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
$maxtime 最大次数
调用方法：DownImageKeep(“http://www.baidu.com/img/baidu_jgylogo2.gif”,”http://baidu.com”,”a.gif”,”",0,10);
复制代码 代码如下:
function DownImageKeep($gurl, $rfurl, $filename, $gcookie="", $JumpCount=0, $maxtime=30)
{
$urlinfos = GetHostInfo($gurl);
$ghost = trim($urlinfos['host']);
if($ghost=='')
{
return FALSE;
}
$gquery = $urlinfos['query'];
if($gcookie=="" && !empty($rfurl))
{
$gcookie = Refurlcookie($rfurl);
}
$sessionQuery = "GET $gquery HTTP/1.1rn";
$sessionQuery .= "Host: $ghostrn";
$sessionQuery .= "Referer: $rfurlrn";
$sessionQuery .= "Accept: *
function Refurlcookie($gurl)
{
global $gcookie,$lastRfurl;
$gurl = trim($gurl);
if(!empty($gcookie) && $lastRfurl==$gurl)
{
return $gcookie;
}
else
{
$lastRfurl=$gurl;
}
if(trim($gurl)=='')
{
return '';
}
$urlinfos = GetHostInfo($gurl);
$ghost = $urlinfos['host'];
$gquery = $urlinfos['query'];
$sessionQuery = "GET $gquery HTTP/1.1rn";
$sessionQuery .= "Host: $ghostrn";
$sessionQuery .= "Accept: *
function GetHostInfo($gurl)
{
$gurl = preg_replace("/^http:///i", "", trim($gurl));
$garr['host'] = preg_replace("//(.*)$/i", "", $gurl);
$garr['query'] = "/".preg_replace("/^([^/]*)//i", "", $gurl);
return $garr;
}
?>
