Description:
------------
PHP 5.5.30 (cgi-fcgi)


Test script:
---------------
ini_set('memory_limit', '-1');//no limit for update file on download.


$fp=  fopen("$base.tmp", "wb");
$para=[CURLOPT_FILE=> $fp,
    CURLOPT_BINARYTRANSFER=> FALSE,
    CURLOPT_FOLLOWLOCATION=>true ,
    CURLOPT_RETURNTRANSFER=> FALSE, 
    CURLOPT_CONNECTTIMEOUT=> 10  ];
if(!empty($config['update_config']['max_recv_speed']))
    $para[CURLOPT_MAX_RECV_SPEED_LARGE]=  intval($config['update_config']['max_recv_speed'])*1024;
$o=CallAPI("GET",$url,FALSE,$para);
fclose($fp);

-----------------------------------------------------------------------


function CallAPI($method, $url, $data = false,$para=[])
{
    $curl = curl_init();

    switch ($method)
    {
        case "POST":
            curl_setopt($curl, CURLOPT_POST, 1);
            curl_setopt($curl, CURLOPT_HTTPHEADER, array( 'Expect:' ) );
            if ($data)
                curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
            break;
        case "PUT":
            curl_setopt($curl, CURLOPT_PUT, 1);
            break;
        default:
            if ($data)
                $url = sprintf("%s?%s", $url, http_build_query($data));
    }

    // Optional Authentication:
//    curl_setopt($curl, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
//    curl_setopt($curl, CURLOPT_USERPWD, "username:password");
    
    //progress
    if(function_exists("progress")){
        curl_setopt($curl, CURLOPT_PROGRESSFUNCTION, 'progress');
        curl_setopt($curl, CURLOPT_NOPROGRESS, false);
    }
    
    curl_setopt($curl, CURLOPT_URL, $url);
    
    if(!empty($para)){
        foreach ($para as $k=>$v)
            curl_setopt($curl,$k,$v);
    }
    
    if(empty($para[CURLOPT_RETURNTRANSFER]))
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);

    $result = curl_exec($curl);

    curl_close($curl);

    return $result;
}