[code]

function save_web_image($url, $saveName) {
    if (strstr($url, "//")) {
        $a = explode("//", $url);
        $url = $a[1];
    }
    $a = explode("/", $url);
    $host = $a[0];
    $path = "";
    for ($i = 1; $i < count($a); $i++)
        $path .= "/".$a[$i];
   
    $fp = fsockopen($host, 80, $errno, $errstr, 10);

    if ($fp) {
        $send = "GET $path HTTP/1.1\r\n";
        $send.= "Host: $host\r\n";
        $send.= "Connection: Close\r\n\r\n";
        fwrite($fp, $send);
        $content = "";
        while (!feof($fp))
            $content .= fread($fp, 1024);
        $content = substr($content, strpos($content, "\r\n\r\n") + 4);   
        fclose($fp);
   
        $im = imagecreatefromstring($content);
        imagegif($im, $saveName);
        return $saveName;
    }
    return "";
} 

[/code]

allow_url_fopen 막힌 곳도 잘 됩니다.