收藏先，未经测试~

<?php
if(substr($_GET['url'], 0, 7)!="http://"){
exit;
}
readfile($_GET['url']);
?>

另外一种：

<?php
/**********************************************************************
突破防盗链的显示图片标签[simg],PHP程序部分
*********************************************************************/
ob_start();
$img=$_GET[&#39;url&#39;];

$host=$path=str_replace(&#39;http://&#39;,&#39;&#39;,$img);
$host=explode(&#39;/&#39;,$host);
$host=$host[0];
$path=strstr($path,&#39;/&#39;);
$fp = fsockopen($host, 80, $errno, $errstr, 30);
if ($fp)
{
@fputs($fp, &#34;GET $path HTTP/1.1rn&#34;);
@fputs($fp, &#34;Host: $hostrn&#34;);
@fputs($fp, &#34;Accept: */*rn&#34;);
@fputs($fp, &#34;Referer: http://$host/rn&#34;);
@fputs($fp, &#34;User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)rn&#34;);
@fputs($fp, &#34;Connection: Closernrn&#34;);
}

$Content = &#39;&#39;;
while ($str = fread($fp, 4096))
$Content .= $str;
@fclose($fp);
$pos=strpos($Content,&#34;rnrn&#34;);
$head=substr($Content,0,$pos);
$text=substr($Content,$pos+4);
header($head);
echo $text;
?>

以后试试~

163相册速度可是很不错

调用方法：

http://yourweb/文件名.php?url=http://图片地址