Please,help me upload image (pwg.image.addSimple) cURL technology.
Code:

/********************************************************************/
$url = "http://test1.ru/piwigo/ws.php";

$timeout = 5;
if (function_exists('curl_init')) {
        $ch = @curl_init($url);
       
        //@curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
        @curl_setopt($ch, CURLOPT_URL, $url);
        @curl_setopt($ch, CURLOPT_HEADER, 1);
        @curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 30);
        @curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0');
        @curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        @curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
       
        @curl_setopt($ch, CURLOPT_POST, 1);
        @curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        @curl_setopt($ch, CURLOPT_POSTFIELDS,
        array('method' => "pwg.session.login",'username'=> "Keys", 'password'=> "778899"
));// 1

/*@curl_setopt($ch1, CURLOPT_POST, 1);
        @curl_setopt($ch1, CURLOPT_RETURNTRANSFER, true);
        @curl_setopt($ch1, CURLOPT_POSTFIELDS,
        array('method' => "pwg.images.addSimple",
'image' => "test1.ru/Gallery/Cat.jpg",
'category' => "1",
'tags' => "Cat",
'name' => "Cat",
'comment' => "123Cat",
'author' => "John",
'level' => "1"
));*/            // Not Job
       

        $value = @curl_exec($ch);
        $header_length = @curl_getinfo($ch, CURLINFO_HEADER_SIZE);
        $status = @curl_getinfo($ch, CURLINFO_HTTP_CODE);
        $status2 = @curl_getinfo($ch);
        //print_r ($status2);
        @curl_close($value);
        if ($value !== false and $status >= 200 and $status < 400)
                $value = substr($value, $header_length);
    }
    print_r ($value);
/****************************************************************/

pwg.session.login prints 1      
pwg.images.addSimple prints Unknown Method or Access Denied.
Please give an example code php. Thanx,Big thanks.