function imagefromURL($image,$rename)  {  $ch = curl_init($image);  curl_setopt($ch, CURLOPT_HEADER, 0);  curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);  curl_setopt($ch, CURLOPT_BINARYTRANSFER,1);  $rawdata=curl_exec ($ch);  curl_close ($ch);  $fp = fopen("$rename",'w');  fwrite($fp, $rawdata);   fclose($fp);  }

<?php  $url = "http://koonk.com/images/logo.png";  $rename = "koonk.png";  imagefromURL($url,$rename);  ?>