php使用curl函數往服務器put文件

       $headers = array(
            "Expect: 100-continue",
            "Authorization: Basic " . base64_encode("{$user}:{$password}"),
        );
        $url = "http://{$host}:{$port}/path?var1=value1%26var2=value2";
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_HEADER, 0);
        curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
        curl_setopt($ch, CURLOPT_TIMEOUT, 600); 
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);//把結果返回給變量
        curl_setopt($ch, CURLOPT_VERBOSE, '1');//輸出debug信息
        curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);//支持跳轉
        curl_setopt($ch, CURLOPT_MAXREDIRS, 5);//最多跳轉次數
        curl_setopt($ch, CURLOPT_URL, $url );
        curl_setopt($ch, CURLOPT_PUT, true );//提交方式
        $fp = fopen($file, 'r');
        $len = filesize($file);
        curl_setopt($ch, CURLOPT_INFILE, $fp );//設置上傳文件的FILE指針
        curl_setopt($ch, CURLOPT_INFILESIZE, $len );//設置上傳文件的大小

        $out = curl_exec($ch);
        $errno = curl_errno($ch);
        fclose($fp);
        curl_close($ch);