$url = "http://translate.google.cn/translate_a/single";
function curlData($url, $type = 'GET', $data = array()){
    $ch = curl_init();
    if(empty($url) || ! $ch)    return false;
    if(strtoupper($type) == 'POST'){
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($data));
    }else{
        $url .= '?' . http_build_query($data);
    }
         $user_agent = "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/33.0.1750.146 Safari/537.36";
    curl_setopt($ch, CURLOPT_USERAGENT,$user_agent);
    curl_setopt($ch,CURLOPT_HTTPHEADER,array("Content-type:html/text;charset=utf-8")); //设置响应头
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
    curl_setopt($ch, CURLOPT_HEADER, 0);
    curl_setopt($ch, CURLOPT_TIMEOUT, 30);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
    $result = curl_exec($ch);
    curl_close($ch);
    return $result;
}

$data1['client'] = 'gtx';
$data1['dt'] = 't';
$data1['dj'] = 1;
$data1['ie'] = 'UTF-8';
$data1['sl'] = 'auto';
$data1['tl'] = 'zh-CN';
$data1['q'] = $_GET['q'] ;
$content = curlData($url,'get',$data1);

echo $content;