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    <?php
    function GrabImage($url,$filename="") {
      if($url=="") return false;
      if($filename=="") {
        $ext=strrchr($url,".");
        if($ext!=".gif" && $ext!=".jpg") return false;
        $filename=date("dMYHis").$ext;
      }
      ob_start();
      readfile($url);
      $img = ob_get_contents();
      ob_end_clean();
      $size = strlen($img);
      $fp2=@fopen($filename, "a");
      fwrite($fp2,$img);
      fclose($fp2);
      return $filename;
    }
    function gethttpimage($url){ 
      if(!empty($url)){ 
        $filename=uniqid().strrchr($url,"."); 
        echo $filename;
        $get_file=@file_get_contents($url); 
        if($get_file){ 
          $fp=@fopen($filename,"w"); 
          @fwrite($fp,$get_file); 
          @fclose($fp); 
        } 
        return $imgUrl; 
      }else{ 
        return false; 
      } 
    } 
    //$img=GrabImage("http://www.jb51.net/images/logo.gif","");
    $img=gethttpimage("http://www.jb51.net/images/logo.gif","");
    if($img) echo '<pre><img src="'.$img.'"></pre>';
    else echo "false";
    ?>

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