gurl 要下载的图片地址
$rfurl 来路。如果目标图像做了防盗链设置，可以绕过。
$filename 下载图片保存的文件名，相对路径，不要用realpath
$gcookie 调整cookie 伪造的cookie
$JumpCount 跳转计数
$maxtime 最大次数
调用方法：DownImageKeep(“http://patible; MSIE 5.00; Windows 98)\r\n";
$sessionQuery .= "Connection: Close\r\n\r\n";
$errno = "";
$errstr = "";
$m_fp = fsockopen($ghost, 80, $errno, $errstr,10) or die($ghost.'<br />');
fwrite($m_fp,$sessionQuery);
$lnum = 0;
//获取详细应答头
$gcookie = "";
while(!feof($m_fp))
{
$line = trim(fgets($m_fp,256));
if($line == "" || $lnum>100)
{
break;
}
else
{
if(preg_match("/^cookie/i", $line))
{
$gcookie = $line;
break;
}
}
}
fclose($m_fp);
return $gcookie;
}
/**
* 获得网址的host和query部份
*
* @access public
* @param string $gurl 调整地址
* @return string
*/
function GetHostInfo($gurl)
{
$gurl = preg_replace("/^http:\/\//i", "", trim($gurl));
$garr['host'] = preg_replace("/\/(.*)$/i", "", $gurl);
$garr['query'] = "/".preg_replace("/^([^\/]*)\//i", "", $gurl);
return $garr;
}
?>