POSTFIELDS, implode('&', $fields));                                                       
                  
                $html = curl_exec($ch);   
                if(curl_errno($ch)) $html = "";   
                curl_close ($ch);   
            }   
            return $html;   
        }   
    }   
      
  
   ?>